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Author |
Asa, C.S.; Goldfoot, D.A.; Ginther, O.J. |
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Title |
Sociosexual behavior and the ovulatory cycle of ponies (Equus caballus) observed in harem groups |
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Journal Article |
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Year |
1979 |
Publication |
Hormones and Behavior |
Abbreviated Journal |
Horm Behav |
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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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0018-506x |
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Equine Behaviour @ team @ |
Serial |
5363 |
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Author |
Bouman Jg, |
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Title |
A possible stallion exchange strategy in order to decrease inbreeding in the Przewalski horse |
Type |
Book Chapter |
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Year |
1979 |
Publication |
Genetics and Hereditary Diseases of the Przewalski horse |
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Volume |
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Issue |
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Pages |
119 |
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Abstract |
Boer, Leobert E.M. de, and Jan & Inge Bouman, eds. Genetics and Hereditary Diseases of the Przewalski Horse. Rotterdam: Foundation for the Preservation and Protection of the Przewalski Horse 1979. 176p, several photos and charts. Reproduced from typescript, as issued. Very good paperbound (covers shelf-soiled). ** Publishes 18 papers given at the Arnhem Study-Conference of 1978, on many aspects of breeding Przewalski horses, their behavior, etc. |
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Publisher |
er Foundation for the Preservation and Protection of the Przewalski Horse |
Place of Publication |
Rotterdam |
Editor |
de Boer, L.E.M. ; Bouman,J; Bouman, I |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Call Number |
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Serial |
954 |
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Author |
Bouman Jg, |
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Title |
Breeding Przewalski horse in captivity |
Type |
Book Chapter |
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Year |
1979 |
Publication |
Genetics and Herdeditary Diseases of the Przewalski horse |
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Abstract |
Boer, Leobert E.M. de, and Jan & Inge Bouman, eds. Genetics and Hereditary Diseases of the Przewalski Horse. Rotterdam: Foundation for the Preservation and Protection of the Przewalski Horse 1979. 176p, several photos and charts. Reproduced from typescript, as issued. Very good paperbound (covers shelf-soiled). ** Publishes 18 papers given at the Arnhem Study-Conference of 1978, on many aspects of breeding Przewalski horses, their behavior, etc. |
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Publisher |
Foundation for the Preservation and Protection of the Przewalski Horse |
Place of Publication |
Rotterdam |
Editor |
de Boer, L.E.M. ; Bouman,J; Bouman, I |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Call Number |
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Serial |
955 |
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Author |
Bouman Jg, |
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Title |
Does inbreeding ocur in free living horses? |
Type |
Book Chapter |
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Year |
1979 |
Publication |
Genetics and Hereditary Diseases of the Przewalski horse |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
125-132 |
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Abstract |
Boer, Leobert E.M. de, and Jan & Inge Bouman, eds. Genetics and Hereditary Diseases of the Przewalski Horse. Rotterdam: Foundation for the Preservation and Protection of the Przewalski Horse 1979. 176p, several photos and charts. Reproduced from typescript, as issued. Very good paperbound (covers shelf-soiled). ** Publishes 18 papers given at the Arnhem Study-Conference of 1978, on many aspects of breeding Przewalski horses, their behavior, etc. |
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Publisher |
Foundation for the Preservation and Protection of the Przewalski Horse |
Place of Publication |
Rotterdam |
Editor |
de Boer, L.E.M. ; Bouman,J; Bouman, I |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
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Serial |
956 |
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Author |
Bouman-Heinsdijk I, |
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Title |
Does inbreeding occur in free living horses? |
Type |
Book Chapter |
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Year |
1979 |
Publication |
Genetics and Hereditary Diseases of the Przewalski Horse |
Abbreviated Journal |
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Volume |
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Issue |
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Pages |
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Abstract |
Boer, Leobert E.M. de, and Jan & Inge Bouman, eds. Genetics and Hereditary Diseases of the Przewalski Horse. Rotterdam: Foundation for the Preservation and Protection of the Przewalski Horse 1979. 176p, several photos and charts. Reproduced from typescript, as issued. Very good paperbound (covers shelf-soiled). ** Publishes 18 papers given at the Arnhem Study-Conference of 1978, on many aspects of breeding Przewalski horses, their behavior, etc. |
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Publisher |
Foundation for the Preservation and Protection of the Przewalski Horse |
Place of Publication |
Rotterdam |
Editor |
de Boer, L.E.M. ; Bouman,J; Bouman, I |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
958 |
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Author |
Boy V, D.P. |
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Title |
Time-budgets of Camargue horses, I. Development changes in the time-budgets of foals |
Type |
Journal Article |
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Year |
1979 |
Publication |
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Abbreviated Journal |
Behaviour |
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Volume |
71 |
Issue |
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Pages |
187-202 |
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Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
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Call Number |
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Serial |
966 |
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Author |
Boyd L, |
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Title |
The mare-foal demography of feral horses in Wyoming's Red Desert |
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Journal Article |
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Year |
1979 |
Publication |
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Abbreviated Journal |
Symp Ecolo and Behav of wild and feral Equids, Laramie |
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Issue |
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Pages |
185-204 |
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Place of Publication |
Laramy |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
967 |
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Author |
Conley W, |
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Title |
The potential for increase in horse and ass populations: A theoretical analysis |
Type |
Journal Article |
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Year |
1979 |
Publication |
Proceedings of a Conference on the Ecology and Behavior of Feral Equids |
Abbreviated Journal |
Symp Ecol and Behav of wild and feral Equids, Laramie |
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Pages |
221-234 |
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Editor |
R.H. Denniston |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
991 |
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Author |
Denniston, R.H. |
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Title |
The varying role of the male in feral horses |
Type |
Journal Article |
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Year |
1979 |
Publication |
Symp Ecol and Behav of wild and feral Equids, Laramie, |
Abbreviated Journal |
Symp Ecol and Behav of wild and feral Equids, Laramie, |
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Pages |
93-98 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1007 |
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Author |
Duncan P, |
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Title |
Time-budgets of Camrgue horses; II. Time- budgets of adult horses and weaned sub-adults |
Type |
Journal Article |
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Year |
1979 |
Publication |
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Abbreviated Journal |
Behaviour |
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Volume |
72 |
Issue |
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Pages |
26-49 |
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Notes |
from Professor Hans Klingels Equine Reference List |
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Call Number |
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Serial |
1029 |
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