| Records |
| 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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English |
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| ISSN |
0425-1644 |
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| Notes |
PMID:3402416 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
46 |
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| Author |
Zentall, S.S.; Zentall, T.R. |
| Title |
Hyperactivity ratings: statistical regression provides an insufficient explanation of practice effects |
Type |
Journal Article |
| Year |
1986 |
Publication |
Journal of pediatric psychology |
Abbreviated Journal |
J Pediatr Psychol |
| Volume |
11 |
Issue |
3 |
Pages |
393-396 |
| Keywords |
Attention Deficit Disorder with Hyperactivity/*diagnosis; Child; Humans; Male; *Practice (Psychology); *Statistics |
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| ISSN |
0146-8693 |
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| Notes |
PMID:3772683 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
261 |
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| Author |
Zentall, S.S.; Zentall, T.R. |
| Title |
Optimal stimulation: a model of disordered activity and performance in normal and deviant children |
Type |
Journal Article |
| Year |
1983 |
Publication |
Psychological bulletin |
Abbreviated Journal |
Psychol Bull |
| Volume |
94 |
Issue |
3 |
Pages |
446-471 |
| Keywords |
*Arousal; Attention Deficit Disorder with Hyperactivity/*psychology; Autistic Disorder/*psychology; Behavior Therapy; Child; Humans |
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| ISSN |
0033-2909 |
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| Notes |
PMID:6657825 |
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no |
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refbase @ user @ |
Serial |
264 |
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| Author |
Shettleworth, S.J. |
| Title |
Stimulus relevance in the control of drinking and conditioned fear responses in domestic chicks (Gallus gallus) |
Type |
Journal Article |
| Year |
1972 |
Publication |
Journal of comparative and physiological psychology |
Abbreviated Journal |
J Comp Physiol Psychol |
| Volume |
80 |
Issue |
2 |
Pages |
175-198 |
| Keywords |
Acoustic Stimulation; Animals; Auditory Perception; Chickens; *Conditioning (Psychology); Conditioning, Classical; Discrimination Learning; *Drinking Behavior; Electroshock; *Fear; *Light; Motor Activity; Photic Stimulation; Punishment; Quinine; *Sound; Taste; Visual Perception |
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English |
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0021-9940 |
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| Notes |
PMID:5047826 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
390 |
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| Author |
Viscido, S.V.; Miller, M.; Wethey, D.S. |
| Title |
The dilemma of the selfish herd: the search for a realistic movement rule |
Type |
Journal Article |
| Year |
2002 |
Publication |
Journal of theoretical biology |
Abbreviated Journal |
J. Theor. Biol. |
| Volume |
217 |
Issue |
2 |
Pages |
183-194 |
| Keywords |
Animals; *Behavior, Animal; *Mass Behavior; Models, Biological; *Motor Activity; Predatory Behavior |
| Abstract |
The selfish herd hypothesis predicts that aggregations form because individuals move toward one another to minimize their own predation risk. The “dilemma of the selfish herd” is that movement rules that are easy for individuals to follow, fail to produce true aggregations, while rules that produce aggregations require individual behavior so complex that one may doubt most animals can follow them. If natural selection at the individual level is responsible for herding behavior, a solution to the dilemma must exist. Using computer simulations, we examined four different movement rules. Relative predation risk was different for all four movement rules (p<0.05). We defined three criteria for measuring the quality of a movement rule. A good movement rule should (a) be statistically likely to benefit an individual that follows it, (b) be something we can imagine most animals are capable of following, and (c) result in a centrally compact flock. The local crowded horizon rule, which allowed individuals to take the positions of many flock-mates into account, but decreased the influence of flock-mates with distance, best satisfied these criteria. The local crowded horizon rule was very sensitive to the animal's perceptive ability. Therefore, the animal's ability to detect its neighbors is an important factor in the dynamics of group formation. |
| Address |
Department of Biological Sciences, University of South Carolina, Columbia, SC, 29208, USA. viscido@u.washington.edu |
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English |
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Edition |
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| ISSN |
0022-5193 |
ISBN |
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Medium |
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Conference |
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| Notes |
PMID:12202112 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
554 |
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| Author |
Boyd, L. |
| Title |
Behavior problems of equids in zoos |
Type |
Journal Article |
| Year |
1986 |
Publication |
The Veterinary clinics of North America. Equine practice |
Abbreviated Journal |
Vet Clin North Am Equine Pract |
| Volume |
2 |
Issue |
3 |
Pages |
653-664 |
| Keywords |
Aerophagy/veterinary; Aggression/psychology; Animals; *Animals, Zoo; *Behavior, Animal; Coprophagia/psychology; Female; *Horses; Impotence/veterinary; Male; Mastication; Motor Activity; *Perissodactyla; Pregnancy; Sexual Behavior, Animal; Social Environment |
| Abstract |
Behavior problems in zoo equids commonly result from a failure to provide for needs basic to equine nature. Equids are gregarious, and failure to provide companions may result in pacing. Wild equids spend 60 to 70 per cent of their time grazing, and failure to provide ad libitum roughage contributes to the problems of pacing, cribbing, wood chewing, and coprophagia. Mimicking the normal processes of juvenile dispersal, bachelor-herd formation, and mate acquisition reduces the likelihood of agonistic and reproductive behavior problems. Infanticide can be avoided by introducing new stallions to herds containing only nonpregnant mares and older foals. |
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English |
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Edition |
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| ISSN |
0749-0739 |
ISBN |
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Medium |
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Conference |
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| Notes |
PMID:3492252 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
660 |
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| Author |
Dyer, F.C. |
| Title |
Animal behaviour: when it pays to waggle |
Type |
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| Year |
2002 |
Publication |
Nature |
Abbreviated Journal |
Nature |
| Volume |
419 |
Issue |
6910 |
Pages |
885-886 |
| Keywords |
*Animal Communication; Animals; Bees/*physiology; California; Dancing/physiology; Environment; Evolution; Female; Flowers/chemistry; *Food; Gravitation; Lighting; Motor Activity/*physiology; Odors; Seasons; Sunlight |
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English |
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Edition |
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| ISSN |
0028-0836 |
ISBN |
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Medium |
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Conference |
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| Notes |
PMID:12410290 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
769 |
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| Author |
Scheibe, K.M.; Gromann, C. |
| Title |
Application testing of a new three-dimensional acceleration measuring system with wireless data transfer (WAS) for behavior analysis |
Type |
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| Year |
2006 |
Publication |
Behavior research methods |
Abbreviated Journal |
Behav Res Methods |
| Volume |
38 |
Issue |
3 |
Pages |
427-433 |
| Keywords |
Acceleration; Animals; *Behavior, Animal; Cattle; Cattle Diseases/*diagnosis; Computer Communication Networks/*instrumentation; Forelimb/physiopathology; Fractals; Hindlimb/physiopathology; Horse Diseases/*diagnosis; Horses; Imaging, Three-Dimensional/instrumentation/methods/veterinary; Lameness, Animal/*diagnosis; Monitoring, Ambulatory/instrumentation/*methods; Motor Activity; Movement; Pattern Recognition, Automated/methods |
| Abstract |
A wireless acceleration measurement system was applied to free-moving cows and horses. Sensors were available as a collar and a flat box for measuring leg or trunk movements. Results were transmitted simultaneously by radio or stored in an 8-MB internal memory. As analytical procedures, frequency distributions with standard deviations, spectral analyses, and fractal analyses were applied. Bymeans of the collar sensor, basic behavior patterns (standing, grazing, walking, ruminating, drinking, and hay uptake) could be identified in cows. Lameness could be detected in cows and horses by means of the leg sensor. The portion of basic and harmonic spectral components was reduced; the fractal dimension was reduced. The system can be used for the detection and analysis of even small movements of free-moving humans or animals over several hours. It is convenient for the analysis of basic behaviors, emotional reactions, or events causing flight or fright or for comparing different housing elements, such as floors or fences. |
| Address |
Institute for Zoo and Wildlife Research, Berlin, Germany. kscheibe@izw-berlin.de |
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English |
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Edition |
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| ISSN |
1554-351X |
ISBN |
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| Notes |
PMID:17186752 |
Approved |
no |
| Call Number |
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Serial |
1775 |
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| Author |
Arnold, W.; Ruf, T.; Kuntz, R. |
| Title |
Seasonal adjustment of energy budget in a large wild mammal, the Przewalski horse (Equus ferus przewalskii) II. Energy expenditure |
Type |
Journal Article |
| Year |
2006 |
Publication |
The Journal of experimental biology |
Abbreviated Journal |
J Exp Biol |
| Volume |
209 |
Issue |
Pt 22 |
Pages |
4566-4573 |
| Keywords |
Animals; Animals, Wild/*physiology; Body Temperature; Body Temperature Regulation; Eating; *Energy Metabolism; Female; Heart Rate; Horses/*physiology; Male; Motor Activity; Pregnancy; Reproduction; *Seasons |
| Abstract |
Many large mammals show pronounced seasonal fluctuations of metabolic rate (MR). It has been argued, based on studies in ruminants, that this variation merely results from different levels of locomotor activity (LA), and heat increment of feeding (HI). However, a recent study in red deer (Cervus elaphus) identified a previously unknown mechanism in ungulates--nocturnal hypometabolism--that contributed significantly to reduced energy expenditure, mainly during late winter. The relative contribution of these different mechanisms to seasonal adjustments of MR is still unknown, however. Therefore, in the study presented here we quantified for the first time the independent contribution of thermoregulation, LA and HI to heart rate (f(H)) as a measure of MR in a free-roaming large ungulate, the Przewalski horse or Takhi (Equus ferus przewalskii Poljakow). f(H) varied periodically throughout the year with a twofold increase from a mean of 44 beats min(-1) during December and January to a spring peak of 89 beats min(-1) at the beginning of May. LA increased from 23% per day during December and January to a mean level of 53% per day during May, and declined again thereafter. Daily mean subcutaneous body temperature (T(s)) declined continuously during winter and reached a nadir at the beginning of April (annual range was 5.8 degrees C), well after the annual low of air temperature and LA. Lower T(s) during winter contributed considerably to the reduction in f(H). In addition to thermoregulation, f(H) was affected by reproduction, LA, HI and unexplained seasonal variation, presumably reflecting to some degree changes in organ mass. The observed phase relations of seasonal changes indicate that energy expenditure was not a consequence of energy uptake but is under endogenous control, preparing the organism well in advance of seasonal energetic demands. |
| Address |
Research Institute of Wildlife Ecology, University of Veterinary Medicine, Vienna, Savoyenstrasse 1, 1160 Vienna, Austria. walter.arnold@vu-wien.ac.at |
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English |
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Series Issue |
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Edition |
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0022-0949 |
ISBN |
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| Notes |
PMID:17079726 |
Approved |
no |
| Call Number |
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Serial |
1782 |
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| Author |
Kurvers, C.M.H.C.; van Weeren, P.R.; Rogers, C.W.; van Dierendonck, M.C. |
| Title |
Quantification of spontaneous locomotion activity in foals kept in pastures under various management conditions |
Type |
Journal Article |
| Year |
2006 |
Publication |
American journal of veterinary research |
Abbreviated Journal |
Am J Vet Res |
| Volume |
67 |
Issue |
7 |
Pages |
1212-1217 |
| Keywords |
Aging; Animal Husbandry; Animals; Female; Horses/*physiology; Male; Motor Activity/*physiology; Sex Characteristics |
| Abstract |
OBJECTIVE: To describe spontaneous locomotion activity of foals kept under various management conditions and assess the suitability of global positioning system (GPS) technology for recording foal activity. Animals-59 foals. PROCEDURES: During the foals' first 4 months of life, 921 observation periods (15 minutes each) were collected and analyzed for locomotion activities. The GPS system was evaluated by simultaneously carrying out field observations with a handheld computer. RESULTS: Foals spent 0.5% of total observed time cantering, 0.2% trotting, 10.7% walking, 32.0% grazing, 34.8% standing, and 21.6% lying down. Total observed daytime workload (velocity x distance) in the first month was approximately twice that in the following months. Locomotion activity decreased with increasing age. Colts had more activity than fillies in certain periods, and foals that were stabled for some portion of the day had compensatory locomotion activity, which was probably insufficient to reach the level of foals kept continually outside. The GPS recordings and handheld-computer observations were strongly correlated for canter, trot, and walk and moderately correlated for standing and lying. Correlation for grazing was low. CONCLUSIONS AND CLINICAL RELEVANCE: Results indicated that domestically managed foals, when kept 24 h/d at pasture, will exercise at a level comparable with feral foals. High workload during the first month of life might be important for conditioning the musculoskeletal system. The GPS technique accurately quantified canter, trot, and walk activities; less accurately indexed resting; and was unsuitable for grazing because of the wide array of velocities used while foraging. |
| Address |
Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, The Netherlands |
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English |
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Edition |
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| ISSN |
0002-9645 |
ISBN |
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| Notes |
PMID:16817745 |
Approved |
no |
| Call Number |
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Serial |
1786 |
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