title: Effect of hexoestrol on the response of finishing steers to treatment with trenbolone acetate.
abstract: The relative effectiveness of implanting 300 mg trenbolone acetate alone or in combination with either 15, 30 or 45 mg hexoestrol was studied in three 90-day experiments using 64 Friesian steers. In experiment 1 hexoestrol was shown to improve live-weight gain and efficiency of feed conversion in steers implanted with trenbolone acetate. In experiments 2 and 3 trenbolone acetate in combination with 30 mg hexoestrol gave a better growth response than when combined with either 15 or 45 mg. However, in experiment 3 trenbolone acetate plus 15 mg hexoestrol was shown to improve live-weight gain by about 36 per cent compared with untreated controls. In experiment 2 small differences between treated groups in mean values for plasma urea, serum albumin, plasma glucose and free fatty acids were recorded.
mesh_terms: D000818:Animals; D001835:Body Weight; D002417:Cattle / Q000097:blood / Q000254:growth & development*; D004963:Estrenes / Q000494:pharmacology*; D006589:Hexestrol / Q000494:pharmacology*; D008297:Male; D014204:Trenbolone Acetate / Q000494:pharmacology*
chemical_list: D004963:Estrenes; D006589:Hexestrol; D014204:Trenbolone Acetate