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2. II. Effects of age of ewe, live weight, and paddock size on duration of oestrus and ram-seeking activity;Allison;N.Z. J. Exp. Agric.,1976
3. Trait economic weights for genetic improvement with SIL;Amer;Proc. N.Z. Soc. Anim. Prod.,2000
4. Quantitative genetic selection for twinning rate in ewes;Amer;Proc. N.Z. Soc. Anim. Prod.,2006
5. Economic values for ewe prolificacy and lamb survival in New Zealand sheep;Amer;Liv. Prod. Sci.,1999