@conference {40319,
	title = {Alternative and supplements to pasture for growing lambs in winter},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {51},
	year = {1991},
	month = {Jan},
	pages = {249-254},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {The Wairunga flock was established in 1956. It has since been  selected for production traits and, recently, also for {\textquoteright}disease{\textquoteright} traits  (resistance to footrot, dags and internal parasites). Records of  weaning weight, autumn weight, winter weight, faecal egg count (FEC) and  fleece weight have been collected on ewe and ram lambs from the 1987-  born crop onwards, in a management programme which involved withholding  anthelmintic drench for a monitored period in autumn. Dag scores have  also been taken at the time of faecal sampling from the 1988-born crop  onwards. Experiences already show that there is keen interest from ram  buyer clients in 2-tooth rams that have grown without a drench. Results  show significant potential savings in numbers of drenches on weaned  lambs, and large differences among sire groups in the parasite  susceptibility of progeny groups. Because of the need to withhold  drenches, a major change in the whole concept of ram breeding and  performance testing will be required by ram breeders and their clients  before much progress can be made in breeding for resistance to internal  parasites.  },
	issn = {1176-5283},
	author = {Bray AR and Moss RA and Burton RN}
}
