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Feed additives to diets supplemented with copper for growing pigs

  • R. Braude (a1) and Zena D. Hosking (a1)

Summary

Results of a co-ordinated trial carried out at 19 centres and involving 632 growing pigs indicated that the performance of pigs receiving diets supplemented with copper sulphate, at 250 mg Cu/kg diet, can be improved by the addition to the diet of 10 mg/kg of ‘Payzone’ or 50, reducing to 20 mg/kg, of ‘Grofas’. Zinc bacitracin, 50 mg/kg diet, was not effective. There were no marked effects on carcass quality.

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Braude, R. (1965). Copper as a growth stimulant in pigs. Transactions Symposium Cuprum Pro Vita, Vienna, pp. 5566.
Braude, R., Lyon, M. R. & Rowell, J. G. (1965). Comparison of three practical rations for growing pigs. Journal of Agricultural Science, Cambridge 64, 8791.
Braude, R., Mitchell, K. G. & Pittman, R. J. (1971). An apparent synergy between copper sulphate and Payzone in improving the performance of growing pigs. Proceedings of the Nutrition Society 30, 11 A.
Braude, R., Mitchell, K. G. & Pittman, R. J. (1972). Feed additive augments response to copper. Pig Farming 20(6), 34.
Braude, R. & Rowell, J. G. (1957). Labour saving in feeding of fattening pigs. Journal of Agricultural Science, Cambridge 48, 322–5.
Braude, R. & Ryder, K. (1973). Copper levels in diets for growing pigs. Journal of Agricultural Science, Cambridge 80, 489–93.
Braude, R., Townsend, M. J., Harrington, G. & Rowell, J. G. (1962). Effects of oxytetracycline and copper sulphate, separately and together, in the rations of growing pigs. Journal of Agricultural Science, Cambridge 58, 251–6.
Buck, S. F., Harrington, G. & Johnson, R. F. (1962). The prediction of lean percentage of pigs of bacon weight from carcass measurements. Animal Production 4, 2536.
Meyer, H. & Kröger, H. (1973). Kuperfūtterung beim Schwein. Übersicht Tierernährung 1, 944.
Wallace, H. D. (1967). High Level Copper in Surine Feeding, pp. 24. International Copper Research Association.

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