The effect of hexoestrol implants on sucking and weaned lambs fattened on farms in the north-east of Scotland

Author:

Preston T. R.,Greenhalgh Isoline,MacLeod N. A.

Abstract

1. 768 lambs on fourteen farms in the north-east of Scotland were divided into a control group and groups receiving two 5 mg., three 5 mg., two 7·5 mg., and one 15 mg. pellet of hexoestrol.2. On every farm the mean rate of live-weight gain of the treated lambs was greater than that of the controls.3. There appeared to be very little difference between implantations of two 5 mg., three 5 mg. and two 7·5 mg. pellets of hexoestrol but on four farms where a direct comparison was made one 15 mg. pellet was slightly inferior to three 5 mg. pellets.

Publisher

Cambridge University Press (CUP)

Subject

Animal Science and Zoology

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