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Author |
Kirkpatrick, J. F.; Kasman, L. H.; Lasley,; B. L.; Turner, J. W. Jr. |
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Title |
Pregnancy Determination in Uncaptured Feral Horses |
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Journal Article |
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Year |
1988 |
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Journal of Wildlife Management |
Abbreviated Journal |
J Wildl Manag |
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52 |
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2 |
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305-308 |
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The urinary excretion of estrone sulfate ($\text{E}{1}\text{S}$) by 25 free-roaming feral horses (Equus caballus) was measured by radioimmunoassay applied to extracts of urine-soaked soil. Twelve of 15 mares having $\text{E}{1}\text{S}$ concentrations >1.0 mg/mg creatinine (x = 2.64 +- 1.02 [SD]) produced foals. All 10 mares with $\text{E}{1}\text{S}$ concentrations <1.0 mg/mg creatinine (x = 0.44 +- 0.26) did not foal. Extracting urine from soil and measuring $\text{E}{1}\text{S}$ and creatinine can be used to determine pregnancy in free-roaming feral horses without the stress of capture or immobilization. |
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Equine Behaviour @ team @ |
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2290 |
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Author |
King Jm, K.H. |
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The use of the oripavine derivative M.99 for the restraint of equine animals and its antgonism with the related compund M |
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Book Whole |
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1965 |
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285 |
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from Professor Hans Klingels Equine Reference List |
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1265 |
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Author |
Klingel, H. |
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Title |
Soziale Organisation und Verhalten freilebender Steppenzebras (Equus quagga) |
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Journal Article |
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1967 |
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Zeitschrift für Tierpsychologie |
Abbreviated Journal |
Z. Tierpsychol. |
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24 |
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5 |
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580-624 |
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from Professor Hans Klingels Equine Reference List |
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yes |
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1289 |
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Klingel, H. |
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Title |
Dix ans parmi les zèbres |
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1991 |
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Terre Sauvage |
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Terre Sauvage |
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48 |
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34-43 |
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from Professor Hans Klingels Equine Reference List |
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yes |
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1321 |
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Author |
Klingel, H. |
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Title |
Tausend Zebras im Computer |
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1991 |
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Das Tier |
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Das Tier |
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10 |
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8-16 |
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from Professor Hans Klingels Equine Reference List |
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yes |
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1322 |
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Kusunose R, S.H. |
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Title |
The behavioral development of thouroughbred foals and the relationship between dams and foals |
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Year |
1984 |
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Jap J Zootechn Sci |
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55 |
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263-271 |
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from Professor Hans Klingels Equine Reference List |
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no |
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1333 |
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Author |
Miller, R.; Denniston, R.H. |
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Title |
Interband dominance in feral horses |
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1979 |
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Zeitschrift für Tierpsychologie |
Abbreviated Journal |
Z. Tierpsychol. |
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51 |
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41-47 |
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from Professor Hans Klingels Equine Reference List |
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yes |
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1397 |
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Author |
PITRA, C.H.; STREICH, W.J.; REINSCH, A.; FICKEL, J. |
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Title |
Die Population des Somali-Wildesels (Equus africanus somalicus Sclater) in menschlicher Obhut: Demographische und genetische Aspekte |
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1995 |
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Zoologische Garten |
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Zool. Garten. |
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N.F. 65 |
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4 |
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245-257 |
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1472 |
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Author |
Schilder, M.B.H. |
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Title |
Dominance relationships between adult Plains zebra stallions in semi – captivity |
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1988 |
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Behaviour |
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Behaviour |
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104 |
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3-4 |
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300-319 |
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The relationships between 4-5 adult zebra stallions, living in a safari park, were investigated over a period of 5 years. Asymmetries in the distributions of a number of behaviours could be explained by adopting dominance as an intervening variable. Dominance in stallions was of a bipolar nature with on the one hand behaviours representing subordinance and defence, and on the other hand behaviours reinforcing and confirming dominance. Expression of formal dominance seems to play a minor role. The dyadic relationships of stallions differed as to the number of behaviours reflecting dominance relationships. Although often linear rank-orders could be constructed, these rank-orders were not necessarily identical. This means that the concept of dominance is of only limited value for describing relationships between zebra stallions. |
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from Professor Hans Klingels Equine Reference List |
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yes |
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Call Number |
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1564 |
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Author |
Schilder, M.B. H. |
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Title |
Interventions in a herd of semi – captive Plains zebras |
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1990 |
Publication |
Behavior |
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Behaviour |
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112 |
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1-2 |
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53-83 |
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n a herd of semi-captive plains zebras interventions, which occurred within the harems, were investigated in order to answer the question why zebras interfered. These interventions are of interest because they regulate the contacts between companions and because, as corrective and preventive measures, they reveal the normative principles underlying the behaviours by which animals structure their social environment. An attempt was made to deduce 1) the internal norms of the interferer; 2) his short term aims; 3) his tactis and 4) his perception of the social environment. The analysis revealed that in the case of an affiliative interaction foals, yearlings and adult mares started to interfere if a friend had an affiliative contact with another zebra. In view of the interferer's behaviours it was concluded that their aim was to break off the ongoing interaction and that zebras tended to protect friendship bonds. Foals and yearlings further interfered if their mother was being threatened, attacked or sexually approached by a stallion. In view of the interferer's behaviours its aim was to prevent iminent interactions or to break off ongoing interactions. This suggests that these interventions were of a protective nature. The interferer's behaviours in both contexts ware very much alike. Mares tended to interfere if their foal/yearling or adult daughter was threathened or aggressed or if a mare friend was being sexually approached by a stallion. This type of intervention was of a protective nature. Stallions in a multi male harem showed a high tendency to interfere in courtship interactions. From the resemblance between interventions in courtship and in aggressive interactions it is concluded that, at leat in a number of cases, the individuals have perceived courtship behaviour by the stallion as a threat towards the mare involved. |
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1565 |
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