@conference {40252,
	title = {Responses to modern technology within the New Zealand sheep breeding industry},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {50},
	year = {1990},
	month = {Jan},
	pages = {423-426},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {In 34 lactating ewes (10 fistulated at the rumen and abomasum),   herbage intakes were calculated using herbage digestibilities estimated   either in vitro, or by using the plant cuticular wax component   pentatriacontane (C35 alkane) as an internal marker. Alkane-based   herbage intakes in intact ewes rose from 1672g OM/d at 14d of lactation   to 2798g OM/d at 42d. In the fistulated ewes, the equivalent herbage   intakes were 1736 and 2240g OM/d respectively. Alkane-based and in   vitro-based intakes were not significantly different at 14d of   lactation in either intact or fistulated ewes. Later in lactation,   alkane-based intakes were significantly higher in both groups of ewes.   In the fistulated ewes, estimates of the proportion of digested OM   apparently disappearing across the rumen and of the efficiency of   microbial protein synthesis were calculated from abomasal flows of   digesta and microbial protein. These results suggested that the alkane-   based herbage intakes were the more accurate.    },
	issn = {1176-5283},
	author = {Harvey TG and Haydon R and Blair HT and Daniell D and Hilson R}
}
