| Records |
| 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 |
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 |
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Serial |
1274 |
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| Author |
Wiesner, J.; V. Hegel, G. |
| Title |
Zur Immobilisation von Wildequiden mit STH 2130 und Tiletamin/Zolazepam |
Type |
Journal Article |
| Year |
1990 |
Publication |
Tierärtzliche Praxis |
Abbreviated Journal |
Tierärzl Prax |
| Volume |
18 |
Issue |
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Pages |
151-154 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
yes |
| Call Number |
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Serial |
1707 |
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| Author |
Houpt, K.A. |
| Title |
Ingestive behavior |
Type |
Journal Article |
| Year |
1990 |
Publication |
The Veterinary clinics of North America. Equine practice |
Abbreviated Journal |
Vet Clin North Am Equine Pract |
| Volume |
6 |
Issue |
2 |
Pages |
319-337 |
| Keywords |
Animals; Eating/*physiology; Feeding Behavior/*physiology; Horses/*physiology |
| Abstract |
In summary, horses spend 60% or more of their time eating when grazing or when feed is available free choice. Grasses are their preferred food, but they supplement the grass with herbs and woody plants. Sweetened mixtures of oats and corn are the most preferred concentrate. Horses can increase or decrease the time spent eating and amount eaten to maintain caloric intake. Their intake is stimulated by drugs such as diazepam and by the presence of other horses. Horses stop eating when gastric osmolality increases; increases in plasma osmolality, protein, and glucose accompany digestion. Foals eat several times an hour and begin sampling solid food at the same time that their dam is eating. Several areas of particular importance to the equine industry have not been investigated. These areas include the effect of exercise on short- and long-term food intake and the influence of reproductive state on the feeding of mares. |
| Address |
Department of Physiology, New York State College of Veterinary Medicine, Cornell University, Ithaca |
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English |
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| ISSN |
0749-0739 |
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| Notes |
PMID:2202495 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
42 |
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| Author |
Potter, G.D.; Yeates, B.F. |
| Title |
Behavioral principles of training and management |
Type |
Journal Article |
| Year |
1990 |
Publication |
The Horse, 2nd Edn |
Abbreviated Journal |
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Issue |
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Pages |
665-682 |
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| Notes |
Cited By (since 1996): 4; Export Date: 21 October 2008 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
4540 |
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| Author |
Heyes, C.M.; Dawson, G.R. |
| Title |
A demonstration of observational learning in rats using a bidirectional control |
Type |
Journal Article |
| Year |
1990 |
Publication |
Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology |
Abbreviated Journal |
Q J Exp Psychol B |
| Volume |
42 |
Issue |
1 |
Pages |
59-71 |
| Keywords |
appetite; attention; imitation; problem solving; psychomotor performance; Appetitive Behavior; Attention; Imitative Behavior; Problem Solving; Psychomotor Performance |
| Abstract |
Hungry rats observed a conspecific demonstrator pushing a single manipulandum, a joystick, to the right or to the left for food reward and were then allowed access to the joystick from a different orientation. The effects of right-pushing vs left-pushing observation experience on (1) response acquisition, (2) reversal of a left-right discrimination, and (3) responding in extinction, were examined. Rats that had observed left-pushing made more left responses during acquisition than rats that had observed right-pushing, and rats that had observed demonstrators pushing in the direction that had previously been reinforced took longer to reach criterion reversal and made more responses in extinction than rats that had observed demonstrators pushing in the opposite direction to that previously reinforced. These results provide evidence that rats are capable of learning a response, or a response-reinforcer contingency, through conspecific observation. |
| Address |
University of Cambridge, U.K. |
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02724995 (Issn) |
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| Notes |
Cited By (since 1996): 49; Export Date: 17 May 2007; Source: Scopus; Language of Original Document: English; Correspondence Address: Heyes, C.M. |
Approved |
no |
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Serial |
1766 |
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| Author |
Heyes CM; Dawson GR |
| Title |
A demonstration of observational learning using a bidirectional control |
Type |
Journal Article |
| Year |
1990 |
Publication |
Q. J. Exp. Psychol. |
Abbreviated Journal |
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| Volume |
42 |
Issue |
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Pages |
59 |
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no |
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Equine Behaviour @ team @ |
Serial |
3008 |
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| Author |
Iacobucci, D.; Wasserman, S. |
| Title |
Social networks with two sets of actors |
Type |
Journal Article |
| Year |
1990 |
Publication |
Psychometrika |
Abbreviated Journal |
Psychometrika |
| Volume |
55 |
Issue |
4 |
Pages |
707-720 |
| Keywords |
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| Abstract |
Abstract Traditional network research analyzes relational ties within a single group of actors: the models presented in this paper involve relational ties exist beteen two distinct sets of actors. Statistical models for traditional networks in which relations are measured within a group simplify when modeling unidirectional relations measured between groups. The traditional paradigm results in a one-mode socionatrix; the network paradigm considered in this paper results in a two-mode socionatrix; A statistical model is presented, illustrated on a sample data set, and compared to its traditional counterpart. Extensions are discussed, including those that model multivariate relations simultaneously, and those that allow for the inclustion of attributes of the individuals in the group. |
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Approved |
no |
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Equine Behaviour @ team @ |
Serial |
5036 |
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| Author |
Hostikka, S.L.; Eddy, R.L.; Byers, M.G.; Hoyhtya, M.; Shows, T.B.; Tryggvason, K. |
| Title |
Identification of a distinct type IV collagen alpha chain with restricted kidney distribution and assignment of its gene to the locus of X chromosome-linked Alport syndrome |
Type |
Journal Article |
| Year |
1990 |
Publication |
Proceedings of the National Academy of Sciences of the United States of America |
Abbreviated Journal |
Proc. Natl. Acad. Sci. U.S.A. |
| Volume |
87 |
Issue |
4 |
Pages |
1606-1610 |
| Keywords |
Amino Acid Sequence; Base Sequence; Chromosome Mapping; Cloning, Molecular; Collagen/*genetics; Epitopes/analysis; Female; Fluorescent Antibody Technique; Gene Library; *Genes; Humans; Immunoblotting; Kidney/cytology/*metabolism; Macromolecular Substances; Molecular Sequence Data; Nephritis, Hereditary/*genetics; Oligopeptides/chemical synthesis/immunology; Placenta/metabolism; Pregnancy; Restriction Mapping; Sequence Homology, Nucleic Acid; *X Chromosome |
| Abstract |
We have identified and extensively characterized a type IV collagen alpha chain, referred to as alpha 5(IV). Four overlapping cDNA clones isolated contain an open reading frame for 543 amino acid residues of the carboxyl-terminal end of a collagenous domain, a 229-residue carboxyl-terminal noncollagenous domain, and 1201 base pairs coding for a 3' untranslated region. The collagenous Gly-Xaa-Yaa repeat sequence has five imperfections that coincide with those in the corresponding region of the alpha 1(IV) chain. The noncollagenous domain has 12 conserved cysteine residues and 83% and 63% sequence identity with the noncollagenous domains of the alpha 1(IV) and alpha 2(IV) chains, respectively. The alpha 5(IV) chain has less sequence identity with the putative bovine alpha 3(IV) and alpha 4(IV) chains. Antiserum against an alpha 5(IV) synthetic peptide stained a polypeptide chain of about 185 kDa by immunoblot analysis and immunolocalization of the chain in human kidney was almost completely restricted to the glomerulus. The gene was assigned to the Xq22 locus by somatic cell hybrids and in situ hybridization. This may be identical or close to the locus of the X chromosome-linked Alport syndrome that is believed to be a type IV collagen disease. |
| Address |
Biocenter, University of Oulu, Finland |
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English |
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0027-8424 |
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| Notes |
PMID:1689491 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
5291 |
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| Author |
Klingel, H. |
| Title |
Kalameili – future home of the Przewalski horse? |
Type |
Book Chapter |
| Year |
1990 |
Publication |
Proceedings of the 5th International Symposium on the Preservation of the Przewalski Horse, Leipzig |
Abbreviated Journal |
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Issue |
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Pages |
221-224 |
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Zoolog Garten |
Place of Publication |
Leipzig |
Editor |
Seifert, S. |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
yes |
| Call Number |
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Serial |
1323 |
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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 |
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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no |
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Equine Behaviour @ team @ |
Serial |
4799 |
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