The effects of date of lambing (6 September, 23 September, 6 October) and rearing category (singles, twins) on ewe and lamb live weights and ewe wool production were examined in 1981 and 1982. Later lambing increased lamb growth in the first 6 weeks of lactation from 208 to 279 g/head/d for singles and 135 to 215 g/head/d for twins (P<0.001). Lambing date did not significantly affect lamb live weights at weaning on 5 January. Later lambing increased ewe greasy wool production between June and January by up to 0.41 kg (P<0.001).

JM, Munro, and KG Geenty

Proceedings of the New Zealand Society of Animal Production, Volume 43, , 41-42, 1983
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