@conference {40309,
	title = {The effects of once daily milking as a management practice in late lactation},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {51},
	year = {1991},
	month = {Jan},
	pages = {191-196},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Five goats were milked hourly for 43 h on two occasions, on one  occasion receiving injections of growth hormone (GH; 15 mg S.C.) after 4  and 28 h of the milking period and on the other occasion were untreated.  Blood samples were taken before each milking, the latter facilitated by  intravenous injection of oxytocin (100 m i.u.).   Milk yield began to rise 4-5 h after the injection of GH and continued  to rise for a further 8-9 h until a level of production 18\% above the  pre-treatment yield was achieved. Following the second injection of GH  the yield increment was reduced such that by the end of the experiment  the yield increase was 24\%. In one goat the milk yield response was not  sustained and these data were excluded from the above calculations.   Plasma insulin-like growth factor-I (IGF-I) and insulin concentrations  increased in a similar time-course to the change in milk yield  following GH treatment but were relatively constant in control  experiments. IGF-I and insulin content of plasma was approximately  doubled by GH treatment by the end of these experiments.  },
	issn = {1176-5283},
	author = {Lynch GA and Hunt ME and MacKenzie DDS}
}
