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Author |
Gruter, C.C. |
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Title |
Conflict and postconflict behaviour in captive black-and-white snub-nosed monkeys (Rhinopithecus bieti) |
Type |
Journal Article |
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Year |
2004 |
Publication |
Primates |
Abbreviated Journal |
Primates |
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Volume  |
45 |
Issue |
3 |
Pages |
197-200 |
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Keywords |
Aggression/psychology; Animals; Animals, Zoo/*psychology; Colobinae/*psychology; *Conflict (Psychology); Female; Male; Observation; Sex Factors; *Social Behavior; Time Factors |
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Abstract |
Black-and-white snub-nosed monkeys (Rhinopithecus bieti) have almost never been the subject of any behavioural observations in captivity. This study was aimed at providing preliminary information about agonistic and reconciliation behaviour in a group kept at the Kunming Institute of Zoology in China. Established procedures were used for this investigation (i.e., the postconflict/matched-control method and the time-rule method). Intra-group aggression rates were quite low. Postconflict affiliation as well as selective attraction of former opponents to each other following conflicts was demonstrated. Former opponents contacted each other earlier in postconflict periods than in matched-control periods. The average conciliatory tendency of all focal individuals combined was 54.5%. After an agonistic interaction, the first affiliative contact between former aggressors usually took place within the first minute. The behaviours most often shown as first affiliations after a conflict were body contact, mount, touch, and “hold-lumbar”, of which the latter is an explicit reconciliatory gesture. Furthermore, the adult male intervened non-aggressively in 84% of all conflicts (n=25) among the adult females. Overall, the patterns of aggression and reconciliation observed in R. bieti bear many of the traits that characterise tolerant primate species. |
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Anthropologisches Institut und Museum, Universitat Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland. ccgrueter@bluewin.ch |
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0032-8332 |
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PMID:15042414 |
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Call Number |
refbase @ user @ |
Serial |
2884 |
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Author |
Overli, O.; Korzan, W.J.; Hoglund, E.; Winberg, S.; Bollig, H.; Watt, M.; Forster, G.L.; Barton, B.A.; OVerli, E.; Renner, K.J.; Summers, C.H. |
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Title |
Stress coping style predicts aggression and social dominance in rainbow trout |
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Journal Article |
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Year |
2004 |
Publication |
Hormones and Behavior |
Abbreviated Journal |
Horm Behav |
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Volume |
45 |
Issue |
4 |
Pages |
235-241 |
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Keywords |
Adaptation, Psychological/physiology; Aggression/*physiology; Animals; *Dominance-Subordination; Female; *Hierarchy, Social; Hydrocortisone/blood; Individuality; Male; Matched-Pair Analysis; Oncorhynchus mykiss/*physiology; Stress/*physiopathology |
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Social stress is frequently used as a model for studying the neuroendocrine mechanisms underlying stress-induced behavioral inhibition, depression, and fear conditioning. It has previously been shown that social subordination may result in increased glucocorticoid release and changes in brain signaling systems. However, it is still an open question which neuroendocrine and behavioral differences are causes, and which are consequences of social status. Using juvenile rainbow trout of similar size and with no apparent differences in social history, we demonstrate that the ability to win fights for social dominance can be predicted from the duration of a behavioral response to stress, in this case appetite inhibition after transfer to a new environment. Moreover, stress responsiveness in terms of confinement-induced changes in plasma cortisol was negatively correlated to aggressive behavior. Fish that exhibited lower cortisol responses to a standardized confinement test were markedly more aggressive when being placed in a dominant social position later in the study. These findings support the view that distinct behavioral-physiological stress coping styles are present in teleost fish, and these coping characteristics influence both social rank and levels of aggression. |
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Biology Department and Neuroscience Group, University of South Dakota, Vermillion, SD 57069, USA. oyvind.overli@bio.uio.no |
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0018-506X |
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PMID:15053939 |
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Equine Behaviour @ team @ |
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4192 |
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Author |
Nicol, C.J.; Potzsch, C.; Lewis, K.; Green, L.E. |
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Title |
Matched concurrent case-control study of risk factors for feather pecking in hens on free-range commercial farms in the UK |
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Journal Article |
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Year |
2003 |
Publication |
British poultry science |
Abbreviated Journal |
Br Poult Sci |
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Volume |
44 |
Issue |
4 |
Pages |
515-523 |
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Keywords |
*Aggression; Analysis of Variance; Animal Husbandry/methods; Animals; Case-Control Studies; Chickens/*physiology; Feathers; Female; Multivariate Analysis; Odds Ratio; Regression Analysis; Species Specificity |
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1. The aim of the study was to compare the management and husbandry of free-range flocks in the UK where feather pecking was either present (case) or absent (control). 2. One hundred flocks were enrolled into a concurrent case-control study: 50 where birds had recently started feather pecking, and 50 matched control flocks where birds of the same age had not started feather pecking. 3. Information was obtained from a detailed interview with the flock manager, and by direct inspection of the flock, house and range. 4. Initial univariate analyses revealed that case flocks were more likely to comprise ISA Brown than Lohmann, were more likely to be restricted from litter areas to prevent floor eggs, and were less likely to use the outside range. 5. Cluster analysis indicated that feather pecking was not associated with any particular husbandry system. 6. The only influential risk factor significant in the multivariable conditional logistic regression analysis was use of the outdoor range. The risk of feather pecking was reduced 9-fold in flocks where more than 20% of birds used the range on sunny days (odds ratio = 0.12). Use of the range was positively associated with the presence of trees and/or hedges on the range. |
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Department of Clinical Veterinary Science, University of Bristol, England. c.j.nicol@bris.ac.uk |
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0007-1668 |
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PMID:14584840 |
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no |
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Call Number |
refbase @ user @ |
Serial |
79 |
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Author |
Albentosa, M.J.; Kjaer, J.B.; Nicol, C.J. |
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Title |
Strain and age differences in behaviour, fear response and pecking tendency in laying hens |
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Journal Article |
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Year |
2003 |
Publication |
British poultry science |
Abbreviated Journal |
Br Poult Sci |
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Volume |
44 |
Issue |
3 |
Pages |
333-344 |
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Keywords |
Age Factors; Aggression/*physiology; Animal Husbandry; Animals; *Behavior, Animal; Breeding; Chickens/genetics/*physiology; Fear/*physiology; Feathers/*injuries; Female; Housing, Animal; Population Density; Social Behavior |
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1. Behaviours associated with a high or low tendency to feather peck could be used as predictors of feather pecking behaviour in selective breeding programmes. This study investigated how strain and age at testing influenced responses in behavioural tests. 2. Four layer-type strains (ISA Brown, Columbian Blacktail, Ixworth and a high feather pecking (HP) and a low feather pecking (LP) line of White Leghorn) were reared in 6 same-strain/line pens of 8 birds from one day old. Birds in half the pens were given an open field test, a novel object test and a test with loose feather bundles between 4 and 12 weeks of age and a tonic immobility (TI) test at 13 weeks of age. All pens were tested with fixed feather bundles at 26 weeks, and undisturbed behaviour in the home pens was videoed at 1 and 27 weeks of age. Daily records of plumage damage were used as an indicator of feather pecking activity in the home pens. 3. Strain did not influence novel object test, open field test or loose feather test behaviour, although age effects in all three tests indicated a reduction in fearfulness and/or an increase in exploratory behaviour with increasing age. 4. White Leghorns showed longer TI durations than the other strains but less pecking at fixed feather bundles than ISA Browns and Columbian Blacktails. 5. There were few associations between behaviour in the 5 different tests, indicating that birds did not have overall behavioural traits that were consistent across different contexts. This suggests hens cannot easily be categorised into different behavioural 'types', based on their test responses and casts doubt on the usefulness of tests as predictors of feather pecking. |
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Centre for Behavioural Biology, Division of Farm Animal Science, University of Bristol, Langford, Bristol, England. MAlbentosa@lincoln.ac.uk |
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0007-1668 |
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Notes |
PMID:13677322 |
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Call Number |
refbase @ user @ |
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80 |
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Author |
Judge, P.G.; de Waal, F.B.; Paul, K.S.; Gordon, T.P. |
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Title |
Removal of a trauma-inflicting alpha matriline from a group of rhesus macaques to control severe wounding |
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Journal Article |
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Year |
1994 |
Publication |
Laboratory animal science |
Abbreviated Journal |
Lab Anim Sci |
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Volume |
44 |
Issue |
4 |
Pages |
344-350 |
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Keywords |
*Aggression; Animals; Female; *Macaca mulatta; Male; *Monkey Diseases; *Social Dominance; Wounds and Injuries/epidemiology/prevention & control/*veterinary |
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Abstract |
Wounding in an 83-member group of rhesus macaques (Macaca mulatta) housed at the Yerkes Regional Primate Research Center Field Station became excessive to the point that intervention was deemed necessary. When observations indicated that three females from the group's alpha matriline were principally responsible for the wounding, the matriline (N = 7) was removed from the group. This study was conducted to document an atypical pattern of wounding in this group and to evaluate the effectiveness of removal as a procedure for controlling injuries. The aggression rates of 21 adult subjects and the wounds of all group members were recorded before and after the removal procedure and compared with those in a similar-sized group. Removing the alpha matriline did not alter aggression rates in the group or the rank order among the remaining matrilines. Aggression rates in the experimental group were also not significantly different from those in the comparison group before or after the removal. With the alpha matriline present, wounding levels in the group were significantly higher than those in the comparison group. After removal of the matriline, the frequency of wounds decreased significantly to levels similar to those of the comparison group. The pattern of excess wounding attributed to the extracted alpha females was idiosyncratic, involving removal of large patches of skin from the hindquarters of adult females or removal of the distal portion of the fingers, toes, or tail from juveniles.(ABSTRACT TRUNCATED AT 250 WORDS) |
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Yerkes Regional Primate Research Center, Emory University, Atlanta, GA 30329 |
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0023-6764 |
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PMID:7983846 |
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Call Number |
refbase @ user @ |
Serial |
207 |
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Author |
de Waal, F.B. |
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Title |
The organization of agonistic relations within two captive groups of Java-monkeys (Macaca fascicularis) |
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Journal Article |
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Year |
1977 |
Publication |
Zeitschrift für Tierpsychologie |
Abbreviated Journal |
Z. Tierpsychol. |
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Volume |
44 |
Issue |
3 |
Pages |
225-282 |
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Keywords |
Age Factors; Aggression; Animals; Behavior, Animal/*physiology; Competitive Behavior/*physiology; Fear; Female; Haplorhini; Humans; Macaca/*physiology; Macaca fascicularis/*physiology; Male; Sex Factors; Social Behavior; Social Dominance |
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Abstract |
The paper offers a detailed quantitative descripition of the distribution of agonistic activities over the members of two groups of Java-monkeys (Macaca fascicularis). These groups lived in captivity and were well-established: i.e. they had an extensive network of genealogical relationships. The study pays special attention to agonistic interactions with three or more participants. Its main purpose is an analysis of the way dyadic agonistic relations (e.g. dominance relations) are affected by third group members and the relations among these. The paper presents data on the ontogeny of 'dependent dominance', the 'control role' of the alpha-male, and the functions of different types of alliances. |
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0044-3573 |
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PMID:412345 |
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refbase @ user @ |
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213 |
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Author |
Fuentes, A.; Malone, N.; Sanz, C.; Matheson, M.; Vaughan, L. |
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Title |
Conflict and post-conflict behavior in a small group of chimpanzees |
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Journal Article |
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Year |
2002 |
Publication |
Primates |
Abbreviated Journal |
Primates |
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Volume |
43 |
Issue |
3 |
Pages |
223-235 |
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Keywords |
Aggression; Animals; *Conflict (Psychology); Female; Housing, Animal; Male; Pan troglodytes/*psychology; *Social Behavior |
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Abstract |
Chimpanzee research plays a central role in the discussions of conflict negotiation. Reconciliation, or the attraction and affiliation of former opponents following conflict, has been proposed as a central element of conflict negotiation in chimpanzees and various other taxa. In an attempt to expand the database of chimpanzee conflict resolution, conflict and post-conflict behavior were recorded for a small group of socially housed chimpanzees at the Chimpanzee and Human Communication Institute, at Central Washington University. Data were collected over six 6-week periods between 1997 and 2000, for a total of 840 hours of observation, resulting in a substantial post-conflict (PC) and matched control (MC) data set. The data demonstrate this group's tendencies to maintain visual contact and closer proximity after conflicts. Dyadic corrected conciliatory tendencies ranged between 0 – 37.5% and averaged 17.25% across all dyads. Individual corrected conciliatory tendencies ranged between 5.8 and 32%. The results of this study combined with recent publications on captive and free-ranging chimpanzee post-conflict behavior suggest that variation in post-conflict behavior may be important to our understanding of chimpanzee conflict negotiation, and may also have implications for the design and management of captive chimpanzee enclosures and social groups, respectively. |
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Department of Anthropology, Notre Dame University, Notre Dame, Indiana 46556-5639, USA. anthro@nd.edu |
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0032-8332 |
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PMID:12145403 |
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refbase @ user @ |
Serial |
2885 |
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Author |
Aureli, F.; de Waal, F.B. |
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Inhibition of social behavior in chimpanzees under high-density conditions |
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Journal Article |
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Year |
1997 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
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Volume |
41 |
Issue |
3 |
Pages |
213-228 |
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Keywords |
Aggression/*psychology; Animals; *Behavior, Animal; *Crowding; Female; Male; Pan troglodytes/*psychology; Population Density; *Social Environment; Stress, Psychological |
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Abstract |
This is the first study to investigate the short-term effects of high population density on captive chimpanzees (Pan troglodytes). Subjects of the study were 45 chimpanzees living in five different groups at the Yerkes Regional Primate Research Center. The groups were observed under two conditions: 1) when they had access to both the indoor and outdoor sections of their enclosures; 2) during cold days when they were locked into the indoor runs, which reduced the available space by more than half. Under the high-density condition, allogrooming and submissive greetings decreased, but juvenile play increased. Remarkably, the rate of various forms of agonistic behavior, such as aggression, bluff charge, bluff display, and hooting, occurred less frequently under the high-density condition. This general decrease in adult social activity, including agonistic behavior, can be interpreted as an inhibition strategy to reduce opportunities for conflict when interindividual distances are reduced. This strategy is probably effective only in the short run, however. Behavioral indicators of anxiety, such as rough scratching and yawning, showed elevated rates, suggesting increased social tension under the high-density condition. |
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Yerkes Regional Primate Research Center, Emory University, Atlanta, GA 30322, USA |
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0275-2565 |
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PMID:9057966 |
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Call Number |
refbase @ user @ |
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203 |
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Author |
Araba, B.D.; Crowell-Davis, S.L. |
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Title |
Dominance relationships and aggression of foals (Equus caballus) |
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Journal Article |
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Year |
1994 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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41 |
Issue |
1-2 |
Pages |
1-25 |
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aggression; dominance; horse; Equus caballus |
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Studied a herd of 15 Belgian brood-mares and 10 foals. Specific aspects of social structure studied were dominance-subordinance relationships, preferred associates, social spacing, aggression rates, the frequency of aggressions administered down the dominance hierarchy, and interactive play bouts. The rank order of the foals, both before and after weaning, was positively correlated with the rank order of their dams. There was also a significant relationship between a foal's rank and its total aggression or aggression rate per subordinate post-weaning. Higher ranking foals had higher rates of aggression. Over 80% of threats were directed down the dominance hierachy. The play-rank order of the foals, scored by the number of times foal left a play bout, was not significantly correlated with the rank order as scored by agonistic interactions. -from Authors |
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Dept Anatomy and Radiology, Univ of Georgia, Athens, GA, USA |
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01681591 (Issn) |
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refbase @ user @ |
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790 |
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Author |
Barber, J.A.; Crowell-Davis, S.L. |
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Title |
Maternal behavior of Belgian (Equus caballus) mares |
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Journal Article |
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Year |
1994 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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Volume |
41 |
Issue |
3-4 |
Pages |
161-189 |
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Keywords |
Belgian; Draft horse; Ontogeny; Maternal aggression; Maternal behavior; Nursing behavior; Recumbency response |
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The relationship between ten Belgian mares and their offspring was studied from the first day of foal life to 17 weeks of age. Mares and foals spent more time at greater distances from each other as foals matured. Mares exhibited the recumbency response, being in closer proximity to their foals when foals were recumbent than when they were upright. Foals initiated the majority of nursing bouts. Frequency and duration of nursing bouts and percentage of time resting recumbently declined as foals matured. Foals also terminated the their foals, and they were most likely to do so in the first month of foal life. Maternal initiation of nursing. There was usually no discernible foal response to maternal aggression. Little difference between maternal behavior directed towards colts and fillies was found for all aspects of the study. Maternal behavior in the Belgian draft horse was similar to that reported for other equid breeds. |
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Equine Behaviour @ team @ |
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2268 |
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