@conference {40257,
	title = {A computational model to predict lamb growth},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {50},
	year = {1990},
	month = {Jan},
	pages = {449-452},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Two trials were conducted to study factors which influenced the   amount of progesterone (P4) remaining in a CIDR intravaginal device used   for a treatment period of 15 days and the associated plasma P4   concentrations. In the first trial, the initial P4 content of these   devices was varied from 0 to 2.67g P4. In the second trial, animals   were treated with either one or three devices which had been moulded to   contain the same amount of P4 (1.9g/device).     Increasing the initial P4 content of a device increased plasma P4   concentrations, but at a diminishing rate so that devices containing   1.86g P4 maintained similar levels of plasma P4 to devices containing   2.67g P4 (2.48 vs 2.63 ng/ml). This was associated with a quadratic   relationship in the residual P4 content in the used devices. Using   three devices per animal trebled plasma P4 concentrations and did not   alter residual P4 content.     These results indicated that P4 release is influenced more by device   characteristics than by animal variation.    },
	issn = {1176-5283},
	author = {Bell ST and Cropper MR and Poppi DP}
}
