| Records |
| Author |
Klingel, H. |
| Title |
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 |
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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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English |
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| ISSN |
0449-3087 |
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| Notes |
PMID:1060868 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2303 |
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| Author |
Feist, J.D.; McCullough, D.R. |
| Title |
Reproduction in feral horses |
Type |
Journal Article |
| Year |
1975 |
Publication |
Journal of Reproduction and Fertility. Supplement |
Abbreviated Journal |
J Reprod Fertil Suppl |
| Volume |
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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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0449-3087 |
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| Notes |
PMID:1060766 |
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refbase @ user @ |
Serial |
1964 |
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| Author |
Belonje, P.C.; van Niekerk, C.H. |
| Title |
A review of the influence of nutrition upon the oestrous cycle and early pregnancy in the mare |
Type |
Journal Article |
| Year |
1975 |
Publication |
Journal of Reproduction and Fertility. Supplement |
Abbreviated Journal |
J Reprod Fertil Suppl |
| Volume |
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Issue |
23 |
Pages |
167-169 |
| Keywords |
Animals; Body Weight; *Diet; *Estrus; Female; Fertility; Fetal Resorption/prevention & control; Horses/*physiology; Pregnancy |
| Abstract |
Attention is drawn to the beneficial effect of improved nutrition during winter and early spring on the ovarian activity of mares. Furthermore, the necessity of an adequate plane of nutrition during early pregnancy to prevent embryonic resorption is stressed. |
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0449-3087 |
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| Notes |
PMID:1060772 |
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| Call Number |
Equine Behaviour @ team @ |
Serial |
2225 |
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| Author |
Mitchell, D.; Allen, W. R. |
| Title |
Observations on reproductive performance in the yearling mare |
Type |
Journal Article |
| Year |
1975 |
Publication |
Journal of Reproduction and Fertility |
Abbreviated Journal |
J. Reprod. Fert., |
| Volume |
(Suppl. 23) |
Issue |
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Pages |
531-536 |
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| Abstract |
Reproductive performance was studied in 137 yearling mares run with stallions in small groups for 3 months between June and August in 1968 to 1971 (four breeding seasons). Pregnancy diagnosis by repeated rectal palpation and qualitative tests for PMSG, showed that ninety-five mares conceived of which forty-four aborted spontaneously between days 30 and 160 of gestation. Laboratory examination of twenty-one aborted fetuses failed to show any infectious agents. Serial quantitative and qualitative tests for PMSG in aborting animals gave results similar to those observed in mares with normal pregnancies. Plasma progestagen assays showed marked individual variations although the loss of the conceptus was always associated with a drop in progestagen level. The high incidence of early pregnancy loss in these pubertal mares may also be related to immaturity, inadequate nutrition and physical stress. |
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Equine Behaviour @ team @ |
Serial |
2378 |
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| Author |
Rossdale Pd, |
| Title |
Das Pferd, Fortpflanzung und Entwicklung |
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Journal Article |
| Year |
1975 |
Publication |
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Abbreviated Journal |
Karger 1975 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1519 |
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| Author |
Smuts Gl, |
| Title |
Home range sizes for Burchell's Zebra, Equus burchelli antiquorum from the Krüger National Park |
Type |
Journal Article |
| Year |
1975 |
Publication |
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Abbreviated Journal |
Koedoe |
| Volume |
18 |
Issue |
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Pages |
139-146 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1612 |
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| Author |
Smuts Gl, |
| Title |
Pre – and postnatal growth phenomena of Burchell's Zebra, Equus Burchelli Antiquorum |
Type |
Journal Article |
| Year |
1975 |
Publication |
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Abbreviated Journal |
Koedoe |
| Volume |
18 |
Issue |
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Pages |
69-102 |
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from Professor Hans Klingels Equine Reference List |
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no |
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1613 |
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| Author |
Malcom Jr, L.H. |
| Title |
Notes on wild dogs hunting zebras |
Type |
Journal Article |
| Year |
1975 |
Publication |
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Abbreviated Journal |
Mammalia |
| Volume |
39 |
Issue |
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Pages |
231-240 |
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from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1363 |
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| Author |
Imesh Gd, S.G. |
| Title |
Gross and microscopic observations of ovarian abnormalities from five Burchell's zebra |
Type |
Journal Article |
| Year |
1975 |
Publication |
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Abbreviated Journal |
Onderstepoort J vet Res |
| Volume |
42 |
Issue |
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Pages |
109-116 |
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from Professor Hans Klingels Equine Reference List |
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no |
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1213 |
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| Author |
Klingel H, |
| Title |
Die soziale Organisation der Equiden |
Type |
Journal Article |
| Year |
1975 |
Publication |
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Abbreviated Journal |
Verh Dtsch Zool Ges in Karlsruhe |
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Pages |
71-80 |
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from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1308 |
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