@conference {40946,
	title = {Use of pregnant dairy cows in product development of the intravaginal progesterone releasing (CIDR) device.},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {57},
	year = {1997},
	month = {Jan},
	pages = {242},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {This study aimed to confirm that pregnant cows could be used to study release rates of progesterone (P4), the hormone of {\textquoteleft}pregnancy{\textquoteright}, from the CIDR device without compromising pregnancy. The seasonal nature of the New Zealand dairy operation presents only a brief window for large scale CIDR studies, if the treatment system is limited to non-pregnant cows.},
	issn = {1176-5283},
	author = {Burke CR and Burggraaf S and Bunt C and Rathbone M and Macmillan KL}
}
