Segregation of a major gene influencing ovulation rate in
progeny of Booroola sheep in commercial and research flocks
G.H. Davis, R.W. Kelly
Invermay Agricultural Research Centre, Ministry of Agriculture
and Fisheries, Mosgiel
Proceedings of the New Zealand Society of Animal Production.
1983, 43: 197-200
Ovulation rate records from female progeny of 3 Booroola-type
rams and the daughters of 8 to 10 male progeny of the same rams were
recorded in commercial flocks. When a segregation criterion of at least
1 record of ovulation rate >/-3 was used to identify carriers of the
putative gene, the results support the hypothesis of genetic segregation
for fecundity in Booroola sheep.
A comparison of the genotype ascertained from progeny tests with that
estimated from the parental genotypes showed that 21 of 22 rams'
performance was consistent with a single gene effect.
Keywords: NZSAPAB;
Booroola; ovulation; sheep; breeding methods; animal breeding;
progeny testing
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Last Updated 03-05-1997
