@conference {69020,
	title = {Amino acid flow at the abomasum in twin-suckling ewes at pasture and the effect of a fishmeal supplement},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {69},
	year = {2009},
	month = {Jun},
	pages = {233-237},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Christchurch},
	abstract = {Fourteen twin-suckling ewes with rumen and abomasal cannulae grazed a ryegrass/clover sward (C; n = 7) or the same sward but with a 500 g/h/d protein supplement (S; n = 7). The trial was designed as a cross-over with two 14 day adaptation periods followed by two five day sampling periods (Days 43-48 and 63-68 after lambing). All ewes were treated with anthelmintic 14 days after lambing. Flow of amino acids (AA) at the abomasum and dry matter (DM) intake were measuredduring both periods using intra-ruminally infused markers. Diurnal variation in AA flow peaked between 12:00 and 15:00 h and was greatest in the supplemented ewes. Flows of AA were increased by supplementation; Essential AA, +16 \%; 128 to 148 g/d, Sulphur-AA, +21.2 \%; 3.3 to 4.0 g/d, Branched-chain AA, +15.9\%, 47.8 to 55.4 g/d. There was evidence for a lower faecal egg count in supplemented animals, being 670 vs 46 epg, respectively, in C and S groups, (P = 0.08) 21 days after anthelmintic treatment. This work provides information on the extent of enhancement of the supply of amino acids associated with ability to limit the peri-parturient increase in faecal egg count and provides a basis for the development of supplements.},
	issn = {1176-5283},
	author = {Madibela OR and Gibbs SJ and Sykes AR and Laporte-Uribe J and Zhao J}
}
@conference {69022,
	title = {Differential passage of rumen bacterial populations to the abomasum in sheep : Brief Communication},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {69},
	year = {2009},
	month = {Jun},
	pages = {242-243},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Christchurch},
	abstract = {Ruminant microflora and fauna enable the degradation of otherwise poorly digestible feeds and are a principal source of metabolisable protein (Faichney, 1996). Rumen outflow, which is dependent on many factors including the physical characteristics of the diet and the level of feed intake, carries both nutrients and microorganisms to the abomasum. The proportional contribution of the various sub-populations of microorganisms to the total pool of abomasal protein is still poorly defined (Dewhurst et al., 2000). It is therefore possible that differences in motility or microhabitat between subpopulations may generate differential retention of certain groups.},
	issn = {1176-5283},
	author = {Laporte-Uribe J and Gibbs SJ}
}
@conference {60973,
	title = {Real time in situ measurement of rumen methane concentration in the rumen of cattle : Brief Communication},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {69},
	year = {2009},
	month = {Jun},
	pages = {184-187},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Christchurch},
	abstract = {Methane dominates agricultural greenhouse gas emissions in New Zealand (Leslie et al., 2008). Research efforts in New Zealand to date have been directed toward prediction of emissions, most often using the rumen gas marker sulphur hexafluoride (SF6) (Lassey et al., 1997) to predict methane emissions in grazing livestock. However, the errors associated with this method necessitate the use of multiple day sampling programmes and large numbers of individuals to overcome... Continued },
	issn = {1176-5283},
	author = {Laporte-Uribe J and Gibbs SJ}
}
