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Author BASHORE, T. L.; KEIPER, R.; TURNER ,J. W. JR; KIRKPATRICK J. F.
Title The accuracy of fixed-wing aerial surveys of feral horses on a coastal barrier island Type Journal Article
Year 1990 Publication Journal of coastal research Abbreviated Journal J. coast. res
Volume 6 Issue Pages 53-56
Keywords Accuracy; Airborne methods; Vegetation; Barrier islands; Maryland; Ground methods; United States; North America; America
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ISSN 0749-0208 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 2221
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Author Tomasello, M.
Title Cultural transmission in the tool use and communicatory signalling of chimpanzees? Type Book Chapter
Year 1990 Publication Language and Intelligence in Monkeys and Apes. Abbreviated Journal
Volume Issue Pages 274-311
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Publisher Cambridge University Press Place of Publication Cambridge Editor Parker,S.T.;Gibson,K.R.
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5267
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Author McGhee, J.R.; Mestecky, J.
Title In defence of mucosal surfaces. Development of novel vaccines for IgA responses protective at the portals of entry of microbial pathogens. Type Journal Article
Year 1990 Publication Abbreviated Journal Infect. Dis. Clin. North Am.
Volume 4 Issue 2 Pages 315-341
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5999
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Author Byrne, R.W.; Whiten, A.
Title Tactical deception in primates: the 1990 database Type Book Whole
Year 1990 Publication Primate Reports Abbreviated Journal Primate Rep.
Volume 27 Issue Pages 1-101
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Publisher German Primate Center Place of Publication Editor
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6172
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Author Petherick, J.C.; Rutter, S.M.
Title Quantifying motivation using a computer-controlled push-door Type Journal Article
Year 1990 Publication Applied Animal Behaviour Science Abbreviated Journal Appl. Anim. Behav. Sci.
Volume 27 Issue 1 Pages 159-167
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Abstract (up) A computer-controlled push-door system was designed and tested as a method for measuring motivation. Eleven domestic hens were trained to use the push-door to gain access to food. They were deprived of food for 12 h or 43 h on 12 occasions and the push-door was used to measure the amount of “work” (measured as force × time) that they performed to gain access to a food reward. When deprived of food for 12 h the hens took significantly longer (P<0.01) to reach the required threshold of work, than when deprived for 43 h. This difference arose from the amount of time that the hens spent not pushing at the door. The problems encountered with this system and such an approach to measuring motivation are discussed.
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ISSN 0168-1591 ISBN Medium
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 6165
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Author Kirkpatrick, J. F.; Lasley, B. L.; Shideler,S. E.
Title Urinary steroid evaluations to monitor ovarian function in exotic ungulates Type Journal Article
Year 1990 Publication Zoo Biology Abbreviated Journal Zoo Biol
Volume 9 Issue 5 Pages 341 - 348
Keywords Perissodactyla – ovulation – corpus luteum
Abstract (up) A direct enzyme immunoassay (EIA) for non-specific urinary progesterone (Po) metabolites, utilizing a non-specific monoclonal antibody against pregnanediol-3-glucuronide, was evaluated for the purpose of assessing luteal function in equids. Urinary pregnanediol-3-glucuronide (PdG) and immunoreactive PdG-like conjugate (iPdG) concentrations, indexed by creatinine, were compared to plasma Po concentrations in non-conceptive ovarian cycles through two ovulations in four mares. High-performance liquid chromatography (HPLC) of urine from lutealphase mares and a pregnant zebra revealed an absence of significant concentrations of PdG and the presence of at least three immunoreactive compounds, all of which were more polar than PdG. The concentration of iPdG in the mare ranged from a nadir of approximately 3 ng/mg Cr at the time of ovulation to nearly 400 ng/mg Cr at the mid-luteal-phase peak and paralleled plasma Po concentrations. This non-radiometric assay for iPdG permits the assessment of ovulation, luteal formation and function, and luteolysis in unprocessed urine samples from domestic mares. Data from a single zebra indicate this approach also will permit simplified and non-invasive longitudinal studies of ovarian function among a wide range of Equidae.
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Notes from Professor Hans Klingels Equine Reference List Approved yes
Call Number Serial 1274
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Author Hinrichs, K.; Watson, E.D.; Kenney, R.M.
Title Granulosa cell tumor in a mare with a functional contralateral ovary Type Journal Article
Year 1990 Publication Journal of the American Veterinary Medical Association Abbreviated Journal J Am Vet Med Assoc
Volume 197 Issue 8 Pages 1037-1038
Keywords Animals; Corpus Luteum/*physiopathology; Female; Granulosa Cell Tumor/pathology/physiopathology/*veterinary; Horse Diseases/*pathology/physiopathology; Horses; Ovarian Neoplasms/pathology/*veterinary; Ovary/*pathology/physiopathology
Abstract (up) A functional corpus luteum was found in the ovary contralateral to the ovary with a granulosa cell tumor in a 24-year-old Standardbred mare. The mare was ovariectomized because she was to be used as a jump mare for collection of semen from stallions. The blood concentration of progesterone was 2.2 ng/ml, and the luteal tissue progesterone concentration was 6.3 micrograms/mg. Atrophy of the contralateral ovary is one of the major signs used in diagnosis of granulosa cell tumor; however, our findings indicate that the ovary contralateral to a granulosa cell tumor is not invariably nonfunctional.
Address Department of Medicine, School of Veterinary Medicine, Tufts University, North Grafton, MA 01536
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Language English Summary Language Original Title
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ISSN 0003-1488 ISBN Medium
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Notes PMID:2243036 Approved no
Call Number Equine Behaviour @ team @ Serial 3802
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Author McCall, C.A.
Title A Review of Learning Behavior in Horses and its Application in Horse Training Type Journal Article
Year 1990 Publication Journal of Animal Science Abbreviated Journal J. Anim Sci.
Volume 68 Issue 1 Pages 75-81
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Abstract (up) A literature review of the equine learning research conducted in the past 20 yr revealed that the purpose of most of the studies was to determine whether horses respond to learning situations in the same way that other animals do. The results indicated that horses can discriminate many different types of stimuli, and they learn through stimulus-response- reinforcement chains. Most equine learning studies have utilized learning tasks depending on primary positive reinforcement to get the horses to work the tests. Yet, the majority of horse trainers use negative reinforcement more often than primary positive reinforcement in their training procedures. Therefore, past research often did not have a direct application to training methods commonly utilized in the horse industry. Research also demonstrated that 1) early experiences of horses can affect learning ability later, 2) equine memory is efficient and 3) concentrating learning mals in long training sessions decreases equine learning efficiency. Many factors that might affect equine learning ability and be applicable to training practices in the horse industry have not been thoroughly investigated; for example, interactions between nutrition and learning and between exercise and learning, the use of negative and secondary reinforcements in horse training, and the horse's ability to make few initial errors compared to its ability to eliminate errors as training progresses all require investigation in future equine learning studies. N1 -
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Notes Approved no
Call Number refbase @ user @ Serial 1992
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Author Byrne, R.W.; Whiten, A.; Henzi, S.P.
Title Social relationships of mountain baboons: Leadership and affiliation in a non-female-bonded monkey Type Journal Article
Year 1990 Publication American journal of primatology Abbreviated Journal Am. J. Primatol.
Volume 20 Issue 4 Pages 313-329
Keywords relationships; one-male groups; female-bonding; spacing; support; Papio ursinus; Papio hamadryas
Abstract (up) Abstract 10.1002/ajp.1350200409.abs Instead of close and differentiated relationships among adult females, the accepted norm for savanna baboons, groups of Drakensberg mountain baboons (Papio ursinus) showed strong affiliation of females towards a single male. The same male was usually the decision-making animal in controlling group movements. Lactating or pregnant females focused their grooming on this “leader” male, producing a radially patterned sociogram, as in the desert baboon (P. hamadryas); the leader male supported young animals in the group against aggression and protected them against external threats. Unlike typical savanna baboons, these mountain baboons rarely displayed approach-retreat or triadic interactions, and entirely lacked coalitions among adult females. Both groups studied were reproductively one-male; male-female relationships in one were like those in a unit of a hamadryas male at his peak, while the other group resembled the unit of an old hamadryas male, who still leads the group, with a male follower starting to build up a new unit and already monopolizing mating. In their mountain environment, where the low population density suggests conditions as harsh for baboons as in deserts, adults in these groups kept unusually large distances apart during ranging; kin tended to range apart, and spacing of adults was greatest at the end of the dry, winter season. These facts support the hypothesis that sparse food is responsible for convergence with hamadryas social organization. It is suggested that all baboons, though matrilocal, are better categorized as “cross-sex-bonded” than “female bonded”.
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Publisher Wiley Subscription Services, Inc., A Wiley Company Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1098-2345 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number Equine Behaviour @ team @ Serial 5309
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Author Sawaguchi, T.; Kudo, H.
Title Neocortical development and social structure in primates Type Journal Article
Year 1990 Publication Primates Abbreviated Journal Primates
Volume 31 Issue 2 Pages 283-289
Keywords Neocortex – Relative size – Allometry – Congeneric group – Social structure – Monogyny – Polygyny – Primates
Abstract (up) Abstract  The relationships between the relative size of the neocortex and differences in social structures were examined in prosimians and anthropoids. The relative size of the neocortex (RSN) of a given congeneric group in each superfamily of primates was measured based on the allometric relationships between neocortical volume and brain weight for each superfamily, to control phylogenetic affinity and the effects of brain size. In prosimians, “troop-making” congeneric groups (N=3) revealed a significantly larger RSN than solitary groups (N=6), and there was a significant, positive correlation between RSN and troop size. In the case of anthropoids, polygynous/frugivorous groups (N=5) revealed a significantly larger RSN than monogynous/frugivorous groups (N=8). Furthermore, a significant, positive correlation between RSN and troop size was found for frugivorous congeneric groups of the Ceboidea. These results suggest that neocortical development is associated with differences in social structure among primates.
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Notes Approved no
Call Number Equine Behaviour @ team @ Serial 4799
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