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Author |
Shaw, E.B.; Houpt, K.A.; Holmes, D.F. |
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Title |
Body temperature and behaviour of mares during the last two weeks of pregnancy |
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Journal Article |
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Year |
1988 |
Publication |
Equine veterinary journal |
Abbreviated Journal |
Equine Vet J |
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Volume |
20 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
3 |
Pages |
199-202 |
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Keywords |
Animals; *Behavior, Animal; *Body Temperature; Circadian Rhythm; Eating; Female; Horses/*physiology; Labor, Obstetric/*physiology; Motor Activity; Pregnancy; Pregnancy, Animal/*physiology |
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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. |
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Department of Physiology, New York State College of Veterinary Medicine, Cornell University, Ithaca 14853 |
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0425-1644 |
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PMID:3402416 |
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refbase @ user @ |
Serial |
46 |
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Author |
Brennan, J.; Anderson, J. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Varying responses to feeding competition in a group of rhesus monkeys (Macaca mulatta) |
Type |
Journal Article |
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Year |
1988 |
Publication |
Primates |
Abbreviated Journal |
Primates |
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Volume |
29 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
3 |
Pages |
353-360 |
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Keywords |
Macaca mulatta – Dominance – Feeding – Agonistic behaviour – Snakes |
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Abstract |
The behaviour of members of a group of rhesus monkeys was observed in experimentally created, competitive feeding situations. Socially dominant members of the group tended to start eating before lower-ranking subjects, and generally ate more. Dominants sometimes used aggression to control access to food, but overall, intermediate-ranking monkeys were involved in most agonistic episodes. Non-dominant subjects improved their feeding performance when food was presented in three piles rather than one pile, often by snatching food and consuming it away from the pile. These general patterns were less evident when realistic snake models were placed on some of the food piles. Feeding was disrupted by the presence of snakes, but notably, subordinates risked feeding in these conditions. Piles containing preferred foods and snakes were eaten from, but a low-preference food (carrot) under snakes went untouched by all subjects. The results suggest that group-members evaluate potential risks and benefits of competing for a restricted resource, and that dominance status, while an important factor, is only one element in the equation. |
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refbase @ user @ |
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809 |
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Author |
Kozarovitskii, L.B. |
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[Further comment on the distinction between humans and animals] |
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Journal Article |
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Year |
1988 |
Publication |
Nauchnye Doklady Vysshei Shkoly. Biologicheskie Nauki |
Abbreviated Journal |
Nauchnye Doki Vyss Shkoly Biol Nauki |
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3 |
Pages |
42-45 |
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Animals; Consciousness; Evolution; Humans; Mental Processes; *Philosophy; Thinking |
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The problem of mind is considered in the aspect of natural scientific and philosophical problem of distinction between human and animal. The widespread confusion of the terms “rudiments”, “elements” of specifically human properties in animals and “biological prerequisites” of these properties are critically analysed. The idea is formulated according to which only in the process of anthropogenesis the rudiments of new social property--mind, conscience--could appear in the developing human beings. |
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Russian |
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Original Title |
Eshche raz o grani mezhdu chelovecheskim i zhivotnym |
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0470-4606 |
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Notes |
PMID:3382706 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2800 |
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Author |
de Waal, F.B.M.; Luttrell, L.M. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Mechanisms of social reciprocity in three primate species: Symmetrical relationship characteristics or cognition? |
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Journal Article |
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Year |
1988 |
Publication |
Ethology and Sociobiology |
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Volume |
9 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
2–4 |
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101-118 |
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Keywords |
Reciprocity; Agonistic intervention; Cognition; Chimpanzees; Macaques |
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Agonistic intervention behavior was observed in captive groups of chimpanzees (Pan troglodytes), rhesus monkeys (Macaca mulatta), and stumptail monkeys (M. arctoides). Reciprocity correlations of interventions were determined while removing from the data the effects of several symmetrical relationship characteristics, that is, matrillineal kinship, proximity relations, and same-sex combination. It was considered likely that if significant reciprocity persisted after controlling for these characteristics, the reciprocity was based on cognitive mechanisms. Statistical significance was tested by means of recently developed matrix permutation procedures. All three species exhibited significant reciprocity with regard to beneficial interventions, even after controlling for symmetrical traits. Harmful interventions were, however, reciprocal among chimpanzees only. This species showed a “revenge system”, that is, if A often intervened against B, B did the same to A. In contrast, both macaque species showed significantly inversed reciprocity in their harmful interventions: if A often intervened against B, B rarely intervened against A. Further analysis indicates that the strict hierarchy of macaques prevents them from achieving complete reciprocity. Compared to chimpanzees, macaques rarely intervene against higher ranking group members. The observed contrast can be partially explained on the basis of differences in available space, as indicated by a comparison of indoor and outdoor living conditions for the chimpanzee colony. Yet, even when such spatial factors are taken into account, substantial behavior differences between chimpanzees and macaques remain. |
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ISSN |
0162-3095 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5809 |
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Author |
Kirkpatrick, J. F.; Kasman, L. H.; Lasley,; B. L.; Turner, J. W. Jr. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Pregnancy Determination in Uncaptured Feral Horses |
Type |
Journal Article |
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Year |
1988 |
Publication |
Journal of Wildlife Management |
Abbreviated Journal |
J Wildl Manag |
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Volume |
52 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
2 |
Pages |
305-308 |
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The urinary excretion of estrone sulfate ($\text{E}{1}\text{S}$) by 25 free-roaming feral horses (Equus caballus) was measured by radioimmunoassay applied to extracts of urine-soaked soil. Twelve of 15 mares having $\text{E}{1}\text{S}$ concentrations >1.0 mg/mg creatinine (x = 2.64 +- 1.02 [SD]) produced foals. All 10 mares with $\text{E}{1}\text{S}$ concentrations <1.0 mg/mg creatinine (x = 0.44 +- 0.26) did not foal. Extracting urine from soil and measuring $\text{E}{1}\text{S}$ and creatinine can be used to determine pregnancy in free-roaming feral horses without the stress of capture or immobilization. |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2290 |
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Author |
Levin, L.E.; Grillet, M.E. |
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Title |
[Diversified leadership: a social solution of problems in schools of fish] |
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Journal Article |
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Year |
1988 |
Publication |
Acta Cientifica Venezolana |
Abbreviated Journal |
Acta Cient Venez |
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Volume |
39 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
2 |
Pages |
175-180 |
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Keywords |
Animals; Fishes; *Leadership; Reversal Learning/*physiology; *Social Behavior |
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Spanish |
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Liderazgo diversificado: una solucion social de problemas en el cardumen |
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0001-5504 |
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PMID:3251383 |
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2045 |
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Author |
Holzapfel, W.H.; Botha, S.J. |
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Title |
Physiology of Sporolactobacillus strains isolated from different habitats and the indication of in vitro antagonism against Bacillus species |
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Journal Article |
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Year |
1988 |
Publication |
International Journal of Food Microbiology |
Abbreviated Journal |
Int J Food Microbiol |
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7 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
2 |
Pages |
161-168 |
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Animals; Bacillaceae/isolation & purification/*physiology; Bacillus/*physiology; Cattle; *Ecology; Feces/*microbiology; Food Microbiology; Horses; Sewage; Sheep; Water Microbiology |
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In an ecological study only low numbers of Sporolactobacillus were found in habitats such as the faeces of herbivores, the rumen of cattle and the final waste water of an abattoir. Their presence in the final waste water of an abattoir indicates their possible association with food, and, more specifically, with meat. Differences were found in some physiological characteristics. One isolate (L2404) differed from the authentic Sporolactobacillus ATCC 15538 by its inability to ferment inulin, its growth in presence of 6.5% NaCl and in 0.2% tellurite, by the isomer(s) of lactic acid produced and the mol% G + G in the DNA. One Sporolactobacillus isolate (L2407) showed antagonism against Bacillus cereus, Bacillus cereus var, mycoides, Bacillus megaterium and Bacillus subtilis. |
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Department of Microbiology and Plant Pathology, University of Pretoria, Republic of South Africa |
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English |
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0168-1605 |
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PMID:3275317 |
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Equine Behaviour @ team @ |
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2675 |
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Author |
Black, J.M. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Preflight Signalling in Swans: A Mechanism for Group Cohesion and Flock Formation |
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Journal Article |
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Year |
1988 |
Publication |
Ethology |
Abbreviated Journal |
Ethology |
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79 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
2 |
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143-157 |
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Abstract The preflight behaviour of whooper swans Cygnus cygnus and Bewick's swans Cygnus columbianus bewickii was examined to determine the adaptive significance of the ritual. Analysis of the preflight sequence revealed that the rate of signalling became significantly faster as the time of takeoff approached. This provides the first quantitative evidence that a threshold of excitability is responsible for triggering synchronised flight in social units. Two ultimate and two proximate factors that affect this threshold were uncovered. They are: 1) Maintaining proximity to partners—flight was delayed by birds with non-attentive mates and signalling lasted on average four times longer than those whose mates showed more interest. 2) Maintaining flock cohesiveness—birds which performed signals for longer periods while swimming among uninterested birds were successful in attracting followers 61% of the time. 3) The bird's feeding performance related to dominance status—less successful feeders (potentially hungry birds), flew after little time and few signals. 4) The type of feeding opportunity at the eventual destination—birds which flew to provided feeds (nutritious barley) spent less time performing preflight signals than when they flew to forage on grass fields. |
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Blackwell Publishing Ltd |
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1439-0310 |
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Equine Behaviour @ team @ |
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5315 |
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Author |
Feh, C. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Social behaviour and relationships of Prezewalski horses in Dutch semi-reserves |
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Journal Article |
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Year |
1988 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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21 |
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1-2 |
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71-87 |
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A short-term study was made of 2 groups of Przewalski horses, a bachelor group of 4 juvenile stallions in Ooij Polder and a harem group of 1 stallion and 4 mares. All social interactions were recorded and the nearest and farthest neighbour was noted. Correspondence analysis was used to determine what parameters determined the relationships among the horses. There was a linear hierarchy among the bachelor stallions. The dominant stallion of the group was also the oldest. The hierarchy was not linear in the harem group, and the 3-year-old stallion was subordinate to the 5-year-old mares. He was also most likely to be farthest from other horses. The mares of the same age, who had also arrived in the park at the same time, tended to be one another's nearest neighbours. The frequency of aggression is higher among Przewalski horses than among domestic horses of similar ages. Correspondence analysis revealed that head-threats and other forms of aggression accounted for more of the variance in the data than any other behaviour, but submission, play and social interactions also contributed. |
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refbase @ user @ |
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764 |
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Author |
Keiper, R.R. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Social interactions of the Przewalski horse (Equus przewalskii Poliakov, 1881) herd at the Munich Zoo |
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Journal Article |
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1988 |
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Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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21 |
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1-2 |
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89-97 |
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Data were collected on 972 aggressions and 233 acts of mutual grooming in a herd of 9 Przewalski horses in the Hellabrunn Tierpark in Munich, West Germany. The herd was composed of 1 adult stallion, 5 adult mares and 3 foals. A distinct linear dominance hierarchy was present in the herd, with the stallion being the top-ranking animal. Age was significantly correlated with rank. Almost 40% of all aggressions consisted of herding actions by the stallion. Threats to bite (20% of all aggressions) and threats to kick (11.4%) were next in frequency of occurrence. Most mutual grooms (71%) involved grooming the front part of the body. Although mutual grooming may be used to appease higher-ranked animals, most grooming bouts were between related horses. Foals initiate 47.6% of all allogrooming. Mutual grooming may reduce weaning conflict between a mare and her foal or may result in female coalitions that defend against predators or aggression by the herd stallion. |
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refbase @ user @ |
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775 |
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