作者: K. L. BLAXTER , J. P. JOYCE , F. W. WAINMAN
DOI: 10.1038/1981115B0
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摘要: EXPERIMENTS in respiration chambers which the ambient air temperature could be accurately controlled showed that below heat production increases response to a fall is calves 13° C (ref. 1), adult cattle 7° 2) and sheep with 4-cm fleece 8° 3). In these experiments movement was less than 0.5 m.p.h., being induced by circulating fans chambers. Little information available about effect of on losses cattle. Alexander4 has shown, however, very large when lambs are exposed blast fan metabolic effects have been noted infant caribou cold windy conditions5. Many practical observations show sheep, indeed their survival, adversely affected winds.