@conference {40166,
	title = {Romney male and female heritabilities and genetic correlations for weaning, autumn and spring body weights and hogget fleece weights},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {49},
	year = {1989},
	month = {Jan},
	pages = {191-196},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Five mixed-age Coopworth ewes were offered a pelleted low Mg (1.0 g Mg/kgDM) diet at the rate of 800 g/d for 2 months. Five levels of MG (0, 0.5, 1, 2 and 4 g Mg/d) in 230 ml deionised water were infused into the distal ileum for 48 h, followed by a recovery period of 24 h. The treatments were randomly allocated to each animal using a latin square design. Mg absorption from the large intestine was estimated from changes in plasma Mg concentration and urinary Mg excretion rate. Twelve h after commencement of infusion, plasma Mg concentration was higher at 4 g Mg than at 0g. There was a positive relationship between the amount of Mg infused and urinary Mg excretion. However, the percentage of infused Mg that was absorbed declined from 18.2\% to 6.9\% when Mg infusion rate was increased from 0.5 to 4 g Mg/d. In a second experiment, using a cross-over design, increasing the amount of water infused, with 4g Mg/d, from 230 to 2300 ml decreased urinary Mg excretion. The results show that Mg can be absorbed from the large intestine in significant amounts and indicate that a passive transport mechanism may be involved.},
	issn = {1176-5283},
	author = {Parratt AC and Nicoll GB and Alderton MJ}
}
@conference {40088,
	title = {Carcass composition of exotic sheep breeds},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {48},
	year = {1988},
	month = {Jan},
	pages = {53-56},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {Clarke JN and Parratt AC and Malthus IC and Amyes NC and Uljee AE and Woods EG}
}
@conference {39929,
	title = {Methods of ranking two-tooth rams for fat-free carcass growth rate},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {44},
	year = {1984},
	month = {Jan},
	pages = {253-256},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Eight herds each of 24 Friesian cows were stocked at 3.7 cows/ha on separate farmlets during 1982-83 and 1983-84. Annual production per5 hectare averaged 710 kg fat, 537 kg protein, 740 kg lactose and 16.7 t solids corrected milk (SCM). Annual DM intake was 15.8 t/ha and live weight (LW) during lactation, 1487 kg/ha. In a contemporary farmlet trial at an adjoining dairy, 4 purebred Jersey herds each of 15 cows were stocked at 2.8, 3.3, 3.8 and 4.3 cows/ha. Regression analysis was used to derive estimates of the performance of the Jerseys at the same stocking rate, and at a stocking rate that resulted in the same LW/ha, as the Friesians. At a common stocking rate of 3.7 cows/ha, the Friesians were estimated to produce 7, 15, and 13\% more fat, protein, and SCM/ha than the Jerseys. Annual conversion efficiency (g milk constituent/kg DM) of the Friesians was estimated to be 10\% higher for fat and 18\% higher for milk solids than the Jerseys. At the same LW/ha, requiring a Jersey stocking rate of 4.21 cows/ha, the Friesians were estimated to outproduce the Jerseys by 3, 13 and 10\% for fat, protein and SCM/ha respectively. Annual conversion efficiency for the Friesians was estimated to be 15 and 25\% higher for fat and milk solids respectively than for the Jerseys. For Jerseys, estimated maximum yields per hectare of milkfat and milk solids were at 4.45 and 4.37 cows/ha and were 686 kg fat/ha and 1761 kg milk solids/ha; 4 and 13\% respectively less than produced by the Friesians stocked at 3.7 cows/ha. The superior production of the Friesians was due to their higher food conversion efficiency, not to the higher food intake.},
	issn = {1176-5283},
	author = {Nicol AM and Parratt AC}
}
