@conference {40683,
	title = {Evaluation of muscling using Texel and Oxford cross Romney and Hight Romney lambs},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {55},
	year = {1995},
	month = {Jan},
	pages = {108-110},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Selection for out-of-season breeding ability could be enhanced if an  early indication of the trait was available. The onset of hogget oestrus has  been proposed as such a trait and has been examined for 362 ewe progeny  coming from early and late-lambing selection lines over 3 years.   In each year the early lambing (BV-) hoggets had an earlier (P<0.05) mean  date of onset of oestrus than the hoggets from the late-lambing (BV+) line.   In 1992 and 1993 this effect was confounded by the season of birth such that  nearly all the BV- animals were autumn born (AB) and the BV+ animals  born in the spring (SB). In 1993 animals from both lines were produced in  both seasons. Their mean day of first oestrus in 1994 (expressed as day of  year },
	issn = {1176-5283},
	author = {Kirton AH and Mercer GJK and Clarke JN and Dobbie JL and Duganzich DM and Wilson JA}
}
