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CAB Reviews

A reviews journal covering agriculture, global health, nutrition, natural resources and veterinary science

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Several studies indicate that the length of the oestrous cycle in tropical cattle is about 21 days, and that the oestrous period lasts from 4 to 14 h depending on breed and time of year. Most of the published information suggests that these animals show overt oestrous signs in the early morning,...

Galina, C. S.; Arthur, G. H.
Animal Breeding Abstracts, 1990, 58, 8, pp 697-707