The influence of rams on the onset of the breeding season in ewes


D.G. Edgar and D.A. Bilkey

Ruakura Animal Research Station, Hamilton

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Proceedings of the New Zealand Society of Animal Production. 1963, 23: 79-87

Earlier introduction of rams advanced the breeding season and consequently the date of lambing in both young and mature Romney ewes in New Zealand. Vasectomized rams were less successful in this and sometimes had no effect.

Keywords: NZSAPAB;


Last Updated 24-08-2000