@conference {69488,
	title = {Effect of twinning and sex on carcass weight and composition in lambs},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {70},
	year = {2010},
	month = {Jun},
	pages = {133-136},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Palmerston North},
	abstract = {Lamb producers are being provided with strong incentives to gain better control over the growth performance of their animals. These incentives are driven by increased demand for lean product of consistent quality, rigid market specifications, and significant penalties when carcasses do not meet the criteria imposed by processors. Feed conversion efficiency is enhanced whenthe ratio of lean to fat deposition is improved (Sillence, 2004). This is an important consideration for producers due to rising costs of generating high quality feed. Hence, increasing the proportion ofcarcasses that meet market specifications can improve the profitability of a lamb-production enterprise.},
	issn = {1176-5283},
	author = {McCoard SA and Koolaard J and Charteris A and Luo D}
}
@conference {60974,
	title = {Exploring the relationships between plant chemical composition and nitrogen partitioning in lactating dairy cows fed ryegrass-based diets},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {69},
	year = {2009},
	month = {Jun},
	pages = {188-195},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Christchurch},
	abstract = {Data from experiments in which cows consumed ryegrass-based diets were used to evaluate the effects of plant constituent concentrations and nutrient ratios on the partitioning of nitrogen (N) secreted into milk and excreted as waste products (urine + faeces). The data set used from 32 publications with 170 treatment means, was derived from studies where freshly-cut or grazed pasture comprised more than 70 \% of the total diet on a dry matter basis. The objectives were to identify suitable predictors of N partitioning, both across and within studies, and to examine the relative weight these predictors have on the partitioning of dietary N. Total excretion of N (g/d) and urinary N (g/d) were best predicted by the single predictor crude protein concentration, but better relationships were obtained by adding water soluble carbohydrate (WSC) and neutral detergent fibre concentrations to the models. Although significant across studies, no single plant constituent variable was selected using the meta-analytical approach. The most reliable predictions of N in waste products and urine required measures of N intake for urinary N excretion, or in combination with total OM intake for total N excretion. },
	issn = {1176-5283},
	author = {Vibart RE and Koolaard J and Barrett BA and Pacheco D}
}
