@conference {40196,
	title = {Pasture dry matter and drinking water intake of grazing red deer stags and steers},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {50},
	year = {1990},
	month = {Jan},
	pages = {55-58},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {There has been considerable interest recently in the use of   growth hormone (somatotrophin) to enhance growth, carcass   leanness and milk yield in a number of species. Despite the similarity   of bovine and ovine growth hormone, the administration of exogenous   somatotrophin to lambs has produced disappointing results. Conceivably,   stimulation of endogenous GH secretion may be more beneficial, and in   this communication we present our preliminary results on the effective   doses and rates of administration of growth hormone releasing factor in   a study of the neuroendocrine regulation of growth hormone secretion in   sheep. Sheep were housed indoors on a complete pelleted diet and were   fitted with jugular vein catheters. Some sheep were also fitted with   cannulae placed in a lateral ventricle of the brain. Bovine GRF was   given at different doses to the sheep either intravenously   (iv), intracerebroventricularly (icv) or intramuscularly   (im) and plasma GH levels monitored. There was a dose-dependent   increase in GH levels when the GRF was given iv, with both 30 and   3 ug being effective, while im administration was only effective at 30   ug. Central administration (icv) was also effective at both   dose but did not stimulate GH release at 300 ng. Further studies are   required to elucidate the mechanisms underlying GRF stimulation of GH   release, but the efficacy of GRF as a growth promoter can be   investigated using intramuscular administration.    },
	issn = {1176-5283},
	author = {Alexander GL and Segiura T}
}
