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Equine and Animal Cognition Reference Database

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Author Ellard, M.-E.; Crowell-Davis, S.L. url  doi
openurl 
  Title Evaluating equine dominance in draft mares Type Journal Article
  Year 1989 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.  
  Volume 24 Issue 1 Pages 55-75  
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  Abstract The social hierarchy of a herd of 12 draft mares was assessed using agonism in the field, paired-feeding tests and a group-feeding test. Results from the paired-feeding test correlated significantly, but imperfectly, with those from the field. Differential motivation among subjects for the feed and disruption of ambiguous relationships among mares reduced the reliability of the paired-feeding test as a measure of social dominance. Results from the group-feeding test did not correlate significantly with the field hierarchy and only a few mares ever ate from the bucket. Height, weight and age each correlated significantly with rank; a mare's tendency to remain alone did not. Total aggressive scores during the paired-feeding test correlated with rank. However, a high-ranking mare was no more aggressive to each of her subordinates than was a low-ranking mare. Rather, all mares aggressed more against individuals close in rank to themselves and with preferred field associates. In the field, mares associated most with other mares of similar rank.  
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  Notes Approved no  
  Call Number refbase @ user @ Serial 662  
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Author Houpt, K.A. url  openurl
  Title Investigating equine ingestive, maternal, and sexual behavior in the field and in the laboratory Type Journal Article
  Year 1991 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.  
  Volume 69 Issue 10 Pages 4161-4166  
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  Abstract Some of the techniques that may be used to study social, reproductive, and ingestive behavior in horses are described in this paper. One of the aspects of equine social behavior is the dominance hierarchy or patterns of agonistic behavior. Paired or group feeding from a single food source may be used to determine dominance hierarchies quickly. Focal animal studies of undisturbed groups of horses may also be used; this method takes longer, but may reveal affiliative as well as agonistic relationships among the horses. Reproductive behavior includes flehmen, the functional significance of which can be determined using combinations of field observations of harem groups and laboratory studies of stallions exposed to female urine or feces in the absence of the donor mare. Ingestive behavior may include food, salt, or water intake. Direct and indirect measurements of intake can be made and used to answer questions regarding the ability of horses to control their energy intake when the diet is diluted, the effect of feral equids on the ecology of an area, and the abilities of horses to compensate for dehydration and hypovolemia.  
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  Call Number refbase @ user @ Serial 667  
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Author Houpt, K.A.; Keiper, R. openurl 
  Title The position of the stallion in the equine dominance hierarchy of feral and domestic ponies. Type Journal Article
  Year 1982 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci  
  Volume 54 Issue 5 Pages 945-950  
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  Call Number refbase @ user @ Serial 668  
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Author Collery, L. openurl 
  Title Observations of equine animals under farm and feral conditions Type Journal Article
  Year 1974 Publication Equine veterinary journal Abbreviated Journal Equine Vet J  
  Volume 6 Issue 4 Pages 170-173  
  Keywords Aggression; Animals; Animals, Newborn; Breeding; Circadian Rhythm; Feeding Behavior; Female; Horses/*physiology; Housing, Animal; Humans; Male; Pregnancy; Puberty; Reproduction; Sexual Behavior, Animal; Social Dominance  
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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:4473340 Approved no  
  Call Number refbase @ user @ Serial 680  
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Author Keiper, R.R.; Sambraus, H.H. url  doi
openurl 
  Title The stability of equine dominance hierarchies and the effects of kinship, proximity and foaling status on hierarchy rank Type Journal Article
  Year 1986 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.  
  Volume 16 Issue 2 Pages 121-130  
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  Abstract Dominance hierarchies were determined in four bands of feral horses living on Assateague Island. The bands varied in size from 10 to 16 horses, and consisted of one stallion, several mares and their offspring. The animals ranged in age from less than 1 to over 18 years. Field observation of all social interactions during the summer of 1981 was used to determine dominance. 1981 hierarchies for three of the bands were compared with hierarchies determined for the same bands in 1978, and showed that hierarchies change over time. Age was significantly correlated with rank. Mares with foals did not rank any higher in the hierarchies than mares without foals. Kinship did not appear to have an effect on dominance rank either, since neither juvenile nor adult offspring ranks correlated with the ranks of their mothers. The band stallion was not the highest-ranking animal of any band, but the location of the stallion peripheral to the main body of the band, the nature of his interactions with band members, and his length of residence in the band may have contributed to his low rank.  
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  Call Number refbase @ user @ Serial 683  
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Author Knill, L.M.; Eagleton, R.D.; Harver, E. url  openurl
  Title Physical optics of the equine eye Type Journal Article
  Year 1977 Publication American Journal of Veterinary Research Abbreviated Journal Am J Vet Res  
  Volume 38 Issue 6 Pages 735-737  
  Keywords visual system function; Ocular Physiology  
  Abstract The equine eye was treated as a general lens system and calculations were done to determine image position in relation to the retina for objects at a distance of infinity, 100 m, and 1 m. The retina is 19.1 mm behind the posterior surface of the lens; therefore, the image appears 14.6 mm posterior to the retina at infinity and at 100 m, and 16.3 mm at 1-m distance on a horizontal axis. The animals studied were hyperopic. It is evident that the horse must move its head or eye, or both, for optimal visual acuity. At the same time, some objects in the total field of vision are imperceptible or indistinct.  
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  ISSN 00029645 (Issn) ISBN Medium  
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  Notes Cited By (since 1996): 1; Export Date: 15 May 2007; Source: Scopus; Language of Original Document: English; Correspondence Address: Knill, L.M. Approved no  
  Call Number refbase @ user @ Serial 852  
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Author Murphy, J.; Arkins, S. url  doi
openurl 
  Title Synthesizing what we know of equine learning behaviour Type Journal Article
  Year 2007 Publication Behavioural Processes Abbreviated Journal Behav. Process.  
  Volume 76 Issue Pages 57-60  
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  Call Number Serial 876  
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Author Douglas Rh, G.O. openurl 
  Title Development of the equine fetus and placenta Type Journal Article
  Year 1975 Publication Abbreviated Journal J Reprod Fert (Suppl)  
  Volume 23 Issue Pages 495-498  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1023  
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Author DREVEMO S et al, openurl 
  Title Equine locomotion: The analysis of linear and temporal stride characteristics of trotting standardbreds Type Journal Article
  Year 1980 Publication Abbreviated Journal Equine Vet J  
  Volume 12 Issue Pages 60-65  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1025  
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Author FRERICHS WM et al, openurl 
  Title Equine Piroplasmosis: Therapeutic trials of imidocarb dihydrochloride in horses and donkeys Type Journal Article
  Year 1973 Publication Abbreviated Journal Vet Rec  
  Volume 93 Issue Pages 73-75  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1095  
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