Export 11 results:
Filters: Author is Xu ZZ  [Clear All Filters]
2006
Development of new fertility breeding values in the dairy industry, BL, Harris, JE Pryce, ZZ Xu, and WA Montgomerie , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 66, Napier, p.107-112, (2006)
2004
Effect of timing of insemination of dairy cows with liquid semen relative to the observation of oestrus, R, Vishwanath, J Melis, DL Johnson, and ZZ Xu , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 64, Hamilton, p.140-142, (2004)
2001
Relationship between bulk milk urea nitrogen and reproductive performance of New Zealand dairy herds, JF, Smith, S Beaumont, L Hagemann, RM McDonald, AJ Peterson, ZZ Xu, and DM Duganzich , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 61, Christchurch, p.192-194, (2001)
2000
Factors affecting the sex ratio of dairy cattle in New Zealand, ZZ, Xu, DI Johnson, and LJ Burton , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 60, Hamilton, p.301-302, (2000)
1996
Assessment of female traits for genetic improvement of fertility in dairy cattle, T, Grosshans, ZZ Xu, and LJ Burton , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 56, p.27-31, (1996)
Genetic parameters for fertility traits in seasonal dairy cattle, T, Grosshans, ZZ Xu, LJ Burton, and DL Johnson , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 56, p.38-41, (1996)
Prospects for overcoming the physiological limits of dairy cow fertility, R, Vishwanath, ZZ Xu, and KL Macmillan , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 56, p.355-357, (1996)
Reproductive efficiency in lactating dairy cows, ZZ, Xu, and LJ Burton , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 56, p.34-37, (1996)
1995
Reproductive performance of synchronised lactating dairy cows, ZZ, Xu, JR Burton, LJ Burton, and KL Macmillan , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 55, p.242-244, (1995)
1992
Testis size and endocrine parameters in rams as predictors of aseasonality in their daughters, ZZ, Xu, MF McDonald, SN McCutcheon, and HT Blair , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 52, p.195-198, (1992)
1989
The effect of exogenous melatonin, administered in summer, on wool growth and testis diameter of Romneys, PM, Harris, ZZ Xu, HT Blair, DW Dellow, SN McCutcheon, and J Cockrem , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 49, p.35-38, (1989)