@conference {40181,
	title = {Early lambing in Hawkes Bay: Use of the ram effect},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {49},
	year = {1989},
	month = {Jan},
	pages = {271-276},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Three trials involving a total of 345 animals have been conducted in widely separated geographical regions in New Zealand, using a similar trial design to compare different treatment regimes for invermectin in beef weaners. Commencing at weaning and continuing into late winter/spring, trial animals received ivermectin subcutaneously at 200 },
	issn = {1176-5283},
	author = {Muir PD and Smith NB and Wallace GJ}
}
