@conference {40821,
	title = {Brief Communication: Automatic oestrus detection from milking data - a preliminary investigation},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {56},
	year = {1996},
	month = {Jan},
	pages = {228-229},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {The solid fat content of milkfat has a major influence on the hardness of butter produced at dairy factories. The aim of this work was to study the variation in the solid fat content of milkfat from thirty herds in the factory collection area on a single dayto determine the extent of variation in the milk supply.
The solid fat content of the milkfat at 10{\textdegree}C varied from 49.6\% to 59.8\% between the individual herds. This variation in the milk from different herds is as large as the entire seasonal change observed in the bulked factory silo milk, indicating significantvariation in the properties of the milkfat within the factory supply on a single day.
Low solid fat content at 10{\textdegree}C was correlated with milk of low fat percent (r = 0.78, P< 0.0005) and high protein-to-fat ratio (r = -0.75, P< 0.0005). Though there was substantial variation in the solid fat content within the breeds, milkfat from Friesian herds had a significantly lower solid fat content than milkfat from Jersey herds (mean {\textpm} S.E., 54.4 {\textpm} 0.6 and 57.1 {\textpm} 0.6 respectively, P = 0.004). There appears to be considerable potential for exploitation of the natural variation in the properties of milkfat inherent in the New Zealand dairy herds.
},
	issn = {1176-5283},
	author = {Sherlock RA and Smith LA and Mitchell RS}
}
@conference {40478,
	title = {The effect of an extended milking interval on mammary blood flow and tight junctions between mammary cells in goats},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {53},
	year = {1993},
	month = {Jan},
	pages = {159-162},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Hereford x Friesian cows were used to compare the calf and cow performance of 66 single-calved cows (Single Cows) rearing only their own calf (Single Calf) and 45 contemporary single-calved cows (Foster Cows) rearing their own calf (Own Calf) plus a foster calf (Foster Calf). Fostering was succesful in 85\% and 95\% of attempts in 1990 and 1991, respectively. Mean weaning weight was lowest in the Foster Calf group but comparable in the Own Claf and Single Calf groups (140 vs 194 vs 202 kg, P<o.oo1). Single Cow and Foster Cow groups were similar in mean live weight immediately post-calving (413 vs 415 kg, NS) and at weaning time (452 vs 437 kg, NS), and the mean interval to first oestrus was about 7 weeks in both groups. Cow efficiency (ie calf weaned/kg cow post calving liveweight) was approximately doubled in the Foster Cow group. We conclude that twin-suckling dairy x beef breeding cows using a foster calf appears to be a useful option for dramatically increasing cow efficiency.},
	issn = {1176-5283},
	author = {Stelwagen K and Davis SR and Farr VC and Prosser CG and Sherlock RA}
}
