Investigation into the possibility of a major gene for fleece weight in screened sires

T. Wuliji, K.G. Dodds, P.F. Fennessy, R.N. Andrews, J.C. McEwan, P. Turner, R. Wheeler, the Late H. Hawker

AgResearch, Invermay Agricultural Centre, Private Bag 50034, Mosgiel, New Zealand

Proceedings of the New Zealand Society of Animal Production. 1993, 53: 355-358

Progeny test mating was carried out for 7 high fleece weight (HFW) and 5 random control (RC) sires from the Woodlands breeding flocks in 1987, and for a 4 HFW sires in 1988. In 1990, 8 of the surviving HFW sires were backcross mated to their daughters (born in 1987 and 1988). There was no evidence for any of these sires being heterozygous, or for any of the sires involved in the backcross being homozygous, for a major gene which affects either fleece weight or liveweight.

Keywords: NZSAPAB; Progeny; major gene; fleece weight; Romney; backcross.

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Last Updated 25-01-1997