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| Author | Houpt, K.A. | ||||
| Title | Ingestive behavior | Type | Journal Article | ||
| Year | 1990 | Publication | The Veterinary clinics of North America. Equine practice | Abbreviated Journal | Vet Clin North Am Equine Pract |
| Volume | 6 | Issue | 2 | Pages  |
319-337 |
| Keywords | Animals; Eating/*physiology; Feeding Behavior/*physiology; Horses/*physiology | ||||
| Abstract | In summary, horses spend 60% or more of their time eating when grazing or when feed is available free choice. Grasses are their preferred food, but they supplement the grass with herbs and woody plants. Sweetened mixtures of oats and corn are the most preferred concentrate. Horses can increase or decrease the time spent eating and amount eaten to maintain caloric intake. Their intake is stimulated by drugs such as diazepam and by the presence of other horses. Horses stop eating when gastric osmolality increases; increases in plasma osmolality, protein, and glucose accompany digestion. Foals eat several times an hour and begin sampling solid food at the same time that their dam is eating. Several areas of particular importance to the equine industry have not been investigated. These areas include the effect of exercise on short- and long-term food intake and the influence of reproductive state on the feeding of mares. | ||||
| Address | Department of Physiology, New York State College of Veterinary Medicine, Cornell University, Ithaca | ||||
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| Language | English | Summary Language | Original Title | ||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0749-0739 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | PMID:2202495 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 42 | ||
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| Author | Houpt, K.A. | ||||
| Title | Formation and dissolution of the mare-foal bond | Type | Journal Article | ||
| Year | 2002 | Publication | Applied Animal Behaviour Science | Abbreviated Journal | Appl. Anim. Behav. Sci. |
| Volume | 78 | Issue | 2-4 | Pages |
319-328 |
| Keywords | Maternal; Horse; Foal; Separation; Ontogeny | ||||
| Abstract | The behavior of mares at foaling and their behavior during subsequent weekly brief separations from their foals was quantified. Thirteen multiparous pony mares were observed for the first 30 min after foaling. Activities directed toward the foal and toward the fetal membranes were recorded. There were 16+/-8 contacts with the fetal membranes, most in the first 10 min post-partum. There were 81+/-12 activities directed toward the foal. There was a downward trend in foal contacts over the first 30 min. Eight of the 13 mares were observed for the 30-60 min post-partum during which licking and touching the foal continued. Only one of the foals suckled in the first 30 min, but half had suckled by 60 min. Ten mares and foals were separated for 5 min each week for 9 weeks. Although mare responses (neighs and steps) decreased with age of the foal, the foals' responses increased from weeks 1 to 2 and then decreased with foal age. This indicates that foal attachment to the mare is not complete until it is 2 weeks old. | ||||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 3624 | ||
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| Author | Boyd, L.; Houpt, K..A. | ||||
| Title | Przewalski's Horse. The History and Biology of an Endangered Species | Type | Book Whole | ||
| Year | 1994 | Publication | Abbreviated Journal | SUNY Press | |
| Volume | Issue | Pages |
313 | ||
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| Publisher | SUNY Press | Place of Publication | Editor | ||
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| ISSN | ISBN | 9780791418895 | Medium | ||
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| Notes | from Professor Hans Klingels Equine Reference List | Approved | yes | ||
| Call Number | Serial | 971 | |||
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| Author | Houpt, K.; Kusunose, R. | ||||
| Title | Genetics of behaviour. | Type | Book Chapter | ||
| Year | 2000 | Publication | The Genetics of the Horse | Abbreviated Journal | |
| Volume | Issue | Pages |
281-306 | ||
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| Publisher | CABI Publishing | Place of Publication | New York | Editor | Bowling, A.T., Ruvinsky, A. |
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| ISSN | ISBN | 9780851994291 | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 4821 | ||
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| Author | Houpt, K. A.; Kusonose, R. | ||||
| Title | Genetic of behaviour | Type | Book Chapter | ||
| Year | 2000 | Publication | Genetics of the Horse | Abbreviated Journal | |
| Volume | Issue | Pages |
281-306 | ||
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| Publisher | Cab Intl | Place of Publication | Wallingford Oxfordshire | Editor | Bowling,A. T. ; Ruvinsky, A. |
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| ISSN | ISBN | 978-0851994291 | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 5021 | ||
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| Author | Houpt, K.A.; Law, K.; Martinisi, V. | ||||
| Title | Dominance hierarchies in domestic horses | Type | Journal Article | ||
| Year | 1978 | Publication | Applied Animal Ethology | Abbreviated Journal | Appl. Animal. Ethol. |
| Volume | 4 | Issue | 3 | Pages |
273-283 |
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| Abstract | Dominance hierarchies were studied in 11 herds of domestic horses and ponies (Equus caballus). A paired feeding test was utilized to establish the dominance--subordination relationship between each pair of animals in a herd. Aggressive actions, threats, bites, kicks and chases were also recorded. In small herds linear hierarchies were formed, but in large herds triangular relationships were observed. Aggression was correlated with dominance rank. Body weight, but not age, appear to affect rank in the equine hierarchy. Juvenile horses were more likely to share feed with each other than were adult horses and were usually subordinate to adult horses. The daughters of a dominant mare were dominant within their own herds. | ||||
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| Notes | Approved | no | |||
| Call Number | refbase @ user @ | Serial | 682 | ||
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| Author | Virga, V.; Houpt, K.A. | ||||
| Title | Prevalence of placentophagia in horses | Type | Journal Article | ||
| Year | 2001 | Publication | Equine veterinary journal | Abbreviated Journal | Equine Vet J |
| Volume | 33 | Issue | 2 | Pages |
208-210 |
| Keywords | Animals; *Behavior, Animal; Colic/epidemiology/*veterinary; Exploratory Behavior; *Feeding Behavior; Female; Horse Diseases/*epidemiology; Horses; Incidence; New York/epidemiology; *Placenta; Postpartum Period; Pregnancy; Prevalence; Questionnaires | ||||
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| Address | Animal Behavior Clinic, Cornell University Hospital for Animals, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, USA | ||||
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| Language | English | Summary Language | Original Title | ||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0425-1644 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | PMID:11266073 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 31 | ||
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| Author | Shaw, E.B.; Houpt, K.A.; Holmes, D.F. | ||||
| Title | Body temperature and behaviour of mares during the last two weeks of pregnancy | Type | Journal Article | ||
| Year | 1988 | Publication | Equine veterinary journal | Abbreviated Journal | Equine Vet J |
| Volume | 20 | Issue | 3 | Pages |
199-202 |
| Keywords | Animals; *Behavior, Animal; *Body Temperature; Circadian Rhythm; Eating; Female; Horses/*physiology; Labor, Obstetric/*physiology; Motor Activity; Pregnancy; Pregnancy, Animal/*physiology | ||||
| Abstract | Average daily core body temperature and behavioural patterns of pregnant mares were studied, in search of definitive signs of parturition within 24 h of the event. Nineteen pony mares were sampled twice daily for core body temperature. A significant temperature drop, averaging 0.1 degrees C (0.2 degrees F) was observed during the day prior to parturition. Between 18.00 h and 06.00 h, during the two weeks before parturition, Thoroughbred and Standardbred mares (n = 52) spent an average 66.8 per cent of their time standing, 27.0 per cent eating, 4.9 per cent lying in sternal recumbency, 1.0 per cent lying in lateral recumbency, and 0.3 per cent walking. On the night before parturition, mares spent significantly less time lying in sternal recumbency than on previous nights and on the night of parturition all behaviour patterns except eating were significantly different from the nights of the two weeks before parturition. There was an increase in walking (5.3 per cent), lying in sternal recumbency (8 per cent) and lying in lateral recumbency (5.3 per cent) whereas standing (53.3 per cent) was decreased. In 58 observed pregnancies, 54 mares (97 per cent) foaled in a recumbent position and 50 mares (86 per cent) foaled between 18.00 h and 06.00 h. | ||||
| Address | Department of Physiology, New York State College of Veterinary Medicine, Cornell University, Ithaca 14853 | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 0425-1644 | ISBN | Medium | ||
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| Notes | PMID:3402416 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 46 | ||
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| Author | Hogan, E.S.; Houpt, K.A.; Sweeney, K. | ||||
| Title | The effect of enclosure size on social interactions and daily activity patterns of the captive Asiatic wild horse (Equus przewalskii) | Type | Journal Article | ||
| Year | 1988 | Publication | Applied Animal Behaviour Science | Abbreviated Journal | Appl. Anim. Behav. Sci. |
| Volume | 21 | Issue | 1-2 | Pages |
147-168 |
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| Abstract | Two herds of Przewalski horses at the Minnesota Zoological Garden were observed during 1980 in each of 2 enclosures that differed in size. The larger enclosure was a 3.4-ha pasture; the smaller enclosure was a 17 x 30-m grass-less pen. One herd was composed of a stallion, 3 adult mares and 2 foals. The other consisted of a stallion and 2 mares. All occurrences of aggression, mutual grooming and snapping were recorded, and 5-min scan-samples of the activity state of each horse were taken. The time budgets, frequency of aggression and frequency of mutual grooming differed significantly with enclosure size for both herds. More time was spent pacing and milling in the smaller enclosure, and the frequency of aggressions and of mutual grooming was also higher. Only the foals exhibited snapping; frequency of snapping did not vary with enclosure size. More time was spent feeding in the larger enclosure. Provision of hay in the smaller enclosure eliminated the differences in time spent feeding. A second study was conducted during the spring of 1984 in an intermediate-sized enclosure, 0.4 ha, a sub-division of the pasture on which the horses were kept in 1980. One herd consisted of a stallion, 2 mares and 2 yearlings; the other consisted of a stallion, 3 mares and a foal. One of the stallions and all of the mares were those studied in 1980, but that stallion and one of the mares were in different herds than they had been in 1980. The frequency of aggression was similar to that observed in 1980. | ||||
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| Notes | Approved | no | |||
| Call Number | refbase @ user @ | Serial | 780 | ||
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| Author | i Rios, J.F.; Houpt, K. | ||||
| Title | Sexual behavior in geldings | Type | Journal Article | ||
| Year | 1995 | Publication | Applied Animal Behaviour Science | Abbreviated Journal | Appl. Anim. Behav. Sci. |
| Volume | 46 | Issue | 1-2 | Pages |
133-135 |
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| Abstract | Abstract In response to a request published in Equus, a magazine for those interested in horses, 85 owners of older geldings exhibiting sexual behavior completed history forms. The mean age of geldings was 16 f 5 years. Only 39 of the owners had had the gelding for at least a year before the behavior was noted. These cases could be used to determine the true age of onset of the problem. When log survivorship was used to determine whether there were one or two different populations, a break or change in the slope at age 16 indicated that there are two populations. One population shows the behavior from the time of castration and the other first exhibits the behavior in old age, possibly in response to an ACTH secreting pituitary adenoma. A total of 40% of the horses were Quarterhorses, the most numerous breed in the US; 78% of the horses were purebreds. Fewer than half the owners knew the age at which their horse had been castrated because they did not own the horse at the time. The mean age at castration, when known, was 3.3 f 2.5 years. The reason for contacting us was sexual behavior (70%), aggression (24%). or some other problem ( 1 o/o). Whether or not aggression was the presenting problem, most of the horses showed aggression (95%), particularly towards other geldings (88%)) but also towards people (3 1%). Copulatory behavior (mounting) was shown by 69% of the geldings and half of those were able to intromit. These findings indicate that the sexual behavior of geldings is a problem for owners and that aggression usually accompanies sexual behavior. The owners were encouraged to send serum samples taken before and after human chorionic gonadotropin (HCG) administration for testosterone and estrone sulfate analysis to determine whether residual testicular tissue was responsible for the horse’s behavior. Of the 14 horses tested, only one had elevated levels of testosterone indicating that there was residual testicular tissue. A total of six of the owners agreed to treat their horses with cyproheptadine at a dose of 8 mg day- ’ gradually increased to 88 mg day- ’ per horse. A total of three of the horses showed a decline in sexual and aggressive behavior, one got worse and two had side effects and treatment was withdrawn. |
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| Notes | Approved | yes | |||
| Call Number | Equine Behaviour @ team @ | Serial | 3627 | ||
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