Breed Information
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The German Breeding System Part 1: BST-Breed Suitability Test |
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The United States Rottweiler Club strongly believes that these tests are vital to maintain the Rottweiler in type and temperament and should be the cornerstone of any breeding program. What is the Ztp/BST
Only Qualified Dogs are Eligible for the BST
Conformation & Stability: Part 1 of the BST Character: Part 2 of the BST The last part is the courage test. The judge directs the helper to come out of the blind at the opposite end of the field (approximately 100 yards) than the dog and handler. The handler is not permitted to encourage or agitate the dog. The helper runs half way across the back of the field and then runs directly at the dog and handler, threatening with the stick. The dog is released. The dog must run at the helper at a full run and bite the sleeve. The handler is not allowed to move from the position from where the dog was released. The dog is given the command to 'out' by the handler who is still at the original position. If the dog does not 'out', the dog fails. Once the dog has outed, the dog must stay with the helper and guard him. The judge signals the handler to return to the dog. The handler returns to the dog and a leash is put on. The test is ended. The handler and dog report to the judge. The dog's performance is then critiqued to the spectators. There is no score given. It is either a pass or fail. Objectivity and Enforcement is Critical to Breed Maintenance If the dog fails the second part of the test, it is allowed to attempt the test once more upon the judge's discretion, however, if the judge believes the dog is of faulty character, the dog can be banned from future testing. After failing twice the dog may NEVER be retested. These penalties may seem harsh, but they enforce the confirmation breed standard better than any subjective judging opinion and most importantly, they assert that ONLY DOGS OF SOLID CHARACTER PASS and are used in breeding. |
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Dogbase Dogbase was developed during my term as a member of the ADRK Board, and as an organizer, mainframe systems/applications programmer, and a breed specialist I brought my fair share into the completion of this project for the ADRK and our Rottweiler breed. DOGBASE includes all of the ADRK-Rottweilers along with their standard breeding values. We have 6 values, figures above 100 show an increase in the value, figures below 100 show a decrease. 1 = HD 2 = ED 3 = undershot 4 = skull size 5 = cheek bones 6 = bone strength As an example: If a dog shows for its Value 1 (HD) the number 115, statistically there is a greater chance of hip dysplasia in offspring of that dog. If a dog has in Value 3 (skull size) also 115, this means that he has a high probability of being dominant for larger skull sizes. Very Important! As with any statistical evaluation, the results are only as good as the data used. These values must be interpreted with that in mind. If a dog has only been used once at stud, there will still be a value available, the value of relatives contributes to the value of individual dogs, so even a dog who has not yet been used at stud will show projected values. But if a dog had been used at stud 100 times, the numbers will be much more accurate. However, breeding will never be an exact science. Don't forget, there are lots of very good old breeders, who had great success with a good understanding of, and instinct about Rotts and some good common sense. DOGBASE is very helpful and I'm glad that we haveit, but it's not everything. Conversely, these days I personally couldn't imagine breeding without the additional input of DOGBASE.
More.....from Dr. M. Herrmann (ADRK) DOGBASE is both a database and a browser for all ADRK-Rottweilers born since the registration data was transferred to electronic processing in the mid 1980's. In addition the ancestors of these dogs, at least four generations back, are stored as well. All important information such as ancestors, name, stud book number, date of birth, breeder, hip and elbow score, stud tests (ZTP, Koerung), performance tests (SchH, IPO, AD, BH) and show titles are recorded. Dogs are indexed according to name or stud book number, and can be found easily. There are several ways to sort and extract data using keys such as time period, hip score, performance etc. In order to improve breeding information there are six traits which are used for breeding value evaluation. Breeding values are given for informational purposes only, but you may be closer to the genetic truth. The breeding values given are no guarantee of the quality of future offspring, but may provide a better base from which to make breeding selections. To get an idea of inbreeding the index of inbreeding can be calculated for every dog. All ADRK-Kennels together with their breeding history are stored and can be found according to breeders' name, kennel's name or kennel's number. The ADRK uses a computer database program called 'Dogbase'. Since July 1, 1999, ADRK breeders are required to use Dogbase as a tool for selecting the most suitable breeding partners. Dogbase is updated quarterly and is available on CD. This database provides a numerical score in 5 categories: HD, ED, Head, Cheekbone, Bone strength . For every trait, "100" is neutral (average). A number higher than 100 means that a dog is more likely to exhibit that trait, a number lower than 100 decreases the likelihood of that trait. The first two categories (HD, ED) are the most important, they must not exceed 110 (if they are higher then the scheduled breeding is not allowed). The last three categories are "recommended". Optimally, for the first 2 categories the lower the number, the better. This means the dog is less likely to throw these traits. An example of a "good" HD number is around 95, a great one is around 85-90. It is not hard to find hips under 100, but good elbows (since they have only recently been examined) are more difficult to find. As a result, "100" is almost a good number for elbows, less than 100 is great and less than 90 is outstanding. The numbers are dynamic, as the dog get its HD/ED ratings, its numbers will change and affect its parent's numbers (and further back), as well as its siblings. The numbers on a prospective (or already born) litter are simply the average of both parents until the offspring themselves get HD/ED ratings, Ztp / Koerung reports and show critiques. Dogbase is a very interesting tool. It is no substitute for good research, but it is a huge step in the right direction. German bloodline dogs are superior because, in Germany, they take dog breeding seriously. |
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Schutzhund (german for protection dog) is a dog sport that was developed in Germany in the early 1900s to test whether German Shepherd Dogs act and perform in the manner that the breed was intended, rather than simply evaluating a dog's appearance. Today, many breeds other than German Shepherds can compete in Schutzhund, but it is a demanding test for any dog and few of them can pass this kind of test. Schutzhund originated in Germany as a breeding suitability test for the German Shepherd dog and was quickly adopted for use by other working breeds such as the Malinois and Rottweiler. It provided breeders with a method to evaluate temperament, character, trainability, willingness and mental and physical soundness and to select and use only the highest quality dogs for breeding programs. Today, German Shepherd dogs in Germany may not be bred without aquiring Schutzhund titles, a breed survey, a conformation rating, hip (spine and elbow) x-rays and a certificate of endurance. Schutzhund (German for "protection dog") tests dogs of all breeds for the traits necessary for police-type work. Dogs that pass Schutzhund tests should be suitable for a wide variety of tasks: police work, specific odor detection, search and rescue, and many others. The purpose of Schutzhund is to identify dogs that have or do not have the character traits required for these demanding jobs. Some of those traits are: * Strong desire to work * Courage * Intelligence * Trainability * Strong bond to the handler * Perseverance * Protective Instinct Schutzhund training tests these traits. It also tests physical traits such as strength, endurance, agility, and scenting ability. The goal of Schutzhund is to illuminate the character of a dog through training. Breeders can use this insight to determine how and whether to use the dog in producing the next generation of working dogs. There are three schutzhund titles: Schutzhund 1 (SchH1), Schutzhund 2 (SchH2), and Schutzhund 3 (SchH3). SchH1 is the first title and SchH3 is the most advanced. Additionally, before a dog can compete for a SchH1, he must pass a temperament test called a B or BH (Begleithundprüfung, which translates as "traffic-sure companion dog test"). The B tests basic obedience and sureness around strange people, strange dogs, traffic, and loud noises. A dog that exhibits excessive fear, distractibility, or aggression cannot pass the B and so cannot go on to schutzhund. The Schutzhund test has changed over the years. Modern Schutzhund consists of three phases: tracking, obedience, and protection. A dog must pass all three phases in one trial to be awarded a schutzhund title. Each phase is judged on a 100-point scale. The minimum passing score is 70 for the tracking and obedience phases and 80 for the protection phase. At any time the judge may dismiss a dog for showing poor temperament, including fear or aggression. The tracking phase The obedience phase
The protection phase Schutzhund is a wonderful sport. It is fun for the dog and trainer, it's challenging and it's rewarding. But more than a sport, the schutzhund evaluation is the best way we have of testing a dog's temperament. There's plenty else we can tell about a dog off the trial field too — for instance, aversion to slick surfaces, dog aggression, gunshyness and other temperament and character faults that degrade working ability — but it's the best tool we have to evaluate breeding stock if we're honest with ourselves about what we see. The true temperament test of Schutzhund isn't (or shouldn't be) about points or how tough or extreme the dog is — it's about how well the dog puts it all together. |
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The German Breeding System Part 4: Korung (Advanced Breed SuitabilityTest) |
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The ADRK calls the Korung, Gekort or Gek.b.Eza, The USRC calls the test ABST, it is similar to the ZTP but the working requirements are higher.It's not really necessary for breeding, it's optional. The meaning of Korung is to select the best breeding dogs out of all the dogs with a Ztp (Breed Suitability Test) It is written in the ADRK rules that we should utilize these few selected dogs in our future breeding since they display the strength in character, strong and powerful self confidence. Rottweilers whom have passed the Koerung are a selection of special dogs in their appearance, temperament and working ability.
Dogs to be entered must:
- Be at least 36mths for (males) & 30mths for (females) & not older than 6yrs.
- Have passed the ZTP (BST)
- Have acheived 3 show ratings (two of them in adult classes) from 2 different ADRK judges, graded at least V.
- Have aquired a working title VPG3 or IPO3 (males) / VPG1 or IPO1 (females)
- Have passed an AD test (Ausdauerpruefung) endurance test.
- Have good enough hip/elbow ratings.
- Eye colour 3A or darker
- Dogs who pass are endorsed (Gekoert) for 2yrs.The dog may take the Koerung test again.
- If the dog passes the 2nd time + showing progeny of at least 4 offspring *2 different litters, the dog is endorsed Gek Bis EzA (lifetime)
The Konung, or Breeding Qualification tests are the most selective breeding tests for Rotteilers. According to the ADRK breeding regulations, the purpose of the Korung is..."to select the best from among the dogs suitable for breeding to be able to utilize them more intensively in the breeding program. The minimum age requirements for the Korung are thirty months for females and thirty-six months for males. Only the best of the best Rottweilers are permitted to try for the Korung. The dogs must have excelled in conformation by placing at least Very Good (Sehr Gut/SG) at three conformation shows under at least two different judges. The dogs must have achieved working titles - shutzhung titles or IPO titles. Males must have a schutzhund III and females must have at least a Schutzhund I title. The dogs myst have received their Breed Suitability Test with hip ratings in the highest categories. The dogs must have passed a twelve mile endurance test called an AD (Ausdaurprufung). Another important requirement is that the dogs must have very dark mouth pigmentation and eye color.
The Korung is offered in the Spring and Fall each year. The actual test is very similar to the Breed Suitability Test but more intensified. Generally, less than half of the dogs trying for the Korung actually pass it. Dogs which pass the Korung are awarded the title for two years, abbreviated Angekort. During this two-year period the dog’s offspring are examined and if the offspring are good then the parent may try to obtain the highest breeding rating - Breeding Qualified until the end of Breeding Utilization Age, abbreviated Gekort bis EzA. For males a minimum of three good litters are required and for females one good litter is required.
The breeding value of a Rottweiler is derived from its ancestors and reflected in the quality of its offspring. Rottweilers of value for breeding carry pedigrees that indicate the accomplishments of their ancestors. |
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Bones Muscle Power Excerpts from the standard: B. MUSCLE MASS References
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Rottweiler Breed Standard USRC Breed Standard Contents Brief historical summary General Appearance Important Proportions Behavior / Temperament Head Body Limbs Skin Coat Size and weight Faults Eliminating Faults Origin: Germany Utilization: Companion, service and working dog Brief historical summary: The Rottweiler is considered to be one of the oldest dog breeds. Its origin goes back to Roman times. These dogs were kept as herder or driving dogs. They marched over the Alps with the Roman legions, protecting the humans and driving their cattle. In the region of Rottweil, these dogs met and mixed with the native dogs in a natural crossing. The main task of the Rottweiler now became the driving and guarding of the herds of cattle and the defense of their masters and their property. This breed acquired its name from the old free city of Rottweil and was known as the "Rottweil butcher's dog".
The butchers bred this type of dog purely for performance and usefulness. In due course, a first rate watch and driving dog evolved which could also be used as a draught dog. When, at the beginning of the twentieth century, various breeds were needed for police service, the Rottweiler was amongst those tested. It soon became evident that the breed was highly suitable for the tasks set by police service and therefore they were officially recognized as police dogs in 1910.
Rottweiler breeders aim at a dog of abundant strength, black coated with clearly defined rich tan markings, whose powerful appearance does not lack nobility and which is exceptionally well suited to being a companion, service and working dog. General Appearance: The Rottweiler is a medium to large size, stalwart dog, neither heavy nor light and neither leggy nor weedy. His correctly proportioned, compact and powerful build leads to the conclusion of great strength, agility and endurance. Important Proportions: The length of the body, measured from the sternum (breast-bone) to the ischiatic tuberosity, should not exceed the height at the withers by, at most, 15 %. Behavior / Temperament: Good natured, placid in basic disposition and fond of children, very devoted, obedient, biddable and eager to work. His appearance is natural and rustic, his behavior self assured, steady and fearless. He reacts to his surroundings with great alertness. Head Cranial Region: Skull: Of medium length, broad between the ears. Forehead line moderately arched as seen from the side. Occipital bone well developed without being conspicuous Stop: Well defined
Facial Region: Nose: Nose well developed, more broad than round with relatively large nostrils, always black Muzzle: The foreface should appear neither elongated nor shortened in relation to the cranial region. Straight nasal bridge, broad at base, moderately tapered. Lips: Black, close fitting, corner of the mouth not visible, gum as dark as possible. Jaws / Teeth: Upper and lower jaw strong and broad. Strong complete dentition (42 teeth) with scissor bite, the upper incisors closely overlapping the lower incisors. Cheeks: Zygomatic arches pronounced. Eyes: Of medium size, almond shaped, dark brown in color. Eyelids close fitting. Ears: Medium-sized, pendant, triangular, wide apart, set on high. With the ears laid forward close to the head the skull appears to be broadened. Neck: Strong, of fair length, well muscled, slightly arched, free from throatiness, without dewlap. Body Back: Straight, strong, firm. Loins: Short, strong and deep. Croup: Broad, of medium length, slightly rounded. Neither flat nor falling away. Chest: Roomy, broad and deep (approximately 50 % of the shoulder height) with well developed forechest and well sprung ribs. Belly: Flanks not tucked up. Tail: In natural condition, level in extension of the upper line; at ease may be hanging. USRC Adopted Exception: Docked at the first or second joint within 7 days of birth or left in its natural state. Limbs Forequarters: Seen from the front, the front legs are straight and not placed too closely to each other. The forearm, seen from the side, stands straight. The slope of the shoulder blade is about 45 degrees to the horizontal. Shoulders: Well laid back. Upper arm: Close fitting to the body. Forearm: Strongly developed and muscular. Pasterns: Slightly springy, strong, not steep. Front feet: Round, tight and well arched; pads hard; nails short, black and strong. Hindquarters: Seen from behind, legs straight and not too close together. When standing free, obtuse angles are formed between the dog's upper thigh and the hip bone, the upper thigh and the lower thigh and the metatarsal. Upper thigh: Moderately long, broad and strongly muscled. Lower thigh: Lower thigh: Long, strongly and broadly muscled at top, sinewy. Hocks: Sturdy well angulated hocks; not steep. Hind feet: Slightly longer than the front feet. Toes strong, arched, as tight as front feet. Gait: The Rottweiler is a trotting dog. In movement the back remains firm and relatively stable. Movement harmonious, steady, full of energy and unrestricted, with good stride. Skin Skin on the head: Overall tight fitting. When the dog is alert, the forehead may be slightly wrinkled. Coat Hair: The coat consists of a top coat and an undercoat. The top coat is of medium length, coarse, dense and flat. The undercoat must not show through the top coat. The hair is a little longer on the hindlegs. Color: Black with clearly defined markings of a rich tan on the cheeks, muzzle, throat, chest and legs, as well as over both eyes and under the base of the tail. Size and weight Males Females Height at withers: 61 - 68 cm 56 - 63 cm 61 - 62 cm is small 56 - 57 cm is small 63 - 64 cm is medium height 58 - 59 cm is medium height 65 - 66 cm is large - correct height 60 - 61 cm is large - correct height 67 - 68 cm is very large 62 - 63 cm is very large Weight: approximately 50 kg approximately 42 kg General appearance: Light, weedy, leggy appearance. Light in bone and muscle. Head: Hound-type head. Narrow, light, too short, long or coarse head. Flat forehead (lack of stop or too little stop). Foreface: Long or pointed muzzle; split nose; Roman nose (convex nasal bridge) or dish-faced (concave nasal bridge); aquiline nose; pale or spotted nose (butterfly nose). Lips: Pendulous, pink or patchy; corner of lips visible. Jaws: Narrow lower jaw. Bite: Pincer bite. (level bite) Cheeks: Strongly protruding. Eyes: Light, deep set. Also too full and round eyes; loose eye-lids. Ears: Set on too low, heavy, long, slack or turned backwards. Also flying ears or ears not carried symmetrically. Neck: Too long, thin, lacking muscle. Showing dewlap or throaty. Body: Too long, too short or too narrow. Back: Too long, weak; sway-back or roach back. Croup: Too sloping, too short, too flat or too long. Chest: Flat ribbed or barrel shaped. Too narrow behind. Tail: Set on too high or too low. Forequarters: Narrow or crooked front legs. Steep shoulder placement. Loose or out at elbow. Too long, too short or too straight in upper arm. Weak or steep pastern. Splayed feet. Too flat or too arched toes. Deformed toes. Light colored nails. Hindquarters: Flat thighs, hocks too close, cow hocks or barrel hocks. Joints with too little or too much angulation. Dewclaws. Skin: Wrinkles on head. Coat: Soft, too short or too long. Wavy coat; lack of undercoat. Color: Markings of incorrect color, not clearly defined. Markings which are too spread out. Eliminating Faults General: Distinct reversal of sexual type, i.e. feminine dogs or masculine bitches. Teeth: Overshot or undershot bite, wry mouth; lack of one incisive tooth, one canine, one premolar and one molar. Eyes: Entropion, ectropion, yellow eyes, different coloured eyes. Tail: Kink tail, ring tail, with strong lateral deviation Hair: Definitely long or wavy coat. Color: Dogs which do not show the typical Rottweiler coloring of black with tan markings. White markings. Behavior: Anxious, shy, cowardly, gun-shy, vicious, excessively suspicious, nervous animals. Male animals must have two apparently normal testicles fully descended into the scrotum. |
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CRATE TRAINING WHY CRATE TRAIN? WHAT SIZE AND STYLE OF CRATE SHOULD I BUY? Select a crate that is large enough for the puppy or dog to turn around in and comfortably lie down. A crate that is too large will allow a young puppy to eliminate in a corner, while remaining comfortable lying elsewhere. With most wire crates and some plastic crates, you can purchase divider panels which can be adjusted or removed as the puppy grows. A puppy may require more than one crate to accommodate it while it grows. For puppies under one year of age, it is much safer for your pup to be crated in a plastic airline style kennel (i.e. Vari-Kennel) or aluminum dog box. With this type of crate, your pup is less likely to injure itself by getting a paw, leg or jaw stuck. For older dogs, wire crates provide better air circulation and are roomier. Fold-down, suitcase-style wire cages (i.e. Midwest, Precision) are also portable and easy to set up and take down. These types of cages generally work best for dogs that are already crate trained. Soft crates are made out of denier nylon, nylong mesh and aluminum, and are lightweight and portable for travel. They are not; however, recommended until your dog is thoroughly crate trained, and should be used only when you are in close proximity to your dog as they can be easily broken out of or chewed through. For most full-grown adult rottweilers, an extra-large crate will accommodate most males, and a large or extra-large crate will accommodate most females. WHAT IS SAFE TO PUT IN A CRATE? Don't be tempted to buy blankets, pads or beds for inside the crate if you have a young puppy. Not only will they usually become expensive chew toys and present a choking hazard, but they interfere with effectively housebreaking your pup. Puppies do not want to lay in their urine, and using absorbent material in a puppy's cage allows your pup to eliminate, while staying dry and comfortable. Nothing should be placed in the crate with a puppy or dog except a safe chew toy, such as a nylabone or kong. Stuffed kong toys provide enjoyment for your dog while contained to a crate and prevent boredom. Water and food can be placed in your puppy's crate when you are close by to supervise. Keep in mind that young puppies need to eliminate immediately after eating and drinking, as a puppy can only "hold it" for very short periods of time. A good rule of thumb is that a puppy will need to eliminate every x number of hours, with x being the age of the puppy in months, plus 1. (i.e. a 2 month old puppy will need to eliminate every 3 hours, a 7 month old puppy will need to go at least every 8 hours). NEVER EVER leave your puppy or dog in a crate with it's collar on! If your dog catches it's collar on the crate, it can seriously injure or choke your dog! HOW TO CRATE TRAIN YOUR PUPPY The goal in crate training your puppy is to make it's crate a safe and enjoyable place. A crate should never be used for discipline or bad behavior.
It bears repeating, NEVER EVER leave your puppy or dog unattended in any crate with a collar on! If your dog catches it's collar on the crate, it can seriously injure or choke your dog!
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| Inbreeding and linebreeding What are inbreeding and linebreeding, and what effect do they have? In genetic terminology, inbreeding is the breeding of two animals who are related to each other. In its opposite, outcrossing, the two parents are totally unrelated. Since all pure breeds of animal trace back to a relatively limited number of foundation dogs, all pure breeding is by this definition inbreeding, although the term is not generally used to refer to matings where a common ancestor does not occur behind sire and dam in a four or five generation pedigree. Breeders of purebred livestock have introduced a term, linebreeding, to cover the milder forms of inbreeding. Exactly what the difference is between linebreeding and inbreeding tends to be defined differently for each species and often for each breed within the species. On this definition, inbreeding at its most restrictive applies to what would be considered unquestioned incest in human beings - parent to offspring or a mating between full siblings. Uncle-niece, aunt-nephew, half sibling matings, and first cousin matings are called inbreeding by some people and linebreeding by others. What does inbreeding (in the genetic sense) do? Basically, it increase the probability that the two copies of any given gene will be identical and derived from the same ancestor. Technically, the animal is homozygous for that gene. The heterozygous animal has some differences in the two copies of the gene Remember that each animal (or plant, for that matter) has two copies of any given gene (two alleles at each locus, if you want to get technical), one derived from the father and one from the mother. If the father and mother are related, there is a chance that the two genes in the offspring are both identical copies contributed by the common ancestor. This is neither good nor bad in itself. Consider, for instance, the gene for PRA (progressive retinal atrophy), which causes progressive blindness. Carriers have normal vision, but if one is mated to another carrier, one in four of the puppies will have PRA and go blind. Inbreeding will increase both the number of affected dogs (bad) and the number of genetically normal dogs (good) at the expense of carriers. Inbreeding can thus bring these undesirable recessive genes to the surface, where they can be removed from the breeding pool. Unfortunately, we cannot breed animals based on a single gene - the genes come as a package. We may inbreed and rigorously remove pups with PRA or even their parents and littermates from the breeding pool. But remember inbreeding tends to make all genes more homozygous. In at least one breed, an effort to remove the PRA-causing gene resulted in the surfacing of a completely different and previously unsuspected health problem. It is easier and faster to lose genes (sometimes very desirable genes) from the breeding pool when inbreeding is practiced than when a more open breeding system is used. In other words, inbreeding will tend to produce more nearly homozygous animals, but generally some of the homozygous pairs will be "good" and others will be "bad". Furthermore, there may be genes where heterozygosity is an advantage. There are several variant hemoglobin types in human beings, for instance, where one homozygote suffers from some type of illness, the other homozygote is vulnerable to malaria, and the heterozygote is generally malaria-resistant with little or no negative health impacts from a single copy of the non-standard hemoglobin gene. A more widespread case is the so-called major histocompatibility complex (MHC), a group of genes where heterozygosity seems to improve disease resistance. Is there a way of measuring inbreeding? Wright developed what is called the inbreeding coefficient. This is related to the probability that both copies of any given gene are derived from the same ancestor. A cold outcross (in dogs, probably a first-generation cross between two purebreds of different, unrelated breeds would be the best approximation) would have an inbreeding coefficient of 0. Note that this dog would not be heterozygous at every locus. There are genes shared with every multicellular organism, genes shared with all animals, genes shared with all animals with backbones, genes shared with all four-limbed animals (including most fish and all amphibians, reptiles, birds and mammals) and with all mammals. Although the DNA might differ slightly, the proteins produced would be functionally the same. Further, the chances are that our dogs with inbreeding coefficient = 0 would still be homozygous for some genes shared by all dogs. The inbreeding coefficient thus specifically refers to those genes that are variable (more than one possible form) in the species and even the breed being considered. An inbreeding coefficient of 1 (rare in mammals) would result if the only matings practiced over many generations were between full brother and full sister. The figure shows how the inbreeding coefficient chages with generations of brother-sister matings. As a general rule, this type of mating in domestic animals cannot be kept up beyond 8-10 generations, as by that time the rate of breeding success is very low. However, the rare survivors may go on to found genetically uniform populations. This has been done in laboratory rodents, producing inbred strains of mice and rats so similar genetically that they easily tolerate skin or organ grafts from other animals from the same inbred strain. However, the process of inbreeding used to create these strains generally results in loss of fertility (first seen in these mammals as a reduction in litter size) which actually kills off the majority of the strains between 8 and 12 generations of this extent of inbreeding. A handful of the initial strains survive this bottleneck, and these are the inbred laboratory strains. However, very little selection other than for viability and fertility is possible during this process. You wind up with animals homozygous for a more or less random selection of whatever genes happened to be in the strains that survived, all of which derive from the parents of the initial pair. Note that two very inbred parents can produce offspring that have very low inbreeding coefficients if the inbred parents do not have ancestors in common. This, however, assumes that mates are available who are not strongly inbred on a common ancestor. If the parents are related to each other, their own inbreeding coefficients will indeed increase the inbreeding coefficients of their offspring. The critical factor is the coefficient of kinship, which is the inbreeding coefficient of a hypothetical offspring of the two individuals. Inbreeding has become an important consideration for wildlife conservationists. Many wild populations are in danger of extinction due to some combination of habitat destruction and hunting of the animals, either to protect humans or because the animal parts are considered valuable. (Examples are ivory, rhinorcerus horn, and infant apes for the pet trade, as well as meat hunting.) For some of these animals the only real hope of survival is captive breeding programs. But the number of animals available in such captive breeding programs, especially at a single zoo, is often limited. Biologists are concerned that the resulting inbred populations would not have all of the genes found in the wild populations, and thus lose some flexibility in responding to change. In reaction to this threat they have developed networks such that animals can be exchanged among captive breeding poplulations in such a way as to minimize the overall inbreeding of the captive population. The idea is to select pairs in such a way that the inbreeding coefficient of the offspring is kept as low as possible. Most elementary genetics books have instructions for calculating the inbreeding coefficient from the pedigree. (For more information, see Dr. Armstrong's site, Significant Relationships.) However, these procedures have two major limitations. First, they are not really designed for cases where there are multiple common ancestors, though they can be used separately for each common ancestor and the results added. Second, they become impossibly complex as the length of the pedigree increases. It is by no means uncommon in dogs, for instance, to have pedigrees which can be researched in the AKC stud book and the KC Gazette and which go back to foundation dogs born around the turn of the century - perhaps 30 or even 40 generations earlier. With this type of long pedigree, foundation animals may appear a million times or more in the pedigree. With this in mind, a computer program called GENES was developed by Dr. Robert Lacy for the calculation of the inbreeding coefficient, kinship coefficients among animals in the breeding pool, percent contributions of varying founding ancestors, and related output, assuming full pedigrees to the foundation stock were available for all animals currently in the breeding population. For captive breeding populations, the less inbreeding the better, and this is the way the program is used. In purebred livestock the situtation is a little different - we want homozygosity for those genes which create a desirable similarity to the breed standard. Wright's defense of inbreeding was based on this fact. However, inbreeding tends to remove those heterozygotes which are beneficial (e.g., the MHC) as well as increasing undesirable as well as desirable homozygotes. The practice is most dangerous in the potential increase of homozygous health problems which are not obvious on inspection, but which shorten the life span or decrease the quality of life for the animal. I do not at the present time have other dog breeds for comparison, but I recently submitted a Shetland Sheepdog pedigree database to Dr. Armstrong for calculation of true inbreeding coefficients. This database was based on full pedigrees of all AKC Shetland Sheepdogs that had sired 10 or more breed champions (males) or produced 5 or more (females.) These top producing animals were set up as the current living population (a somewhat artifial assumption, as the dogs involved where whelped from 1930 to after 1990.) I would love to see some comparisons with other breeds. |
| The Rottweiler Pyramid by Steve Wolfson Correct breed type is disappearing! The powerful bone substance and definitive masculinity of the Rottweiler we once apprized is now hard to find. Replacing these traits are pinheads, fine bones, distilled facsimiles. Not only is breed type on the decline, so is correct working Rottweiler temperament. In its place we now have, shy, soft, little to no “willingness to work” temperaments. Few Rottweilers in the show-ring and outside it could make the transition from that to the working arena. At the conformation/working spectrum, with rare exception, what we encounter are the extremes; they are beautiful show specimens either with no working temperament or on the working side, great working temperaments with poor structure and marginal breed type. How did this happen? When enthusiasts decide to purchase a new puppy or a breeder selects breeding partners for their future litters, they draw conclusions and evaluate their choice from a narrow perspective using only a specific aspect of the breed as their criteria. For example, some breeders only seek to use the construction of the Rottweiler as their mark of excellence. They demand only the best angulated, the most correct fronts and rears as their guide for breeding partners omitting other important aspects that comprise the whole picture. Some only use health certifications as their guide. They will only breed or keep dogs that have attained all the necessary certifications such as OFA, heart and CERF clearances, dismissing from the formula, breed type, construction and gait. From a long-term breed viewpoint, this single-aspect criterion is myopic and disastrous. Is there a guide to facilitate a comprehensive approach to the breed without sacrificing one aspect for another? The answer is yes. Euclid, the Greek mathematician, stated in his axiom, “the whole is equal to the sum of its parts.” Despite this being of mathematical relevancy, we can apply this statement to help guide us in a more complete understanding and evaluation of the Rottweiler. By using a “Rottweiler Pyramid”, where each element of the Rottweiler is prioritized in a hierarchal order of importance, Breed Type, Temperament, Construction, Locomotion, one can view each part on its own merits. Once a thorough understanding of these related elements is achieved, a complete and balanced picture results. It should be the goal of every breeder to incorporate all of these aspects into a breeding program. (Note: For this essay, I have distilled the topics down to their basic, large block ideas. I also have omitted health clearances from the pyramid, since they are a prerequisite for breeding, showing and training. It would be foolish to pursue a show/sport career with a dog that possessed dysplasia or other serious health issues further than as a personal companion) 1. Breed Type Number one in the pyramid is Breed Type. The description of it comprises 85% of the standard, its major and defining aspect. Its correct understanding is the foundation of any breeding program, evaluation for judgments in the conformation ring and the first rung on the ladder for the complete understanding of the Rottweiler. In this area, some prefer to take shortcuts by reinterpreting the standard and taking liberties with its translation, instead of traveling the more difficult path by reading and completely understanding its blueprint. Without a thorough and broad perspective about breed type (or any other segment of the standard), one can only build a house of understanding that is incomplete. This argument, that many do not understand or know what “correct” breed type is, can easily be proofed with the fine boned, narrow muzzles, pinhead, absence of masculinity exhibits we now encounter in the show ring and obviously on the street. An excellent and easy test for “knowledge of breed type” is asking the simple question, “What is Breed Type?” Many have great difficulty with the answer. When asked this question exhibitors and owners have articulated breed type as “excellent gait”. Some say it is “correct temperament”. Yet others define it as “performance on the working field”. None are correct. Breed Type should be defined as “the essence of characteristics that distinguishes it from others."(1) In simpler terms, it is the appearance of the breed, which separates it from others. Is that not what first attracts us to the Rottweiler? In the show ring, where we should see only the best examples of type, save for a small percentage that is not, we see the lack of correct breed type abundantly demonstrated. Currently here in the states, many exhibits do not possess the minimum essentials in head and body type. In fact, many heads and bodies are at best, only sufficiently correct and do not possess the implied masculinity of the breed. The most defining aspect of correct breed type, the Rottweiler head, the breed’s icon, should have great prominence. The standard devotes detail to its description with its “Broad between the ears, broad muzzle at the base, moderate arch of the topskull, pronounced stop, zygomatic arch and specified 3 to 2 skull to muzzle ratio.” In essence, the head is powerful, substantial and impressive. Yet, so many exhibits now possess the opposite of what is correct, a long, soft in appearance narrow muzzle, shallow zygomatic arch and stops. This creates a head type, which recedes in to the body having no prominence. The power and strength specified in the standard for the muzzles and topskull is not there; the heads are hound-like. In correlation with the details of correct head type, are the details of correct body type. The standard specifies, "His bone and muscle mass must be sufficient to balance his frame, giving a compact and very powerful appearance." The standard is direct with its specifications on body type with the key words of compact, powerful and muscle mass. The bone should be ample in proportion to the size of the body, the muscles mass should be strong and well defined and the body length should appear to be short and compact. There should be not doubt in appearance concerning the amount of bone mass, muscle mass and compactness of the body. However, what we encounter are fine and spindly bones, long bodies, little to no muscle mass and definition. The underlying theme in the standard for the Rottweiler is masculinity. Correct breed type requires it. The standard does not specifically mention this word; it is implied. Even the bitches should possess power and substance without weakness. Softness, slight in build, refined, feminine are not words to use when describing or having a mental picture of the breed.2. Temperament The second tier on the pyramid and essential aspect of the standard is temperament. Without correct temperament, all other aspects or traits, even if they are of superior quality, have little value! It is important to understand what correct temperament is and how to evaluate it. From the standard, “The Rottweiler is basically a calm, confident, courageous dog… A Rottweiler is self-confident and responds quietly and with a wait-and-see attitude to influences in his environment. He has an inherent desire to protect home and family, and is an intelligent dog of extreme hardness and adaptability with a strong willingness to work, making him especially suited as a companion, guardian and general all purpose dog.” What is correct temperament? How can we recognize it? We must take our template from the standard. Ideally, he is a calm, confident, courageous dog of extreme hardness and adaptability with a strong willingness to work. Few Rottweilers fit the ideal of the standard, which can demonstrate all of its positives. More likely, they measure up or down in differing levels. Because he is working dog, we must test and evaluate these differing levels of temperament through his work. Albeit, the show ring is largely popular here in the states and in the international community, many rely solely on a dog’s behavior within the show ring as a demonstration of temperament. This is dangerous because it does not give us any keen insights to the complete spectrum of temperament; its main purpose is to evaluate conformation. Some would say that the show ring does give us a window into the dog’s nature. However, exhibiting and gaiting in the conformation ring can only demonstrate the extreme problems in a dog’s temperament, such as the inability to stand for an examination, shy, nervousness or viciousness. It has extremely limited value when assessing the complexity of temperament.The Germans use the term “Belastbarkeit”, a dog’s capacity, whether high, medium or low, to sustain its drive, tractability and nerve under the conditions and pressures of work. In Germany, they place a high value in the dog’s level of courage and its ability to deal with stress. There, the minimum test is the Zuchttauglichkeitsprufung (breed suitability test where the dog is tested for its courage and stress level); one cannot breed their Rottweiler unless it has passed the “Ztp”. They also believe that the attainment of a working title is a demonstration of Belastbarkeit. By putting a Rottweiler through its paces in its attainment of a working title, be it a CD, CDX, Tracking, Sch, etc., we gain valuable information about the strengths and weakness of its temperament. In some countries, the attainment of a working title is so highly prized, that a conformation championship title is only awarded when a working title has been previously achieved. Assessing character, the dog’s ability to deal with corrections, stress, and its level of enthusiasm while working, tells us much about its mind-set. Without this knowledge of temperament, one cannot have a complete picture for a breeding program. 3. Construction Third in the pyramid is construction, a balanced, harmonious musculo/skeletal system in accordance with the blueprint of the standard. Understanding the construction of a Rottweiler is analogous to the building of a house. The builder (breeder) must adhere to the architect’s design (the standard), maintain a stable foundation and alignment of walls (the skeletal system), while creating continuity so that all the segmented parts of the house work together harmoniously (the locomotion of the dog). As a breeder, owner or exhibitor, it is important in the complete understanding of Rottweiler construction, to acquaint oneself with the skeletal anatomy of the dog. The standard dictates how the proportions and ratios, angles and layout of the skeleton should be so that the Rottweiler can gait with the highest efficiency in harmony with its breed type. This insures that its architectural design will best suit the Rottweiler for its task as a multi-purpose working/guard dog. A house must have structural integrity. Walls must be plumb, materials used in the construction must have strength to withstand ware and tear, and parts must work. This applies to the Rottweiler as well. Front and rear legs must be balanced, strong and straight, the back must be firm but flexible, angulations must be ample enough to support proper reach of the front and drive of the rear. There should be symmetry and harmony of the working parts as well as a defined amount of muscle mass to support the skeletal frame. Like temperament, correct construction is the by-product of a thoughtful, careful, breeding program. A Rottweiler cannot develop good construction from within. With the exception of building stronger or larger muscle mass via a weight gaining and conditioning program, when a dog possesses an incongruity or imbalance in the skeletal system, it cannot be corrected. A short upper arm, long in the back, shallow sternum, east-west feet, low pastern, poorly angulated croup, etc. impedes efficiency. These problems are inherited from the pedigree. We have often heard exhibitors and breeders say, “Don’t worry, he’ll out grow this or grow into that.” Unfortunately, ugly ducklings do not become swans! Problems related to the skeletal structure are indelible and take many generations to improve or correct. The most direct path for correct construction is to breed with pedigrees that possess it. 4. Locomotion Fourth in the pyramid is locomotion. Because the Rottweiler was used for driving cattle, its modality for locomotion is demonstrated in the trot. Unlike the other aspects in this pyramid, construction and locomotion have inexorable linkage in that; exemplary gait is the result of outstanding structure. When a Rottweiler is correct in construction, according to the blueprint of the standard, this balanced skeletal architecture produces an unrestricted, harmoniously flowing powerful gait. Unfortunately, few Rottweilers possess construction with such a high degree of balance and harmony that they move with this ideal effortless grace. Similar to the levels of temperament, locomotion has differing levels of efficiency dependent upon the correctness of construction or conversely, the amount of imbalances within the dog. The more “imbalances” or incorrect construction the dog possess in its angulations and ratios, the more impedance occurs to free flowing gait. The best perspective to assess locomotion is to view the dog, going away, coming towards and in the side gait. When the dog moves going and coming, we assess its lateral displacement, which has influence on the lateral center of gravity. A correct front and rear assembly stabilizes the dog and prevents him from excessive side-to-side movement, similar to the effect of torsion bars in a car. Incorrect construction such as, out at the elbow, east–west feet, crossing over, moving wide and fiddle fronts etc., destabilizes the center of gravity. These incongruities produce impedance, which requires more energy, puts stress on the bones and muscles and leads to fatigue. In the side gait, we assess all the moving parts working together. Once in the trot and at a reasonable speed, not to fast or slow, the mechanics of the musculo/skeletal structure is set in motion. Here, we can observe the reach, the drive of the rear, spring of step, amount of ground covered, and temperament in the dog’s “willingness to perform,” an important element. Within the side gait, we observe many examples of locomotion from exemplary to the unharmonious. Occasionally, we encounter a dog that appears to be sound in structure when standing still, but during the examination of the side gait, they show a short stride of the front legs and rear legs, or a mix of this with a correct front stride, but short rear drive. Here, a problem may exist that does not easily reveal itself. That is why gaiting in a small ring or by moving the exhibits once around does not do justice for the complete assessment. Adding to this mixture is the exhibit that is pushed or cajoled around the ring. Outwardly, the dog appears good in construction and theoretically should gait correctly but for some reason it has “no willingness to perform.” This is one example of how temperament plays a factor in gait. The field of canine gait is complex and requires a good knowledge of anatomy, mechanics, breed type and purpose. It is important for the concerned breeder and student of the breed to gain at least a proficient knowledge of these topics to understand Rottweiler locomotion. References 1. The Priority of Breed Type in the Rottweiler, Wolfson, Steve, Steve Wolfson publisher, 2003 2. The Dog in Action, Lyon, MacDowell, Howell Book House publisher, 1982 |



“The ideal Rottweiler is a medium large, robust and powerful dog - Dogs are characteristically more massive throughout with larger frame and heavier bone than bitches - His bone and muscle mass must be sufficient to balance his frame, giving a compact and very powerful appearance - Neck- Powerful, well muscled - Loin is short, deep and well muscled - Legs are strongly developed with straight, heavy bone - Upper thigh is fairly long, very broad and well muscled - Lower thigh is long, broad and powerful, with extensive muscling - His movement should be balanced, harmonious, sure, powerful and unhindered, with strong forereach and a powerful rear drive ”
must look carefully to find this trait; the breed has lost its distinction.
one can hear spectators and breeders alike say, “Oh that dog moved beautifully with great reach and drive”, “It was well put together.” Yes, that could be said however, the dog looked more like a Doberman than a Rottweiler. Excellent construction with outstanding gait is not breed type. These two attributes are separate entities in a breeding program and are not mutually interchangeable or should be misconstrued for breed type.
shy and lack confidence in their temperament. This is a negative and detrimental trend. Once set in motion, it is extremely difficult to reverse. One only has to see our European and International counterparts by comparison to understand the differences in breed type and working temperament. In the international community, the accent is placed on breed type and working temperament.