Records |
Author |
Nitschelm D, H.V.D.C. |
Title |
The influence of chlormadinone acetate treatment on the concentration of some stereoids in the blood, on the ovarian activity and on.. |
Type |
Journal Article |
Year |
1977 |
Publication |
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Abbreviated Journal |
Tijdschr Diergeneesk |
Volume |
102 |
Issue |
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Pages |
861-872 |
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from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1419 |
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Author |
Nitschelm D, H.V.D.C. |
Title |
The influence of chlormadinone acetate treatment on the concentration of some stereoids in the blood, on the ovarian activity, and on the sexual behaviour of the.. |
Type |
Journal Article |
Year |
1977 |
Publication |
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Abbreviated Journal |
Tijdschr Diergeneesk |
Volume |
102 |
Issue |
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Pages |
61-872 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1420 |
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Author |
PITRA, C.H.; STREICH, W.J.; REINSCH, A.; FICKEL, J. |
Title |
Die Population des Somali-Wildesels (Equus africanus somalicus Sclater) in menschlicher Obhut: Demographische und genetische Aspekte |
Type |
Journal Article |
Year |
1995 |
Publication |
Zoologische Garten |
Abbreviated Journal |
Zool. Garten. |
Volume |
N.F. 65 |
Issue |
4 |
Pages |
245-257 |
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1472 |
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Author |
Robertshaw D, T.C. |
Title |
Sweat gland function of the donkey |
Type |
Journal Article |
Year |
1969 |
Publication |
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Abbreviated Journal |
J Physiol |
Volume |
205 |
Issue |
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Pages |
79-89 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1509 |
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Author |
Ruffner Ga, C.S. |
Title |
Age structure, condition, and reproduction of two burro (Equus asinus) populations from Grand Canyon National Park, Arizona |
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Conference Volume |
Year |
1979 |
Publication |
Symposium on the Ecology and Behavior of wild and feral Equids, Laramie |
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Pages |
235 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
Call Number |
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Serial |
1534 |
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Author |
Heyes, C.M.; Dawson, G.R. |
Title |
A demonstration of observational learning in rats using a bidirectional control |
Type |
Journal Article |
Year |
1990 |
Publication |
Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology |
Abbreviated Journal |
Q J Exp Psychol B |
Volume |
42 |
Issue |
1 |
Pages |
59-71 |
Keywords |
appetite; attention; imitation; problem solving; psychomotor performance; Appetitive Behavior; Attention; Imitative Behavior; Problem Solving; Psychomotor Performance |
Abstract |
Hungry rats observed a conspecific demonstrator pushing a single manipulandum, a joystick, to the right or to the left for food reward and were then allowed access to the joystick from a different orientation. The effects of right-pushing vs left-pushing observation experience on (1) response acquisition, (2) reversal of a left-right discrimination, and (3) responding in extinction, were examined. Rats that had observed left-pushing made more left responses during acquisition than rats that had observed right-pushing, and rats that had observed demonstrators pushing in the direction that had previously been reinforced took longer to reach criterion reversal and made more responses in extinction than rats that had observed demonstrators pushing in the opposite direction to that previously reinforced. These results provide evidence that rats are capable of learning a response, or a response-reinforcer contingency, through conspecific observation. |
Address |
University of Cambridge, U.K. |
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02724995 (Issn) |
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Cited By (since 1996): 49; Export Date: 17 May 2007; Source: Scopus; Language of Original Document: English; Correspondence Address: Heyes, C.M. |
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Serial |
1766 |
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Author |
Rapin, V.; Poncet, P.A.; Burger, D.; Mermod, C.; Richard, M.A. |
Title |
[Measurement of the attention time in the horse] |
Type |
Journal Article |
Year |
2007 |
Publication |
Schweizer Archiv fur Tierheilkunde |
Abbreviated Journal |
Schweiz Arch Tierheilkd |
Volume |
149 |
Issue |
2 |
Pages |
77-83 |
Keywords |
Age Factors; Animals; *Attention/physiology; Conditioning, Operant; Cross-Over Studies; Female; Horses/*physiology; Learning/*physiology; Male; Memory/*physiology; Time Factors |
Abstract |
A study carried out on 49 horses showed that it is possible to measure the attention time by operant conditioning. After teaching horses an instrumental task using a signal, we were then able to test their attention time by asking them to prolong it increasingly while setting success and failure criteria. Two tests were performed 3 weeks apart. The 2nd test was feasible without relearning, a proof of memory, and was repeatable, a proof of consistency in the attention time. A significant difference was observed between the 3 age groups. Young horses often performed very well during the 1st test but their attention dropped in the 2nd test while older horses were more stable with respect to attention and even increased it slightly. The study shows that there are individual differences but it was not possible to prove a significant influence of breed, gender and paternal influence. Consequently, learning appears to be one of the most interesting approaches for evaluating the attention of horses and for observing their behaviour. |
Address |
Laboratoire d'Ecoethologie, Universite de Neuchatel, Suisse. veronique.rapin@unine.ch |
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French |
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Original Title |
Mesure de la duree d'attention chez le cheval |
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0036-7281 |
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Notes |
PMID:17343134 |
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Call Number |
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Serial |
1770 |
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Author |
Zehnder, A.M.; Ramer, J.C.; Proudfoot, J.S. |
Title |
The use of altrenogest to control aggression in a male Grant's Zebra (Equus burchelli boehmi) |
Type |
Journal Article |
Year |
2006 |
Publication |
Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians |
Abbreviated Journal |
J Zoo Wildl Med |
Volume |
37 |
Issue |
1 |
Pages |
61-63 |
Keywords |
Aggression/*drug effects; Animals; Animals, Zoo; Behavior, Animal/*drug effects; Dose-Response Relationship, Drug; Equidae/*physiology; Female; Horses; Male; Treatment Outcome; Trenbolone/*analogs & derivatives/therapeutic use |
Abstract |
A male Grant's Zebra (Equus burchelli boehmi) housed with two mares at the Indianapolis Zoo had a 9-yr history of intermittent aggressive behavior toward mares and other animals. Periods of separation allowed the mares time to heal after sustaining superficial bite wounds. On 26 March 2003, the male (890293) was started on altrenogest at a dosage of 19.8 mg orally once daily to allow reintroduction. The dosage was doubled (40 mg once a day) because of a perceived lack of response. Reintroduction to the mares occurred on 17 May 2003 with no signs of aggression noted. Treatment was reduced to 19.8 mg orally once a day and then discontinued. Altrenogest was restarted at 39.5 mg orally once a day because of the planned introduction of a new mare. There have been no major aggressive displays at this dosage of altrenogest and the dosage has recently been reduced following successful introduction of a new mare. |
Address |
University of Florida, 2015 SW 16th Street, Gainesville, Florida 32610, USA |
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English |
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1042-7260 |
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PMID:17312816 |
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no |
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1772 |
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Author |
Robinson, H.C. |
Title |
Equine interspecies aggression |
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Year |
2007 |
Publication |
The Veterinary record |
Abbreviated Journal |
Vet. Rec. |
Volume |
160 |
Issue |
7 |
Pages |
244 |
Keywords |
*Aggression; Animals; Behavior, Animal; Equidae; Horses/*physiology/*psychology |
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0042-4900 |
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PMID:17308028 |
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no |
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1773 |
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Author |
van Heel, M.C.V.; Kroekenstoel, A.M.; van Dierendonck, M.C.; van Weeren, P.R.; Back, W. |
Title |
Uneven feet in a foal may develop as a consequence of lateral grazing behaviour induced by conformational traits |
Type |
Journal Article |
Year |
2006 |
Publication |
Equine veterinary journal |
Abbreviated Journal |
Equine. Vet. J. |
Volume |
38 |
Issue |
7 |
Pages |
646-651 |
Keywords |
Aging/*physiology; Animals; Animals, Newborn/anatomy & histology/growth & development/physiology; Feeding Behavior/*physiology; Female; Forelimb/*anatomy & histology/*physiology; *Horses/anatomy & histology/growth & development/physiology; Male |
Abstract |
REASONS FOR PERFORMING STUDY: Conformational traits are important in breeding, since they may be indicative for performance ability and susceptibility to injuries. OBJECTIVES: To study whether certain desired conformational traits of foals are related to lateralised behaviour while foraging and to the development of uneven feet. METHODS: Twenty-four Warmblood foals, born and raised at the same location, were studied for a year. Foraging behaviour was observed by means of weekly 10 min scan-sampling for 8 h. A preference test (PT) was developed to serve as a standardised tool to determine laterality. The foals were evaluated at age 3, 15, 27 and 55 weeks. The PT and distal limb conformation were used to study the relation between overall body conformation, laterality and the development of uneven feet. Pressure measurements were used to determine the loading patterns under the feet. RESULTS: About 50% of the foals developed a significant preference to protract the same limb systematically while grazing, which resulted in uneven feet and subsequently uneven loading patterns. Foals with relatively long limbs and small heads were predisposed to develop laterality and, consequently unevenness. CONCLUSIONS: Conformational traits may stimulate the development of laterality and therefore indirectly cause uneven feet. |
Address |
Derona Equine Performance Laboratory, Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 12, NL-3584 CM Utrecht, The Netherlands |
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English |
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0425-1644 |
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PMID:17228580 |
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no |
Call Number |
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Serial |
1774 |
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