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GRANT'S ZEBRA, Equus burchelli boehmi , AT BASLE ZOO ‐ A CONTRIBUTION TO BREEDING BIOLOGY

GRANT'S ZEBRA, Equus burchelli boehmi , AT BASLE ZOO ‐ A CONTRIBUTION TO BREEDING BIOLOGY Bade Zoo since 1947. The present study is based exclusively on observations made on this herd, mainly on the daily reports written by the keepers. It demonstrates, firstly the part that can be played by a zoo in the study of the biology of wild animals and, secondly, the success achieved by modem methods of zoo husbandry. By this we mean the method of keeping animals in individual stalls - often called the farnling method. From 1947 to the end of 1963, thirty-two healthy zebras were born at Bask Zoo. Our little herd consisted, most of the time, of a stallion and three or four mares. At times all four mares were accompanied by a foal. Oestrus, that is to say, the time when successfiil copulations can take place, lasts between two to nine days in our mares. The interval between the end of one oestrus and the beginning of the next was noted as being between seventeen and twenty-four days. The variation, however, is considerable. The shortest interval was eleven days, the longest twenty-seven and twenty-eight days. Where records of thirty-five, forty, forty-one and forty-seven days occur, it is probable that an intermediary oestrus escaped our notice. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Zoo Yearbook Wiley

GRANT'S ZEBRA, Equus burchelli boehmi , AT BASLE ZOO ‐ A CONTRIBUTION TO BREEDING BIOLOGY

Wackernagel, Hans
International Zoo Yearbook , Volume 5 (1) – Jan 1, 1965
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Publisher
Wiley
Copyright
Copyright © 1965 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0074-9664
eISSN
1748-1090
DOI
10.1111/j.1748-1090.1965.tb01567.x
Publisher site
See Article on Publisher Site

Abstract

Bade Zoo since 1947. The present study is based exclusively on observations made on this herd, mainly on the daily reports written by the keepers. It demonstrates, firstly the part that can be played by a zoo in the study of the biology of wild animals and, secondly, the success achieved by modem methods of zoo husbandry. By this we mean the method of keeping animals in individual stalls - often called the farnling method. From 1947 to the end of 1963, thirty-two healthy zebras were born at Bask Zoo. Our little herd consisted, most of the time, of a stallion and three or four mares. At times all four mares were accompanied by a foal. Oestrus, that is to say, the time when successfiil copulations can take place, lasts between two to nine days in our mares. The interval between the end of one oestrus and the beginning of the next was noted as being between seventeen and twenty-four days. The variation, however, is considerable. The shortest interval was eleven days, the longest twenty-seven and twenty-eight days. Where records of thirty-five, forty, forty-one and forty-seven days occur, it is probable that an intermediary oestrus escaped our notice.

Journal

International Zoo Yearbook – Wiley

Published: Jan 1, 1965

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