@conference {39937,
	title = {Effects of varying feeding time on diurnal calving patterns in dairy cows},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {45},
	year = {1985},
	month = {Jan},
	pages = {35-38},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Season has important effects on reproduction in cows, although they may ovulate throughout the year. During winter, the effects of season delay puberty, prolong post-partum anoestrus and reduce fertility. There are seasonal differences in gonadotrophin secretion, pre-ovulatory follicular development and corpus luteum function. Furthermore, effects of season are more likely to be expressed when factors such as nutrition, age and lactation limit reproduction performance. Significant interactions occur between season and nutrition in the onset of puberty and the length of the post-partum anoestrous interval. In the pasture-based agricultural system in New Zealand, minimum feed supply occurs in winter when season depresses cow reproductive performance. A concentrated calving pattern is essential to improve feeding management and herd performance. To maintain a concentrated calving and high weaning percentage, calving date must be adjusted to reduce the effects of season and improve herd nutrition.},
	issn = {1176-5283},
	author = {Macmillan KL and Pearce MG and Copeman PJA and MacDonald KA and Kilgour R}
}
@conference {39863,
	title = {Zinc sulphate in the drinking water of lactating dairy cows for facial eczema control},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {43},
	year = {1983},
	month = {Jan},
	pages = {217-220},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {The live-weight response of light and heavy ewes to a range of pasture allowances was investigated in 3 experiments. Differential feeding levels prior to the commencement of Expt. 1 generated light and heavy ewes (52 v 57 kg live weight, P<0.001; 3.5 v 4.1 body condition score, P<0.01) that were subsequently offered pasture allowances of either 1, 2 or 4 kg DM/ewe/d for a 10-week period. Light ewes gained more weight than heavy ewes on all allowances. With time, ewes tended to approach a constant live weight in equilibrium with their level of feeding. Both light and heavy ewes harvested pasture to similar post- grazing residuals and rejected the dead material in the sward. In Expts, 2 and 3 low and high live weight ewes were selected from within large flocks of 4-tooth ewes that had been run as 1 mob (live weight 38 v 49 kg Expt. 2, 41 v 55 kg Expt. 3, P<0.001; body condition 1.8 v 2.4 Expt 2, 2.1 v 3.1 Expt, 3, P<0.01). Light and heavy groups were most grazed separately on allowances of 1.2 or 4 kg DM/ewe/d for 6 weeks although Expt. 3 partly comprised mixed groups for assessment of competition effects. No such effects were apparent on the higher allowance where light and heavy ewes had similar live-weight gains. On the lower allowance however, light ewes were more responsive than their heavier counterparts with this being less pronounced under mixed grazing. The implications for flock management are discussed.},
	issn = {1176-5283},
	author = {Smith BL and Embling PP and Pearce MG}
}
@conference {39712,
	title = {The hormonal induction of lactation in dry dairy cows - Brief Communication},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {41},
	year = {1981},
	month = {Jan},
	pages = {68-70},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {Davis SR and Welch RAS and Pearce MG and Peterson AJ}
}
