Lactation in yearling Alaskan reindeer: Implications for growth, reproduction, and survival
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چکیده
منابع مشابه
Lactation in yearling Alaskan reindeer: Implications for growth, reproduction, and survival
Unlike most Rangifer herds, free-ranging female reindeer {Rangifer tarandus) on the Seward Peninsula, Alaska frequently give birth as yearlings (12 months). In other reindeer herds this early reproduction has led to negative effects such as decreased future weight gain and reproduction. We analyzed reindeer data collected on the Seward Peninsula between 1987 and 1997 to determine what effect la...
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Reindeer are either wild or kept under very extensive farming systems. They are seasonal breeders, with mating coinciding with the decreasing photoperiod in the autumn, and with calving in the spring. Little is known regarding the factors that influence reproduction in reindeer or of their reproductive physiology. Studies carried out to date have mainly focused on issues related to the populati...
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The people of northwestern Alaska have had a long relationship with local populations of Rangifer tarandus. During the last 200 years this relationship has changed from one of subsistence to overexploitation of caribou (the name for wild reindeer in North America), to commercial livestock production of semi domesticated reindeer and now may be returning to a subsistence economy based on caribou...
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BACKGROUND The reindeer (Rangifer tarandus tarandus) industry in Alaska began with animals imported from Siberia (Russia) in the 1890's. Cervid herpes virus 2 (CvHV2) is endemic in reindeer in Scandinavia. We sought to determine if the same virus, or similar herpesviruses, were circulating in Alaskan reindeer and caribou (Rangifer tarandus granti). Serum samples from 292 reindeer were collected...
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Reproduction Akiko Satake*, Gen Sakurai and Toshinori Kinoshita* Faculty of Environmental Earth Science, Hokkaido University, N10W5, Kita-ku, Sapporo, 060-0810 Japan Ecosystem Informatics Division, National Institute for Agro-Environmental Sciences, 3-1-3 Kannondai, Tsukuba, 305-8604 Japan Division of Biological Science, Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602 J...
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ژورنال
عنوان ژورنال: Rangifer
سال: 1999
ISSN: 1890-6729
DOI: 10.7557/2.19.2.283