@conference {40755,
	title = {Using genetic variation for greater profit},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {55},
	year = {1995},
	month = {Jan},
	pages = {328-330},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Over 20 years ago, cooperative group breeding schemes screened  large gene pools to establish ram breeding flocks. This process  invariably exploited differences between animals within a breed and not  differences between animals regardless of breed. This paper describes  the establishment and operation of Landcorp Farming Limited{\textquoteright}s Lamb  Supreme (LS) terminal sire breeding programme and presents results of a  comparative slaughter trial for discussion.    In 1989 and 1990 Landcorp screened a total of 3,685 ewe hoggets from  501,000 animals. The progeny from 3 years{\textquoteright} mattings of these screened-  in ewes constituted the nucleus flock of the LS programme. The progeny  of rams from this flock mated to commercial Romney ewes were compared  with straightbred Romneys (R) in a slaughter trial in three slaughters  from January to May 1994.    At the three slaughter dates, LS lambs had heavier pre-slaughter  liveweights and carcass weights than R lambs and were no fatter when  adjusted to the same mean carcass weight. Net returns averaged more per  LS cross lamb than per straightbred R lamb.   },
	issn = {1176-5283},
	author = {Nicoll GB}
}
