@conference {40402,
	title = {The effect of pretreatment with progesterone on the oestrous response to oestradiol-17Beta benzoate in the post-partum dairy cow},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {52},
	year = {1992},
	month = {Jan},
	pages = {157-160},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Crossbreeding with Booroola Merino rams was initiated in 1986 in  Israel to transfer the FecB allele to the Awassi (Aw) and the Assaf (As)  dairy breeds to increase their prolificacy. The prolificacy of the F1  ewes was higher by about 0.6 lambs/ewe lambing (P<0.05) over the  prolificacy of Aw and As ewes. Growth rate up to 150 days of age did not  differ between As, },
	issn = {1176-5283},
	author = {McDougall S and Burke CR and Macmillan KL and Williamson NB}
}
