Author:
Whittemore C. T.,Smith W. C.,Thompson A.
Abstract
SUMMARYThe availability of Ca and P in the young growing pig was determined by the use of a radioisotopic technique. Eighteen Large White barrows of 25 kg mean body weight were used in the study, 10 being fed 1·20 kg per day of a cereal-based diet and the remainder half of this amount. At the higher dietary level the intake of Ca was 9·4 g/day, and that of P was 9·7 g/day. The mean availabilities of Ca and P were 41·5% and 78·1% respectively. At the lower level of intake there was no significant change in the availability of either element, mean values being 39·6% for Ca and 82·5% for P. These values contrast markedly with the 67% for Ca and 50% for P currently used in the calculation of dietary requirements for the elements by the factorial approach.
Publisher
Cambridge University Press (CUP)
Subject
Animal Science and Zoology
Reference10 articles.
1. Digestive utilization, kinetics of absorption and efficiency of retention of phytic phosphorus in pigs;Gueguen;Annls Biol. anim. Biochim. Biophys,1968
2. A simplified radioisotopic procedure for the determination of calcium and phosphorus availability;Whittemore;Proc. Nutr. Soc,1969
3. A comparison of the calcium and phosphorus availability in a diet fed to both the rat and the pig;Whittemore;Proc. Nutr. Soc,1971
4. Automatic liquid scintillation counting of high-energy β emitters in tissue slices and aqueous solutions in the absence of organic scintillator
Cited by
8 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献