@conference {40842,
	title = {A comparison of unbred and once-bred lamb production},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {56},
	year = {1996},
	month = {Jan},
	pages = {307-309},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {The once-bred lamb (OBL) production system involves mating ewe  lambs at 8 months of age to be slaughtered at approximately 15 months of  age after rearing a lamb. This study compared the performance of bred ewe  lambs (},
	issn = {1176-5283},
	author = {Johnston JB and Morris ST and Purchas RW and McCutcheon SN and Parker WJ}
}
