Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-23T17:46:43.298Z Has data issue: false hasContentIssue false
  • English
  • Français

Growth performance and body composition of mature female sheep implanted with trenbolone acetate

Published online by Cambridge University Press:  02 September 2010

A. H. Sulieman ,
H. Galbraith  and
J. H. Topps
A. H. Sulieman
Affiliation:
University of Aberdeen, School of Agriculture, 581 King Street, Aberdeen AB9 1UD
H. Galbraith
Affiliation:
University of Aberdeen, School of Agriculture, 581 King Street, Aberdeen AB9 1UD
J. H. Topps
Affiliation:
University of Aberdeen, School of Agriculture, 581 King Street, Aberdeen AB9 1UD
Get access

Abstract

The effect of the anabolic steroid trenbolone acetate (TEA) on growth and body composition was studied in Scottish Blackface mature female sheep weighing 45 kg. The sheep were blocked by weight and randomly allocated to be untreated controls (C) or subcutaneously implanted with 20 (Tl), 40 (T2) or 60 (T3) mg TBA 60 days before slaughter. The sheep were offered to appetite a loose-mix diet which contained an estimated 11 M] metabolizable energy and 120 g crude protein per kg dry matter. Live-weight gain and food intake, on average, were not significantly affected by the hormonal treatment which significantly reduced gut fill and significantly increased empty body and chilled carcass weights. Of the carcass tissues which were dissected only weights of total lean and intermuscular fat were significantly increased following TBA implantation. The relative development of fat, lean and bone in the carcass in the hormonally treated compared with control sheep was not significantly altered. The only effects on weights of organs and body parts associated with TBA implantation were increases in fat deposition in omental and perinephric and retroperitoneal depots. There was some evidence of an increasing response to TBA treatment with increasing dose level for weights of chilled carcass, carcass lean and the ratio of subcutaneous fat to intermuscular fat.

Keywords

Body compositiongrowthsheeptrenbolone
Type
Research Article
Information
Animal Production , Volume 54 , Issue 1 , February 1992 , pp. 53 - 58
Copyright
Copyright © British Society of Animal Science 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Beranger, C. and Malterre, C. 1968. Influence dûn stéroide triénque a activité anabolisante sur lêngraissement des vaches taries. Comptes Rendu de la Societe de Biologie 162: 1157.Google Scholar
Galbraith, H. 1980a. The effect of trenbolone acetate on growth, blood hormones and metabolites and nitrogen balance of beef heifers. Animal Production 30: 389–394.Google Scholar
Galbraith, H. 1980b. Effect of trenbolone acetate on growth, blood metabolites and hormones of cull beef cows. Veterinary Record 107:559–560.Google ScholarPubMed
Galbraith, H., Hatendi, P. R., Alderson, E. M. and Scaife, J. R. 1990. The effect of cimaterol and oestradiol-17β alone or combined on growth and body composition of wether lambs. Animal Production 51: 311–319.Google Scholar
Galbraith, H. and Topps, J. H. 1981. Effect of hormones on the growth and body composition of animals. Nutrition Abstracts and Reviews, Series B 51:521–540.Google Scholar
Hanrahan, J. P., Fitzsimmons, J. M., McEwen, J. C., Allan, P. and Quirke, J. F. 1987. Effects of the β-agonist cimaterol on growth, food efficiency and carcass quality in sheep. In Beta-agonists and their effects on animal growth and carcass quality (ed. Hanrahan, J. P.), pp. 106–118. Elsevier Applied Science, London.Google Scholar
Lawes Agricultural Trust. 1977. GENSTAT V, Mark 4.01. Rothampsted Experimental Station, Harpenden, Hertfordshire.Google Scholar
Lobley, G. E., Walker, A., Connell, A. and Galbraith, H. 1983. The effect of trenbolone acetate on growth rate and carcass composition of young female rabbits. Animal Production 36:111–115.Google Scholar
Macrae, J. C., Skene, P. A., Connell, A., Buchan, V. and Lobley, G. E. 1988. The action of the P-agonist clenbuterol on protein and energy metabolism in fattening wether lambs. British Journal of Nutrition 59: 457–465.CrossRefGoogle Scholar
Sillence, M. N., Thomas, K. M., Anil, H., Redfern, E. J. and Rodway, R. G. 1987. Adrenal function in lambs treated with androgenic and oestrogenic growth stimulants. Animal Production 44: 241–249.Google Scholar
Singh, S. B., Galbraith, H., Scaife, J. R. and Hunter, E. A. 1985. Effect of oestrogenic and androgenic compounds on growth and body composition of male castrate sheep. Proceedings of the Nutrition Society 44: 93A (abstr.).Google Scholar
Sinnett-Smith, P. A., Dumelow, N. W. and Buttery, P. J. 1983. Effects of trenbolone acetate and zeranol on protein metabolism in male castrate and female lambs. British Journal of Nutrition 50: 225–234.CrossRefGoogle ScholarPubMed
Sulieman, A. H., Galbraith, H. and Topps, J. H. 1986. Growth performance and body composition of early weaned wether lambs treated with trenbolone acetate combined with oestradiol-17β. Animal Production 43: 109–114.Google Scholar
Sulieman, A. H., Galbraith, H. and Topps, J. H. 1988. Growth performance and body composition of wether lambs implanted at two different initial live weights with trenbolone acetate combined with oestradiol-17β. Animal Production 47: 65–74.Google Scholar