| Records |
| Author |
KASEDA Y et al, |
| Title |
Sire – foal relationships between harem stallions and foals in Misaki horses |
Type |
Journal Article |
| Year |
1982 |
Publication |
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Abbreviated Journal |
Jap J Zootech Sci |
Volume  |
53 |
Issue |
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Pages |
822-830 |
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Medium |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
| Call Number |
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Serial |
1241 |
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| Author |
Dolan Jm, |
| Title |
Przewalski's horse, Equus przewalskii Poliakov, 1881, in the United States prior to 1940 and its influence of the present breeding |
Type |
Journal Article |
| Year |
1982 |
Publication |
Zoologische Garten |
Abbreviated Journal |
Zool. Garten. |
| Volume |
52 |
Issue |
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Pages |
49-65 |
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Conference |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
| Call Number |
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Serial |
1019 |
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| Author |
Poglayen- Neuwall I, |
| Title |
Einbürgerung exotischer Huftiere in New Mexico 1950 – 1979 |
Type |
Journal Article |
| Year |
1982 |
Publication |
Zoologische Garten |
Abbreviated Journal |
Zool. Garten. |
| Volume |
52 |
Issue |
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Pages |
195-232 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
| Call Number |
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Serial |
1481 |
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| Author |
Eberhardt, L.L.; Majorowicz, A. K.; Wilcox,J. A. |
| Title |
Apparent Rates of Increase for Two Feral Horse Herds |
Type |
Journal Article |
| Year |
1982 |
Publication |
The Journal of Wildlife Management |
Abbreviated Journal |
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| Volume |
46 |
Issue |
2 |
Pages |
367-374 |
| Keywords |
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| Abstract |
Rates of increase for 2 Oregon feral horse (Equus caballus) herds were estimated from direct aerial counts to be about 20% per year. These rates can be achieved only if survival rates are high, and reproduction exceeds that normally expected from horses. A population dynamics model suggests adult survival to be the key parameter in determining rates of increase, and there is some direct evidence of high adult survival rates. Management implications are discussed. |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2286 |
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| Author |
Harrington, F.H.; Mech, L.D. |
| Title |
An analysis of howling response parameters useful for wolf pack censusing |
Type |
Journal Article |
| Year |
1982 |
Publication |
J Wildl Manag |
Abbreviated Journal |
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| Volume |
46 |
Issue |
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Pages |
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no |
| Call Number |
Equine Behaviour @ team @ Harrington1982 |
Serial |
6456 |
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| Author |
Gonzalez-Fernandez, J.M.; Atta, S.E. |
| Title |
Facilitated transport of oxygen in the presence of membranes in the diffusion path |
Type |
Journal Article |
| Year |
1982 |
Publication |
Biophysical Journal |
Abbreviated Journal |
Biophys J |
| Volume |
38 |
Issue |
2 |
Pages |
133-141 |
| Keywords |
Animals; Biological Transport, Active; Cell Membrane/*metabolism; Diffusion; Dogs; Horses; Humans; Kinetics; Mathematics; *Models, Biological; Muscles/*metabolism; Oxygen/*metabolism |
| Abstract |
Most of the experimental observations on facilitated transport have been done with millipore filters, and all the theoretical studies have assumed homogeneous spatial properties. In striated muscle there exist membranes that may impede the diffusion of the carrier myoglobin. In this paper a theoretical study is undertaken to analyze the transport in the presence of membranes in the diffusion path. For the numerical computations physiologically relevant values of the parameters were chosen. The numerical results indicate that the presence of membranes tends to decrease the facilitation. For the nonlinear chemical kinetics of the reaction of oxygen with the carrier, this decrement also depends on the location of the membranes. At the higher oxygen concentration side of each membrane the flow of combined oxygen is transferred to the flow of dissolved oxygen. The reverse process occurs at the lower concentration side. Jump discontinuities of the concentration of the oxygen-carrier compound at each membrane are associated with these transfers. The decrement of facilitation is due to the cumulative effect of these jump discontinuities. |
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English |
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Edition |
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| ISSN |
0006-3495 |
ISBN |
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Medium |
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Conference |
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| Notes |
PMID:7093418 |
Approved |
no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
3806 |
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| Author |
Rescorla, R.A.; Holland, P.C. |
| Title |
Behavioral Studies of Associative Learning in Animals |
Type |
Journal Article |
| Year |
1982 |
Publication |
Annual Review of Psychology |
Abbreviated Journal |
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| Volume |
33 |
Issue |
1 |
Pages |
265-308 |
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| Notes |
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Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
3540 |
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| Author |
Turner, J.W.J.; Kirkpatrick, J.F. |
| Title |
Androgens, behaviour and fertility control in feral stallions |
Type |
Journal Article |
| Year |
1982 |
Publication |
Journal of reproduction and fertility. Supplement |
Abbreviated Journal |
J Reprod Fertil Suppl |
| Volume |
32 |
Issue |
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Pages |
79-87 |
| Keywords |
Animals; Animals, Wild; Copulation/drug effects; Female; *Fertility/drug effects; Horses/*physiology; Male; Periodicity; Pregnancy; Seasons; *Sexual Behavior, Animal/drug effects; Sexual Maturation; Sperm Count; Sperm Motility/drug effects; Testosterone/*blood/pharmacology |
| Abstract |
This field study of feral stallions in Montana and Idaho examines and correlates the seasonal pattern of plasma androgens and specific sociosexual behaviour and reports the effect of a long-acting androgenic steroid on this behaviour and on fertility. Plasma testosterone was measured by competitive protein binding assay in samples obtained by jugular venepuncture from captured animals. In samples taken from 34 sexually mature stallions in 6 different months during the year, a definite seasonal pattern in testosterone was present, with a peak in May (3.04 +/- 0.63 ng/ml) and a nadir in December (1.55 +/- 0.34 ng/ml). Values were less than 2.0 ng/ml in non-breeding months and greater than 2.4 ng/ml in breeding months. Behavioural endpoints measured were (1) stallion scent marking in response to elimination by mares (elimination marking), (2) mounting and (3) copulation. The frequencies of each of these endpoints followed closely the seasonal pattern seen for plasma androgens. In the fertility study microcapsulated testosterone propionate (microTP) was administered i.m. to 10 harem stud stallions 3 months before the 1980 breeding season. In these stallions and in 10 control harem studs, the above behavioural endpoints were examined in the 1980 and 1981 breeding seasons, and foal counts were made in 1981. There were no direct inhibitory or stimulatory effects of microTP treatment on any of the behavioural endpoints in either year. In 1981 foals were produced in 87.5% of the control bands and 28.4% of the microTP-treated bands. These results indicate that microencapsulated testosterone propionate can provide effective fertility control in feral horses without causing significant alterations in sociosexual behaviour. |
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English |
Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0449-3087 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
PMID:6962905 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
138 |
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| Author |
Cox Je, |
| Title |
Factors affecting testis weight in normal and cryptorchid horses |
Type |
Journal Article |
| Year |
1982 |
Publication |
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Abbreviated Journal |
J Reprod Fert Suppl |
| Volume |
32 |
Issue |
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Pages |
129-134 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
| Call Number |
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Serial |
994 |
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| Author |
Klingel, H. |
| Title |
Social organization of feral horses |
Type |
Journal Article |
| Year |
1982 |
Publication |
Journal of Reproduction and Fertility. Supplement |
Abbreviated Journal |
J Reprod Fertil Suppl |
| Volume |
32 |
Issue |
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Pages |
89-95 |
| Keywords |
Animals; Animals, Wild; Female; Horses/*physiology; Male; Sexual Behavior, Animal; *Social Behavior; Territoriality |
| Abstract |
The basic social unit in feral horses is the family group consisting of one stallion, one to a few unrelated mares and their foals. Surplus stallions associate in bachelor groups. Stallions are instrumental in bringing mares together in a unit which then persists even without a stallion. The similarity of social organization in populations living in a variety of different habitats indicates that feral horses have reverted to the habits of their wild ancestors, and that domestication has had no influence on this basic behavioural feature. |
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English |
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0449-3087 |
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| Notes |
PMID:6962906 |
Approved |
no |
| Call Number |
refbase @ user @ |
Serial |
1958 |
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