Feeding Asian and African elephants Elephas maximus and Loxodonta africana in captivity
نویسندگان
چکیده
منابع مشابه
Comparative endocrinology of cycling and non-cycling Asian (Elephas maximus) and African (Loxodonta africana) elephants.
Up to 14% of Asian and 29% of African elephants in captivity are not cycling normally or exhibit irregular cycles based on progestin profiles. To determine if ovarian acyclicity is related to other disruptions in endocrine activity, serum pituitary, thyroid, adrenal, and ovarian hormones in weekly samples collected for 6-25 months were compared between normal cycling (n=22 each species) and non...
متن کاملBirth statistics for African (Loxodonta africana) and Asian (Elephas maximus) elephants in human care: history and implications for elephant welfare.
African (Loxodonta africana) and Asian elephants (Elephas maximus) have lived in the care of humans for many years, yet there is no consensus concerning some basic parameters describing their newborn calves. This study provides a broad empirical basis for generalizations about the birth heights, birth weights, birth times and gestation periods of elephant calves born in captivity. I obtained da...
متن کاملEvaluation of Demographics and Social Life Events of Asian (Elephas maximus) and African Elephants (Loxodonta africana) in North American Zoos
This study quantified social life events hypothesized to affect the welfare of zoo African and Asian elephants, focusing on animals that were part of a large multi-disciplinary, multi-institutional elephant welfare study in North America. Age was calculated based on recorded birth dates and an age-based account of life event data for each elephant was compiled. These event histories included fa...
متن کاملHousing and Social Environments of African (Loxodonta africana) and Asian (Elephas maximus) Elephants in North American Zoos
We evaluated 255 African (Loxodonta africana) and Asian (Elephas maximus) elephants living in 68 North American zoos over one year to quantify housing and social variables. All parameters were quantified for the both the day and the night and comparisons were made across these time periods as well as by species and sex. To assess housing, we evaluated not only total exhibit size, but also indiv...
متن کاملThermoregulation of African (Loxodonta africana) and Asian (Elephas maximus) Elephants: Heterothermy as an Adaptation of Living in Hot Climates
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ژورنال
عنوان ژورنال: International Zoo Yearbook
سال: 2006
ISSN: 0074-9664,1748-1090
DOI: 10.1111/j.1748-1090.2006.00088.x