Abstract
SUMMARYA re-examination of the results from 374 sheep used in previovis studies of calcium metabolism show there is a highly significant linear relationship between endogenous faecal loss of Oa and food intake, endogenous loss increasing by about 0·64 mg/day/kg body weight for each 1 g/day/kg body weight increase in food intake. This loss was unaltered by Ca intake or by pregnancy and lactation but was slightly higher in young animals than in adult animals given the same Ca intake on a body-weight basis. It is suggested that a variable factor for endogenous Ca loss, based upon some measure of level of feeding, should be introduced into rationing schemes.
Publisher
Cambridge University Press (CUP)
Subject
Genetics,Agronomy and Crop Science,Animal Science and Zoology
Reference23 articles.
1. Calcium kinetics in cows during late pregnancy, parturition and early lactation;Ramberg;American Journal of Physiology,1970
2. Braithwaite G. D. & Glascock R. F. (1976). Metabolism of calcium in the sheep. Biennial Reviews, National Institute for Research in Dairying, pp. 43–59.
3. The effect of ruminal and duodenal application of different levels of calcium and phosphorus to sheep on semi-purified diets;Nel;South African Journal of Animal Science,1974
4. Méthode de mesure des principales voies du métabolisme calcique chez l'homme
5. Effects of Orally Administered Stilbestrol upon Growth and upon Calcium and Phosphorus Metabolism in Lambs1
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