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2001
Factors associated with the incidence of 'Phantom cows' in Australian dairy herds, DP, Nation, J Morton, J Cavalieri, and KL Macmillan , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 61, Christchurch, p.180-183, (2001)
1998
Factors influencing the prevalence of postpartum anoestrus in New Zealand dairy cows, FM, Rhodes, BA Clark, DP Nation, VK Taufa, KL Macmillan, ML Day, AM Day, and S McDougall , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 58, p.79-81, (1998)
Ovarian volume is a predictor of the resumption of spontaneous oestrous cycles but not the response to the treatment of anoestrus., DP, Nation, FM Rhodes, AM Day, and KL Macmillan , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 58, p.88, (1998)
1997
Effect of hormonal environment at emergence on persistence of ovarian follicles in cattle, ML, Day, CR Burke, DP Nation, FM Rhodes, and KL Macmillan , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 57, p.239-240, (1997)
Efficacy of an anoestrous treatment for dairy cows is reduced if administered within 3 weeks of calving., DP, Nation, KL Macmillan, and VK Taufa , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 57, p.228-230, (1997)
The responses of lactating cows treated for anoestrus to an oestradiol capsule or an oestradiol injection., VK, Taufa, KL Macmillan, DP Nation, AM Day, and MJ Ashcroft , Proceedings of the New Zealand Society of Animal Production, Jan, Volume 57, p.241, (1997)