@conference {40659,
	title = {The relationship between cortical structure and fibre diameter in primary and secondary wool fibres of yearling Perendale sheep},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {55},
	year = {1995},
	month = {Jan},
	pages = {31-34},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {The effects on bloat of herbage mass and of removing Poa  from pasture was investigated. Twelve paddocks were paired on pasture  composition in autumn and Poa seedlings were removed from one  paddock in each pair. Each paddock was halved and two levels of herbage  mass were established. The resulting treatments, high herbage mass with  Poa (H+P), high mass without Poa (H-P), low mass with  Poa (L+P), and low mass without Poa (L-P), were grazed by  four groups of six cows of high susceptibility to bloat over four 12-day  periods in spring. Herbage mass was 814 kg DM higher (P<0.001) before  grazing and 518 kg DM/ha higher (P<0.001) after grazing on H versus  L.Poa content (\% DM) was higher and white clover in +P compared  to -P (Poa 11 and 2\%, P<0.001; clover 16 and 26\%, P<0.001). The  average bloat score was highest on L-P and least on H+P and was 2.4  times greater on L than H and 5.5 times greater on -P than +P. Results  indicated that bloat could be manipulated by altering herbage mass, but  any effect on bloat of Poa was confounded with changes in white  clover content.   },
	issn = {1176-5283},
	author = {Dick JL and Sumner RMW}
}
