Studbook selection
Encyclopedia
Studbook selection is a process used in certain breeds of horse
s to select breeding stock. It allows a breed registry
to direct the evolution of the breed towards the ideal by eliminating unhealthy or undesirable animals from the population. The removal of individuals from a population is called culling
, and does not suggest killing the animal in question. Typically, culls are castrated
or they and their offspring are unable to be registered.
Registries which implement studbook selection differ from registries which require only two parents of the proper pedigree
or registration status. For example, a horse foal with two Thoroughbred
parents is almost certainly a Thoroughbred, but a foal with two Oldenburg
parents may not be accepted through studbook selection to be an Oldenburg.
The pattern of studbook selection varies from nation to nation and registry to registry, but among horse registries, particularly warmblood
registries, the general outline includes an inspection of foal
s before formal registration, evaluation of conformation
and movement
of broodmares
, and evaluation of the conformation, movement, health, and performance ability of stallions
. Decisions about which mares and stallions are suitable breeding stock are made by elected breed judges, who strive for objectivity and transparency.
Foals are usually presented at a local mare and foal show by their dam's side. If the foal's sire and dam are in the studbook, and he generally fits into the breeding goal, he receives his papers and a brand
on the left thigh. The brand identifies his registry. Although foals are not usually scored, some registries award "Premium" status to high-quality foals, and colts may be deemed stallion prospects by the judge(s).
Foal inspections are also used to determine whether or not a stallion is producing offspring that fit the breeding goal.
registries is the studbook inspection. Fillies
may be evaluated at age 3 at a local mare and foal show, and colts
may be evaluated at age 2 at the Körung, which translates to "breed survey", "bonitation" or "licensing".
Typically there are prerequisites in terms of pedigree and height, which vary depending on the registry. Most registries would like to see colts at least 15.3 hands high at the withers
, and fillies at least 15.2hh, with the expectation that they will grow a bit more.
Pedigree requirements also vary, and many studbooks expect to see only stallion sons of Main Mare Book mares. This encourages local breeders to keep high-quality mares in the region. Preferably, future breeding stock have at least 4 generations of approved sport horse
pedigree. Mares with less pedigree, or less than is desirable to her registry, may be entered into a "Pre-Mare Book", though she generally cannot produce stallion sons. What constitutes "approved" also depends on the registry.
Most studbook inspections follow a similar outline. The horse is judged on their conformation
from each side, and then led to and away the judge(s) at the walk and trot on a hard surface to show the gaits. To evaluate the canter, horses are turned loose in an enclosed area one at a time. To evaluate jumping ability, the horse is sent down a chute over fences without a rider ("free jumping").
Horses are scored from 1 to 10 on a variety of traits, which may include any of the following:
quality, divided into "breed type" and "sex type." A horse with high sex type exhibits strong secondary sex characteristics
; in other words, feminine mares and masculine stallions. Breed type varies widely between registries, but essentially refers to the attractiveness of the horse and its suitability for sport. This aesthetic is an important part of breeding marketable horses, though registries and their judges tend to be conscious of the danger of overweighting beauty.
do not vary as significantly for horses as they do for dogs, as a horse's conformation is extremely important to its ability to perform and stay sound doing so. Generally, all horses are ideally divisible into three equal parts: forehand, trunk, hindquarters. This is called "harmony" and has that effect on the eye. Another quality generally agreed upon is that from the front and rear, all four legs should be straight. Beyond that, uphill build, high-set neck, a mobile head-neck connection and long legs are more important in dressage
horses than jumping
horses. The musculature and outline of the back and loin, called the topline, is important to most registries, as are large joints and hooves with "dry" legs.
Conformation scores are usually broken down further to allow breeders to compare specific traits in horses - for instance the "forelimbs" and "hindlimbs" are almost always awarded separate scores.
, and canter
are the gaits needed for sport
. All three are important for dressage
, and the canter is especially important for jumping
. In all three, a long stride and even rhythm are paramount. Most registries look for a diligent, marching walk in which the entire body is used. The trot and canter are ideally energetic with obvious suspension (moment in which the horse is totally airborne) and an elastic quality. The energy for all three gaits should come from the hind end.
Scores may be given for "walk", "trot" and "canter" individually, with a separate score for "correctness of gaits". Some registries do not ask to see the mare canter, though this is uncommon. The canter is, in some cases, weighted more heavily for jumping mares.
talent of a horse. At inspections, stallions in particular are judged on their ability to jump and their form. The best jumpers approach the jump confidently and alter their stride to find the correct take-off spot ("scope"), arc over the jump ("bascule
") and draw their forelegs up out of the way. Horses that do not arc over the fence, knock down fences, lose their rhythm, dangle their legs or hold their heads high and stiff are not good jumpers.
All registries require stallions to free jump to pass the studbook inspection, though usually dressage-oriented stallions are not asked to jump as high. Mares may not jump at all, or may only be asked to jump if they are from jumping-oriented families.
or dentition
. Stallions may also undergo radiographs to screen against OCD
, laryngoscopies
to screen against airway obstructions, and semen analysis to ensure fertility. Stallions which have had surgeries or other treatments to correct a congenital defect are not allowed to breed. Based on the registry, stallions may have to be free of cribbing
, recurrent airway obstruction
("heaves"), equine recurrent uveitis
("moon blindness"), laryngeal hemiplegia
("roaring"), glanders
, etc.
Mare performance tests are often open to geldings, as well. By comparing mother-daughter scores, patterns in the traits that stallions pass on can be calculated.
A performance test for mares or geldings is either a one-day "Field Test" or 2- to 5-week "Station Test".
A stallion performance test is either a 30-day "suitability test", or a "station test" lasting 70, 100, or even 300 days. Today, only young stallions owned by the State Stud of Celle
attend the 300-Day Test. The suitability test must be combined with a performance record in order to fulfill a stallion's performance requirement.
and show jumping
, though eventing
and combined driving
are sometimes permitted. Some North American branches of sport horse registries even accept show results in show hunter
s.
Registries may have further requirements for stallions to retain their approval for breeding. Most will disapprove a stallion whose offspring do not fit the breeding aim.
Horse
The horse is one of two extant subspecies of Equus ferus, or the wild horse. It is a single-hooved mammal belonging to the taxonomic family Equidae. The horse has evolved over the past 45 to 55 million years from a small multi-toed creature into the large, single-toed animal of today...
s to select breeding stock. It allows a breed registry
Breed registry
A breed registry, also known as a stud book or register, in animal husbandry and the hobby of animal fancy, is an official list of animals within a specific breed whose parents are known. Animals are usually registered by their breeders when they are still young...
to direct the evolution of the breed towards the ideal by eliminating unhealthy or undesirable animals from the population. The removal of individuals from a population is called culling
Culling
Culling is the process of removing animals from a group based on specific criteria. This is done either to reinforce certain desirable characteristics or to remove certain undesirable characteristics from the group...
, and does not suggest killing the animal in question. Typically, culls are castrated
Castration
Castration is any action, surgical, chemical, or otherwise, by which a male loses the functions of the testicles or a female loses the functions of the ovaries.-Humans:...
or they and their offspring are unable to be registered.
Registries which implement studbook selection differ from registries which require only two parents of the proper pedigree
Pedigree chart
A pedigree chart is a diagram that shows the occurrence and appearance or phenotypes of a particular gene or organism and its ancestors from one generation to the next, most commonly humans, show dogs, and race horses....
or registration status. For example, a horse foal with two Thoroughbred
Thoroughbred
The Thoroughbred is a horse breed best known for its use in horse racing. Although the word thoroughbred is sometimes used to refer to any breed of purebred horse, it technically refers only to the Thoroughbred breed...
parents is almost certainly a Thoroughbred, but a foal with two Oldenburg
Oldenburg (horse)
The Oldenburg is a warmblood horse from the north-western corner of Lower Saxony, what was formerly the Grand Duchy of Oldenburg. The breed was built on a mare base of all-purpose farm and carriage horses, today called the Alt-Oldenburger...
parents may not be accepted through studbook selection to be an Oldenburg.
The pattern of studbook selection varies from nation to nation and registry to registry, but among horse registries, particularly warmblood
Warmblood
Warmbloods are a group of middle-weight horse types and breeds, primarily originating in Europe, registered with organizations that are characterized by open studbook policy, studbook selection, and the aim of breeding for equestrian sport...
registries, the general outline includes an inspection of foal
Foal
A foal is an equine, particularly a horse, that is one year old or younger. More specific terms are colt for a male foal and filly for a female foal, but these terms are used until the horse is age three or four. When the foal is nursing from its dam , it may also be called a suckling...
s before formal registration, evaluation of conformation
Equine conformation
Equine conformation evaluates the degree of correctness of a horse's bone structure, musculature, and its body proportions in relation to each other. Undesirable conformation can limit the ability to perform a specific task. Although there are several universal "faults," a horse's conformation is...
and movement
Horse gait
Horse gaits are the various ways in which a horse can move, either naturally or as a result of specialized training by humans.-Classification:...
of broodmares
Mare (horse)
A mare is an adult female horse or other equine.In most cases, a mare is a female horse over the age of three, and a filly is a female horse age three and younger. However, in Thoroughbred horse racing, a mare is defined as a female horse more than four years old; in harness racing a mare is a...
, and evaluation of the conformation, movement, health, and performance ability of stallions
Stallion (horse)
A stallion is a male horse that has not been gelded .Stallions will follow the conformation and phenotype of their breed, but within that standard, the presence of hormones such as testosterone may give stallions a thicker, "cresty" neck, as well as a somewhat more muscular physique as compared to...
. Decisions about which mares and stallions are suitable breeding stock are made by elected breed judges, who strive for objectivity and transparency.
Foal inspection
Livestock branding
Livestock branding is a technique for marking livestock so as to identify the owner. Originally, livestock branding only referred to a hot brand for large stock, though the term is now also used to refer to other alternative techniques such as freeze branding...
on the left thigh. The brand identifies his registry. Although foals are not usually scored, some registries award "Premium" status to high-quality foals, and colts may be deemed stallion prospects by the judge(s).
Foal inspections are also used to determine whether or not a stallion is producing offspring that fit the breeding goal.
Studbook inspection
The first method of evaluating breeding stock in many warmbloodWarmblood
Warmbloods are a group of middle-weight horse types and breeds, primarily originating in Europe, registered with organizations that are characterized by open studbook policy, studbook selection, and the aim of breeding for equestrian sport...
registries is the studbook inspection. Fillies
Filly
A filly is a young female horse too young to be called a mare. There are several specific definitions in use.*In most cases filly is a female horse under the age of four years old....
may be evaluated at age 3 at a local mare and foal show, and colts
Colt (horse)
A colt is a young male horse, under the age of four. The term "colt" is often confused with foal, which refers to a horse of either sex under one year of age....
may be evaluated at age 2 at the Körung, which translates to "breed survey", "bonitation" or "licensing".
Typically there are prerequisites in terms of pedigree and height, which vary depending on the registry. Most registries would like to see colts at least 15.3 hands high at the withers
Withers
The withers is the ridge between the shoulder blades of a four-legged animal. In many species it is the tallest point of the body, and in horses and dogs it is the standard place to measure the animal's height .-Horses:The withers in horses are formed by the dorsal spinal processes of roughly the...
, and fillies at least 15.2hh, with the expectation that they will grow a bit more.
Pedigree requirements also vary, and many studbooks expect to see only stallion sons of Main Mare Book mares. This encourages local breeders to keep high-quality mares in the region. Preferably, future breeding stock have at least 4 generations of approved sport horse
Sport horse
Sport horse, or Sporthorse, is a term used to describe a type of horse, rather than any particular breed. The term generally refers to horses bred for the traditional Olympic equestrian sporting events of dressage, eventing, show jumping, and combined driving. The precise definition varies...
pedigree. Mares with less pedigree, or less than is desirable to her registry, may be entered into a "Pre-Mare Book", though she generally cannot produce stallion sons. What constitutes "approved" also depends on the registry.
Most studbook inspections follow a similar outline. The horse is judged on their conformation
Equine conformation
Equine conformation evaluates the degree of correctness of a horse's bone structure, musculature, and its body proportions in relation to each other. Undesirable conformation can limit the ability to perform a specific task. Although there are several universal "faults," a horse's conformation is...
from each side, and then led to and away the judge(s) at the walk and trot on a hard surface to show the gaits. To evaluate the canter, horses are turned loose in an enclosed area one at a time. To evaluate jumping ability, the horse is sent down a chute over fences without a rider ("free jumping").
Horses are scored from 1 to 10 on a variety of traits, which may include any of the following:
Type
Type is a subjectiveSubjectivity
Subjectivity refers to the subject and his or her perspective, feelings, beliefs, and desires. In philosophy, the term is usually contrasted with objectivity.-Qualia:...
quality, divided into "breed type" and "sex type." A horse with high sex type exhibits strong secondary sex characteristics
Sexual dimorphism
Sexual dimorphism is a phenotypic difference between males and females of the same species. Examples of such differences include differences in morphology, ornamentation, and behavior.-Examples:-Ornamentation / coloration:...
; in other words, feminine mares and masculine stallions. Breed type varies widely between registries, but essentially refers to the attractiveness of the horse and its suitability for sport. This aesthetic is an important part of breeding marketable horses, though registries and their judges tend to be conscious of the danger of overweighting beauty.
Conformation
Standards of conformationEquine conformation
Equine conformation evaluates the degree of correctness of a horse's bone structure, musculature, and its body proportions in relation to each other. Undesirable conformation can limit the ability to perform a specific task. Although there are several universal "faults," a horse's conformation is...
do not vary as significantly for horses as they do for dogs, as a horse's conformation is extremely important to its ability to perform and stay sound doing so. Generally, all horses are ideally divisible into three equal parts: forehand, trunk, hindquarters. This is called "harmony" and has that effect on the eye. Another quality generally agreed upon is that from the front and rear, all four legs should be straight. Beyond that, uphill build, high-set neck, a mobile head-neck connection and long legs are more important in dressage
Dressage
Dressage is a competitive equestrian sport, defined by the International Equestrian Federation as "the highest expression of horse training." Competitions are held at all levels from amateur to the World Equestrian Games...
horses than jumping
Show jumping
Show jumping, also known as "stadium jumping," "open jumping," or "jumpers," is a member of a family of English riding equestrian events that also includes dressage, eventing, hunters, and equitation. Jumping classes commonly are seen at horse shows throughout the world, including the Olympics...
horses. The musculature and outline of the back and loin, called the topline, is important to most registries, as are large joints and hooves with "dry" legs.
Conformation scores are usually broken down further to allow breeders to compare specific traits in horses - for instance the "forelimbs" and "hindlimbs" are almost always awarded separate scores.
Gaits
The walk, trotTrot (horse gait)
The trot is a two-beat diagonal gait of the horse, where the diagonal pairs of legs move forward at the same time. There is a moment of suspension between each beat....
, and canter
Canter
The canter is a controlled, three-beat gait performed by a horse. It is a natural gait possessed by all horses, faster than most horses' trot but slower than the gallop, and is used by all riders. The speed of the canter varies between 16-27 km/h , depending on the length of the stride of the horse...
are the gaits needed for sport
Sport horse
Sport horse, or Sporthorse, is a term used to describe a type of horse, rather than any particular breed. The term generally refers to horses bred for the traditional Olympic equestrian sporting events of dressage, eventing, show jumping, and combined driving. The precise definition varies...
. All three are important for dressage
Dressage
Dressage is a competitive equestrian sport, defined by the International Equestrian Federation as "the highest expression of horse training." Competitions are held at all levels from amateur to the World Equestrian Games...
, and the canter is especially important for jumping
Show jumping
Show jumping, also known as "stadium jumping," "open jumping," or "jumpers," is a member of a family of English riding equestrian events that also includes dressage, eventing, hunters, and equitation. Jumping classes commonly are seen at horse shows throughout the world, including the Olympics...
. In all three, a long stride and even rhythm are paramount. Most registries look for a diligent, marching walk in which the entire body is used. The trot and canter are ideally energetic with obvious suspension (moment in which the horse is totally airborne) and an elastic quality. The energy for all three gaits should come from the hind end.
Scores may be given for "walk", "trot" and "canter" individually, with a separate score for "correctness of gaits". Some registries do not ask to see the mare canter, though this is uncommon. The canter is, in some cases, weighted more heavily for jumping mares.
Jumping
The free jump can give great insight into the jumpingShow jumping
Show jumping, also known as "stadium jumping," "open jumping," or "jumpers," is a member of a family of English riding equestrian events that also includes dressage, eventing, hunters, and equitation. Jumping classes commonly are seen at horse shows throughout the world, including the Olympics...
talent of a horse. At inspections, stallions in particular are judged on their ability to jump and their form. The best jumpers approach the jump confidently and alter their stride to find the correct take-off spot ("scope"), arc over the jump ("bascule
Bascule (horse)
Bascule is the natural round arc a horse's body takes as it goes over a jump. The horse should rise up through its back, stretching its neck forward and down, when it reaches the peak of his jump. Ideally, the withers are the highest point over the fence. This is often described as the horse...
") and draw their forelegs up out of the way. Horses that do not arc over the fence, knock down fences, lose their rhythm, dangle their legs or hold their heads high and stiff are not good jumpers.
All registries require stallions to free jump to pass the studbook inspection, though usually dressage-oriented stallions are not asked to jump as high. Mares may not jump at all, or may only be asked to jump if they are from jumping-oriented families.
Overall impression
The category for "overall impression" gives the judge(s) a place to comment on other qualities. Obvious behavioral tendencies or personality traits may be noted here, as is the physical maturity of the horse.Results
Most registries require that a stallion earn an average 7.0 with no score below 5.0 to be licensed. Mares who do not earn a sufficient score (usually average 6.0 none below 5.0) are usually entered into the Pre-Mare Book.Health examinations
Almost all studbooks have some type of health requirement for stallions seeking approval. The veterinary exam may occur before, during, or after the Körung, and always rules out stallions with congenital defects of the genitaliaCryptorchidism
Cryptorchidism is the absence of one or both testes from the scrotum. It is the most common birth defect regarding male genitalia. In unique cases, cryptorchidism can develop later in life, often as late as young adulthood. About 3% of full-term and 30% of premature infant boys are born with at...
or dentition
Overbite
Overbite refers to the extent of vertical overlap of the maxillary central incisors over the mandibular central incisors.Overbite may also refer to:* Overbite , an extension for the Mozilla Firefox web browser....
. Stallions may also undergo radiographs to screen against OCD
Osteochondrosis
Osteochondrosis is a family of orthopedic diseases of the joint that occur in children and adolescents and in rapidly growing animals, particularly pigs, horses, and dogs. They are characterized by interruption of the blood supply of a bone, in particular to the epiphysis, followed by localized...
, laryngoscopies
Laryngoscope
Laryngoscopy is a medical procedure that is used to obtain a view of the vocal folds and the glottis. Laryngoscopy may be performed to facilitate tracheal intubation during general anesthesia or cardiopulmonary resuscitation or for procedures on the larynx or other parts of the upper...
to screen against airway obstructions, and semen analysis to ensure fertility. Stallions which have had surgeries or other treatments to correct a congenital defect are not allowed to breed. Based on the registry, stallions may have to be free of cribbing
Cribbing (horse)
Cribbing or crib biting is a compulsive behavior or stereotypy seen in some horses, and considered a stable vice. It involves the horse grabbing a solid object such as the stall door or fence rail with its incisors, then arching its neck, pulling against the object, and sucking in air...
, recurrent airway obstruction
Recurrent Airway Obstruction
Recurrent airway obstruction, also known as broken wind, heaves, or sometimes by the term usually used for humans , is a respiratory disease in horses...
("heaves"), equine recurrent uveitis
Uveitis
Uveitis specifically refers to inflammation of the middle layer of the eye, termed the "uvea" but in common usage may refer to any inflammatory process involving the interior of the eye....
("moon blindness"), laryngeal hemiplegia
Laryngeal paralysis
Laryngeal paralysis in animals is a condition in which the nerves and muscles that control the movements of one or both arytenoid cartilages of the larynx cease to function, and instead of opening during inspiration and closing during swallowing, the arytenoids remain stationary in a somewhat...
("roaring"), glanders
Glanders
Glanders is an infectious disease that occurs primarily in horses, mules, and donkeys. It can be contracted by other animals such as dogs, cats and goats...
, etc.
Performance tests
Performance tests take place when the breeding horses are old enough to be ridden, and are designed to give the registry detailed, objective information on the actual performance ability of the horses. It is mandatory for a stallion to prove himself in sport, and mares complete performance requirements to earn awards.Mare performance tests are often open to geldings, as well. By comparing mother-daughter scores, patterns in the traits that stallions pass on can be calculated.
A performance test for mares or geldings is either a one-day "Field Test" or 2- to 5-week "Station Test".
A stallion performance test is either a 30-day "suitability test", or a "station test" lasting 70, 100, or even 300 days. Today, only young stallions owned by the State Stud of Celle
Celle State Stud
Celle State Stud is a state-owned facility for horse breeding in Celle, Germany. The State Stud of Celle, located in what is now known as Lower Saxony, was founded in 1735 by order of George II, King of Great Britain, Elector of Hanover and Duke of Brunswick-Lüneburg. Its purpose was to make...
attend the 300-Day Test. The suitability test must be combined with a performance record in order to fulfill a stallion's performance requirement.
Field test
The field test lasts only one day and is designed for mares and geldings with some education under saddle. In a field test, the horse is scored on the basic gaits, free jumping ability, and rideability. A guest rider is also used.Station test
The station test is attended by young horses, held separately for stallions, is made up of an initial training period and a final test. The training environment, usually held at one of the state-owned stud farms, is standardized to increase the reliability of the results. Before the final test, the training director scores the horses on a number of traits. The final test is run by visiting experts and guest riders, who also score the horses. The results of the station test provide insight into the characteristics that make a riding horse: not just physical ability, but the interior qualities that make him or her a good partner. Horses attending a station test are evaluated on the following:Interior qualities
The scores for the "inner" qualities are given by the training director, who depends on the input of the horse's riders and handlers. The interior qualities include character, temperament, constitution, and willingness. A horse with a good character is affable and people-oriented, and does not display defensive reactions such as ear-pinning during grooming, saddling, or everyday handling. A horse with a good temperament is balanced, attentive, responsive, sensitive with a desire to please. A horse with a good constitution is resilient physically and psychologically, not succumbing to pressure, and is healthy with a lot of stamina. A willing horse is courageous, curious, trainable and does not balk from being asked to work.Gaits
The basic gaits are evaluated under saddle both during the training period and by the guest experts. The regulations require that the movements be as natural as possible. A good walk is flat-footed with a regular 4-beat rhythm, diligent with long stride. A poor walk is arhythmical, pacey or short-strided. A good trot and canter are rhythmical and never disconnected. The stride is long, the horse swings through a relaxed topline. The trot and canter are elastic and give the impression that the horse is pushing from the rear. In particular, the canter must have a distinct uphill tendency. Short or choppy canter strides are not desirable.Jumping
Jumping is scored a number of different ways. The training director scores his or her general impression of the horse's aptitude, and the experts evaluate the horse while jumping with and without a rider. A good jumper never loses the rhythm of his canter. He approaches the jump in balance, arcs over the fence (bascule), draws both the front and rear legs out of the way, and adapts his stride to the space between the jumps (scope).Rideability
Rideability is scored by both the training director and the guest riders, and is of paramount importance. A highly rideable horse is comfortable and uncomplicated to ride, and does not require the rider to hold him or her up (self-carriage). The horse is balanced, attentive, intelligent and obedient.Cross country
The cross-country test serves to test the stallion's stamina, though he is also judged on his canter and jumping during this part of the final test. His recovery time and heart rate are taken as part of the veterinary examination.Results
The 70-Day, 100-Day and 300-Day tests fulfill a stallion's performance requirements, and both the station and field tests satisfy a mare or gelding's. A stallion that attends the suitability test must perform at an age-appropriate level in open competition to complete his requirements. A mare or stallion may also fulfill these requirements with performance at a higher level of competition. Most registries prefer to see show results in dressageDressage
Dressage is a competitive equestrian sport, defined by the International Equestrian Federation as "the highest expression of horse training." Competitions are held at all levels from amateur to the World Equestrian Games...
and show jumping
Show jumping
Show jumping, also known as "stadium jumping," "open jumping," or "jumpers," is a member of a family of English riding equestrian events that also includes dressage, eventing, hunters, and equitation. Jumping classes commonly are seen at horse shows throughout the world, including the Olympics...
, though eventing
Eventing
Eventing is an equestrian event comprising dressage, cross-country, and show jumping. This event has its roots in a comprehensive cavalry test requiring mastery of several types of riding...
and combined driving
Combined driving
Combined driving also known as Horse Driving Trials is an equestrian sport involving carriage driving. In this discipline the driver sits on a vehicle drawn by a single horse, a pair or a team of four. The sport has three phases: Dressage, Cross-country Marathon and Obstacle Cone Driving and is...
are sometimes permitted. Some North American branches of sport horse registries even accept show results in show hunter
Show hunter
The show hunter is a type of show horse that is judged on its movement, manners, and way of going, particularly while jumping fences. The horses are shown in hunt seat style tack, and are often of Warmblood or Thoroughbred type, though a hunter-style pony is also seen in youth classes...
s.
Registries may have further requirements for stallions to retain their approval for breeding. Most will disapprove a stallion whose offspring do not fit the breeding aim.