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Author Fiske, J.C.; Potter, G.D.
Title Discrimination reversal learning in yearling horses Type Journal Article
Year 1979 Publication J. Anim. Sci. Abbreviated Journal (down) J. Anim. Sci.
Volume 49 Issue 2 Pages 583-588
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Abstract Twenty-six yearling horses were tested on a serial reversal learning discrimination combining spatial and brightness cues. An original discrimination of rewarded or nonrewarded stimuli was made followed by 20 daily reversals for position/brightness discrimination. Learning criteria were defined as 11 out of 12 correct, with the last eight responses all correct. Each horse was allowed 30 trials per discrimination to achieve criteria. Mean errors (ME) and mean trials (MT) required to achieve criteria were computed for each horse. A relative learning ability index (LAI) was calculated by the formula 1000/MT/ME. A daily emotionality score, based on a scale of one (tranquil) to six (very excitable) was assigned each horse each day after testing and a mean computed for each horse. A single subjective trainability score, based on a scale of one (difficult to train) to six (easy to train) was obtained for each horse from an independent trainer. Linear regression analyses for all 26 horses revealed a reduction in MT and ME (P<.01) over the 21-day test period indicating evidence of learning to learn. Differences (P<.05) were evident between sexes for MT and ME. Significant correlations between trainability scores and learning ability indices MT, ME, and LAI were evident for colts and geldings but not for fillies. Pooled data showed significant correlations between ME and trainability. There was a negative correlation (P<.05) between emotionality and trainability scores for all 26 horses, although the filly group did not exhibit significant correlation between these parameters.
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Notes Cited By (since 1996): 31; Export Date: 24 October 2008 Approved no
Call Number Admin @ knut @ Serial 4583
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Author Wilson, M.T.; Silvestrini, M.C.; Morpurgo, L.; Brunori, M.
Title Electron transfer kinetics between Rhus vernicifera stellacyanin and cytochrome c (horse heart cytochrome c and Pseudomonas cytochrome c551) Type Journal Article
Year 1979 Publication Journal of Inorganic Biochemistry Abbreviated Journal (down) J Inorg Biochem
Volume 11 Issue 2 Pages 95-100
Keywords Animals; Copper; Cytochrome c Group/*metabolism; Electron Transport; Kinetics; Metalloproteins/*metabolism; Plant Proteins/*metabolism; *Plants, Toxic; Pseudomonas aeruginosa/*metabolism; Toxicodendron/*metabolism
Abstract The electron transfer reactions between Rhus vernicifera stellacyanin and either horse heart cytochrome c or Pseudomonas aeruginosa cytochrome c551 were investigated by rapid reaction techniques. The time course of electron transfer is monophasic under all conditions, and thus consistent with a simple formulation of the reaction. Both stopped-flow and temperature-jump experiments yield equilibrium constants in reasonable agreement with values calculated from the redox potentials. The differences in reaction rate between the two cytochromes and stellacyanin are discussed in terms of the Marcus theory.
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ISSN 0162-0134 ISBN Medium
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Notes PMID:228006 Approved no
Call Number refbase @ user @ Serial 3879
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Author OTT EA et al,
Title Acceptability of dried citrus pulp by horses Type Journal Article
Year 1979 Publication Abbreviated Journal (down) J Animal Sci
Volume 49 Issue Pages 983-987
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1442
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Author Asa, C.S.; Goldfoot, D.A.; Ginther, O.J.
Title Sociosexual behavior and the ovulatory cycle of ponies (Equus caballus) observed in harem groups Type Journal Article
Year 1979 Publication Hormones and Behavior Abbreviated Journal (down) Horm Behav
Volume 13 Issue 1 Pages 49-65
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Abstract Observations of sociosexual behavior of adult ponies, made on two harem groups (each comprised of one vasectomized male and three females), were correlated with follicular development and ovulation for a total of 15 cycles (minimum of 2 cycles per female). Mean cycle length (interovulatory interval) was found to be 19.7 days, with behavioral estrus lasting 7-8 days (5.5 days preovulatory; 2.3 days postovulatory). Estrous females typically showed increased frequencies of approaching and following the stallion, urinating, presenting, clitoral winking, and tail raising. Approaching and following the stallion appeared earlier and persisted longer than other estrous responses. Deviations from the modal estrous pattern included cycles with subestrus, continual estrus, behavioral estrus in the absence of ovulation, and displays of female mounting. Dominance tests revealed that a mare's status was unaffected by the phases of the estrous cycle. The presence of more than one estrous female affected the copulatory performance of both stallions, most notably in reduced latencies to first mount, intromission, and ejaculation, in spite of differences between the stallions in sexual vigor. Each stallion usually selected the dominant mare for copulation when there were multiple estrous females present, but mounts were not displayed exclusively to one female per test. The social testing situation made apparent the importance of use of space in sociosexual communication in this species, particularly in avoidance of the stallion by diestrous mares and standing alone or in proximity to him by estrous mares.
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ISSN 0018-506x ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5363
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Author Eisenmann V,
Title Les métapodes d`Equus sensu lato. Type Journal Article
Year 1979 Publication Abbreviated Journal (down) Géobios
Volume 12 Issue Pages 863-886
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1050
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Author [No authors listed]
Title International Conference on Environmental Cadmium: an overview Type Conference Article
Year 1979 Publication Environmental Health Perspectives Abbreviated Journal (down) Environ Health Perspect
Volume 28 Issue Pages 297-30
Keywords Animals; Cadmium/*toxicity; Cadmium Poisoning/metabolism; Congresses; Ecology; Environmental Exposure; Environmental Pollutants/*toxicity; Female; Forecasting; Haplorhini; Horses; Humans; Rats; Waste Disposal, Fluid
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ISSN 0091-6765 ISBN Medium
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Notes PMID:39745 Approved no
Call Number Equine Behaviour @ team @ Serial 2694
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Author Graham, M.; Letz, R.
Title Within-species variation in the development of ultrasonic signaling of preweanling rats Type Journal Article
Year 1979 Publication Developmental Psychobiology Abbreviated Journal (down) Dev Psychobiol
Volume 12 Issue 2 Pages 129-136
Keywords Animals; *Animals, Newborn; Animals, Suckling; Body Weight; Cold/adverse effects; Environment; Genotype; Individuality; Object Attachment; Rats; Stress/*physiopathology; Ultrasonics; *Vocalization, Animal
Abstract The development of litter and individual differences in the rate of ultrasonic signaling of neonatal rats was studied. Systematic variations among litters and individuals emerged, without differential treatment. These differences were not correlated with variations in general development as indexed by body weight. Two experiments using a cross-fostering design showed that litter differences developed independently of variations in postnatal environment. These results indicate that the variations among litters in ultrasound rate have a prenatal, possibly genetic, etiology and may represent reliable indicants of response to environmental stress.
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ISSN 0012-1630 ISBN Medium
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Notes PMID:456751 Approved no
Call Number Equine Behaviour @ team @ Serial 4172
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Author Tschanz B,
Title Sozialverhalten beim Camarguepferd – Dokumentierverhalten bei Hengsten (Freilandaufnahmen) Type
Year 1979 Publication Abbreviated Journal (down) D 1284 Publ. Wiss. Film
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1663
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Author Mori, U.
Title Ecological and sociological studies of gelada baboons. Individual relationships within a unit Type Journal Article
Year 1979 Publication Contributions to Primatology Abbreviated Journal (down) Contrib Primatol
Volume 16 Issue Pages 93-124
Keywords Animals; Female; Grooming; *Haplorhini; *Leadership; Male; Paternal Behavior; *Social Behavior; *Theropithecus
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ISSN 0301-4231 ISBN Medium
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Notes PMID:101345 Approved no
Call Number Serial 2046
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Author Mori, U.
Title Ecological and sociological studies of gelada baboons. Inter-unit relationships Type Journal Article
Year 1979 Publication Contributions to Primatology Abbreviated Journal (down) Contrib Primatol
Volume 16 Issue Pages 83-92
Keywords Animals; Female; *Haplorhini; Leadership; Sex Factors; *Social Behavior; Social Distance; *Theropithecus
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ISSN 0301-4231 ISBN Medium
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Notes PMID:101344 Approved no
Call Number Serial 2047
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