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Effect of trenbolone acetate combined with oestradiol -17β on the response of steers to changes in dietary protein

Published online by Cambridge University Press:  27 March 2009

H. Galbraith
Affiliation:
Division of Chemistry and Biochemistry, School of Agriculture581 King Street, Aberdeen
J. R. Scaife
Affiliation:
Division of Chemistry and Biochemistry, School of Agriculture581 King Street, Aberdeen
G. F. M. Paterson
Affiliation:
Division of Chemistry and Biochemistry, School of Agriculture581 King Street, Aberdeen
E. A. Hunter
Affiliation:
ARC Unit of Statistics, The King's Buildings, Mayfield Road, Edinburgh

Extract

Hormonal anabolic compounds are used in certain countries to improve the efficiency of meat production from ruminant animals. The combination of trenbolone acetate (TBA) and oestradiol-17β (OE2) has been shown to be particularly effective in stimulating growth in cattle (e.g. Galbraith & Topps, 1981). These improvements in growth have been associated with increases in nitrogen retention and changes in protein metabolism within the animal. The present study therefore investigated the effect of implantation with TBA + OE2 on the growth and metabolic response of growing steers to alterations in protein nutrition.

Type
Short Note
Copyright
Copyright © Cambridge University Press 1983

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References

Agricultural Research Council (1980). Requirements for protein. In The Nutrient Requirements of Ruminant Livestock, pp. 122181. Slough: Commonwealth Agricultural Bureaux.Google Scholar
Galbraith, H. (1982). Growth, hormonal and metabolic response of post-pubertal entire male cattle to trenbolone acetate and hexoestrol. Animal Production 35, 269276.Google Scholar
Galbraith, H. & Topps, J. H. (1981). Effect of hormones on the growth and body composition of animals. Nutrition Abstracts and Reviews – Series B 51, 521540.Google Scholar
Griffiths, T. W. (1982). Effects of trenbolone acetate and resorcylic acid lactone on protein metabolism and growth in steers. Animal Production 34, 309314.Google Scholar
Heitzman, R. J., Gibbons, D., Little, W. & Harrison Lynne, P. (1981). A note on the comparative performance of beef steers implanted with the anabolic steroids trenbolone acetate and oestradiol-17β alone or in combination. Animal Production 32, 219222.Google Scholar
Lowrey, O. H., Rosebrouoh, N. J., Farr, A. L. & Randall, R. J. (1951). Protein measurement with the Folin phenol reagent. Journal of Biological Chemistry 193, 265275.CrossRefGoogle Scholar
Scottish Agricultural Colleges (1982). Nutrient Allowances for Cattle and Sheep (in the Press).Google Scholar
Sykes, A. R. (1978). An assessment of the value of plasma urea nitrogen and albumin concentrations as monitors of the protein status of sheep. In The Use of Blood Metabolites in Animal Production. British Society of Animal Production, Occasional publication no. 1, pp. 143154.Google Scholar