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Equine and Animal Cognition Reference Database

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Author Short Rv, openurl 
  Title (down) The evolution of the horse Type Journal Article
  Year 1975 Publication Abbreviated Journal J Reprod Fert Suppl  
  Volume 23 Issue Pages 1-6  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1589  
Permanent link to this record
 
 
Author Syme, G.J.; Syme, L.A. url  openurl
  Title (down) The concept of spatial leadership in farm animals: An experiment with sheep Type Journal Article
  Year 1975 Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume 23 Issue Part 4 Pages 921-925  
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  Abstract The concept of spatial leadership as applied to farm animals is discussed with particular emphasis on methodological problems. Using three experimental procedures forced spatial leadership orders were measured in a group of Romney ewes. Comparisons between orders showed the effects of both the different experimental tasks and the social context on leadership structure. Both these variables were found to affect the orders obtained. The results are interpreted in terms of the utility of the concept of spatial leadership in domestic animals and the necessity for more systematic procedural investigations in this area.  
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  Notes Approved no  
  Call Number Serial 2039  
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Author Leuthold W, L.B. openurl 
  Title (down) Temporal patterns of reproduction in ungulates of Tsavo East National Park Kenya Type Journal Article
  Year 1975 Publication Abbreviated Journal E Afr Wildl J  
  Volume 13 Issue Pages 159-170  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1345  
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Author Bayley, P.; Martin, S.; Anson, M. openurl 
  Title (down) Temperature-jump circular dichroism: observation of chiroptical relaxation processes at millisecond time resolution Type Journal Article
  Year 1975 Publication Biochemical and Biophysical Research Communications Abbreviated Journal Biochem Biophys Res Commun  
  Volume 66 Issue 1 Pages 303-308  
  Keywords *Alcohol Oxidoreductases/metabolism; Animals; Circular Dichroism; Horses; Kinetics; Liver/enzymology; Mathematics; Protein Conformation; Temperature; Time Factors  
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  Language English Summary Language Original Title  
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  ISSN 0006-291X ISBN Medium  
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  Notes PMID:1172440 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3816  
Permanent link to this record
 
 
Author Klingel, H. openurl 
  Title (down) Social organization and reproduction in equids Type Journal Article
  Year 1975 Publication Journal of Reproduction and Fertility. Supplement Abbreviated Journal J Reprod Fertil Suppl  
  Volume Issue 23 Pages 7-11  
  Keywords Animals; Behavior, Animal; Female; Male; Perissodactyla/*physiology; Reproduction; *Sexual Behavior, Animal; Social Behavior; Territoriality  
  Abstract There are two distinct types of social organization and, accordingly, two types of mating systems in equids. In the horse, Plains zebra and Mountain zebra, the adults live in non-territorial and cohesive one-male groups and in stallion groups. The family stallions have exclusive mating rights which are respected by all others. In Grevy's zebra and in the African and Asiatic wild asses, the stallions are permanently territorial and have exclusive mating rights within their territories. Ecological and evolutionary aspects are discussed.  
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  Series Volume Series Issue Edition  
  ISSN 0449-3087 ISBN Medium  
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  Notes PMID:1060868 Approved no  
  Call Number Equine Behaviour @ team @ Serial 2303  
Permanent link to this record
 
 
Author Zimen, E. openurl 
  Title (down) Social dynamics of the wolf pack Type Book Chapter
  Year 1975 Publication The wild canids Abbreviated Journal  
  Volume Issue Pages 336-362  
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  Publisher Van Nostrand Reinhold Place of Publication New York Editor Fox, M.W.  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5231  
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Author Dunn, M.F.; Branlant, G. openurl 
  Title (down) Roles of zinc ion and reduced coenzyme in horse liver alcohol dehydrogenase catalysis. The mechanism of aldehyde activation Type Journal Article
  Year 1975 Publication Biochemistry Abbreviated Journal Biochemistry  
  Volume 14 Issue 14 Pages 3176-3182  
  Keywords *Alcohol Oxidoreductases/metabolism; Aldehydes/*pharmacology; Animals; Binding Sites; Enzyme Activation/drug effects; Horses; Hydrogen-Ion Concentration; Kinetics; Liver/enzymology; *NAD/analogs & derivatives/pharmacology; Oxidation-Reduction; Protein Binding; Spectrophotometry; Spectrophotometry, Ultraviolet; Temperature; *Zinc/pharmacology  
  Abstract 1,4,5,6-Tetrahydronicotinamide adenine dinucleotide (H2NADH) has been investigated as a reduced coenzyme analog in the reaction between trans-4-N,N-dimethylaminocinnamaldehyde (I) (lambdamax 398 nm, epsilonmax 3.15 X 10-4 M-minus 1 cm-minus 1) and the horse liver alcohol dehydrogenase-NADH complex. These equilibrium binding and temperature-jump kinetic studies establish the following. (i) Substitution of H2NADH for NADH limits reaction to the reversible formation of a new chromophoric species, lambdamax 468 nm, epsilonmax 5.8 x 10-4 M-minus 1 cm-minus 1. This chromophore is demonstrated to be structurally analogous to the transient intermediate formed during the reaction of I with the enzyme-NADH complex [Dunn, M. F., and Hutchison, J. S. (1973), Biochemistry 12, 4882]. (ii) The process of intermediate formation with the enzyme-NADH complex is independent of pH over the range 6.13-10.54. Although studies were limited to the pH range 5.98-8.72, a similar pH independence appears to hold for the H2NADH system. (iii) Within the ternary complex, I is bound within van der Waal's contact distance of the coenzyme nicotinamide ring. (iv) Formation of the transient intermediate does not involve covalent modification of coenzyme. Based on these findings, we conclude that zinc ion has a Lewis acid function in facilitating the chemical activation of the aldehyde carbonyl for reduction, and that reduced coenzyme plays a noncovalent effector role in this substrate activating step.  
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  ISSN 0006-2960 ISBN Medium  
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  Notes PMID:238585 Approved no  
  Call Number Equine Behaviour @ team @ Serial 3817  
Permanent link to this record
 
 
Author Feist, J.D.; McCullough, D.R. openurl 
  Title (down) Reproduction in feral horses Type Journal Article
  Year 1975 Publication Journal of Reproduction and Fertility. Supplement Abbreviated Journal J Reprod Fertil Suppl  
  Volume Issue 23 Pages 13-18  
  Keywords Age Factors; Animals; Female; Horses/*physiology; Leadership; Male; Maternal Behavior; Population; Reproduction; *Sexual Behavior, Animal; Social Dominance; Sucking Behavior  
  Abstract A behavioural study of feral horses was conducted on the Pryor Mountain Wild Horse Range in the western United States. All 270 horses on the Range were identified individually. The sex ratio was nearly balanced. Foal to adult female ratio was 43-2:100. Morality was concentrated among foals and old horses. Horses were organized as forty-four harem groups each with a dominant stallion, one to two immature stallions, one to three immature mares, one to three adult mares and their yearling and foal offspring, and 23 bachelor groups of one to eight stallions. Harem groups were quite stable year-round because of dominance and leadership by the stallions and group fidelity by mares and their offsring. Most changes occurred during the breeding season and involved immature females. Defeat of dominant stallions was infrequent. Immature males were tolerated because of their submissive behaviour. Bachelor stallion groups were inherently unstable. Mares came into heat after foaling in May/June, and were mated by harem stallions only.  
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  ISSN 0449-3087 ISBN Medium  
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  Notes PMID:1060766 Approved no  
  Call Number refbase @ user @ Serial 1964  
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Author Bannikov, A.G. openurl 
  Title (down) Recent status of the wild ass in Mongolia Type Journal Article
  Year 1975 Publication IUCN Bulletin Abbreviated Journal  
  Volume 6 Issue 4 Pages 16  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 2219  
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Author Smuts Gl, openurl 
  Title (down) Pre – and postnatal growth phenomena of Burchell's Zebra, Equus Burchelli Antiquorum Type Journal Article
  Year 1975 Publication Abbreviated Journal Koedoe  
  Volume 18 Issue Pages 69-102  
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  Notes from Professor Hans Klingels Equine Reference List Approved no  
  Call Number Serial 1613  
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