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The calcium, phosphorus and vitamin D requirements of swine

Published online by Cambridge University Press:  27 March 2009

George Dunlop
Affiliation:
Ministry of Agriculture Research Scholar. (From the Animal Nutrition Research Institute, School of Agriculture, University of Cambridge.)

Summary and conclusions

The results of experiments conducted on 156 swine, from time of weaning till bacon weights were reached, are reported. One hundred and twenty of these animals were subjected to complete dietary control as regards the quantity of food consumed and the composition of the diet.

Twenty-nine treatments, consisting of different amounts of Ca, P and vitamin D added to an otherwise adequate diet, were imposed.

The reaction of the animals to the treatments was studied in relation to growth (increase in weight), appetite, utilisation of the food, the blood picture (concentration of serum Ca, blood inorganic phosphate, serum phosphatase and blood Hb), and the morphology and chemical composition of the bone. The results obtained are summarised in Table XVIII.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1935

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References

REFERENCES

(1)Bethke, P. M., Edgington, B. H. and Kick, C. H.Effect of calcium-phosphorus relationship of the ration on growth and bone formation in the pig. J. agric. Res. (1933), 47, 331.Google Scholar
(2)Bethke, P. M., Record, P. R. and Kinnard, D. C.The comparative antirachitic efficiency of irradiated ergosterol, irradiated yeast and cod-liver oil for the chicken. J. Nutrit. (1933), 6, 413.CrossRefGoogle Scholar
(3)Bodansky, A. and Jaffe, L. H.Effect of diet and fasting on plasma phosphatase. Proc. Soc. exp. Biol., N.Y. (1931), 29, 199.CrossRefGoogle Scholar
(4)Bohstedt, G.et al. Mineral and vitamin requirement of pigs. Bull. Ohio agric. Exp. Sta. No. 395.Google Scholar
(5)Bruce, H. M. and Callow, R. K.Diet and the teeth. Brit. med. J. (1932), 2, 172. Cereals and rickets. The rô1e of inositolhexaphosphoric acid. Biochem. J. (1934), 28, 517.CrossRefGoogle Scholar
(6)Dunlop, G.Methods of experimentation in animal nutrition. J. agric. Sci, (1933), 23, 580.CrossRefGoogle Scholar
(7)Dunlop, G.Paralysis and avitaminosis A in swine. J. agric. Sci. (1934), 24, 435.CrossRefGoogle Scholar
(8)Dunlop, G.Control of variation in gain in animal nutrition experiments. J. agric. Sci. (1935), 25, 151.CrossRefGoogle Scholar
(9)Gyllensward, C. and Jundell, J.Effect of anti-rachitic agents on the white blood corpuscles. Acta Paediatr., Stockh. (1931), 10, 401.Google Scholar
(10)King, E. J., Hull, H. and Hall, G. E.Ergosterol requirements of growing chicks. Poult. Sci. (1933), 12, 129.CrossRefGoogle Scholar
(11)Poppov, I.Effect of excess of calcium carbonate on the digestibility of feeding stuffs. J. Univ. Sofia Agric. Fak. (1931–2), 10, 225.Google Scholar
(12)Reimers, J. W. H. and Smuts, D. B.The significance of calcium and phosphorus in the development and growth of pigs. Arch. Tierernähr. Tierz. (1932), 7, 471.Google Scholar
(13)Shohl, A. T., Brown, H. B., Rose, C. S. and Saurwein, E.Does ratio of calcium to phosphorus in the diet determine whether rickets is produced in the rat? J. biol. Chem. (1932), 97, Proc. X.Google Scholar
(14)Sinclair, R. D.The rôle of vitamin D in the nutrition of the pig. Sci. Agric. (1933), 13, 489.Google Scholar
(15)Spildo, L. S.151st Rep. Res. Lab. Roy. Vet. and Agric. Coll. Copenhagen (1931).Google Scholar
(16)Sure, B. and Kik, M. C.Haematopoietic function in avitaminosis. 5. Vitamin D deficiency. Proc. Soc. exp. Biol., N.Y. (1930–1), 28, 496.CrossRefGoogle Scholar
(17)Thalman, R. R. and Loeffel, W. J. Some aspects of rickets in swine. Proc. Amer. Soc. Anim. Prod. (1928), p. 83.Google Scholar