@conference {41292,
	title = {Effect of grain or buffer supplementation on milk solids yield and rumen fermentation patterns of cows grazing highly digestible herbage in spring},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {61},
	year = {2001},
	month = {Jan},
	pages = {224-228},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Christchurch},
	abstract = {Sixteen rumen-fistulated Holstein Friesian cows in early lactation were offered 40 kg herbage dry matter (DM)/cow/day (to ground level). The objective of the experiment was to investigate the economics of feeding cereal grain supplements to cows grazing highly digestible ryegrass herbage in spring and determine the impact of grain feeding on rumen conditions and milk composition. Six kilograms DM of cereal grain were offered to eight cows, while the other 8 cows did not receive grain. Superimposed on these grain supplementation rates were 0 or 300 g sodium bicarbonate in a 2x2 factorial design. The inclusion of grain in the diet reduced herbage intake (from 16.7 - 12.7 kg DM/day, P<0.01) and the neutral detergent fibre concentration of the total diet (from 410 g/kg - 325 g/kg DM). Grain feeding reduced milk fat concentration (from 41.7 - 34.3 g/kg, P<0.05) and increased milk protein concentration (from 32.8 - 34.6 g/kg, P<0.05). Grain feeding depressed the rumen fluid concentration of acetic acid and increased that of propionic acid, resulting in a lipogenic:glucogenic ratio (acetic + butyric:propionic acid ratio) below 3:1 for both grain treatments. The milk responses from cows consuming concentrates with highly digestible herbage in spring were low (-0.4 - 0 kg 4\% fat corrected milk/kg DM grain consumed) and did not improve the returns to farmers during the period of feeding. The most profitable use of concentrates is likely to come after spring calving cows have reached their peak and herbage quality begins to decline. },
	issn = {1176-5283},
	author = {Dalley DE and Roche JR and Grainger C}
}
@conference {39824,
	title = {Nutritional and physiological studies of differences between Friesian cows of high and low genetic merit},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {43},
	year = {1983},
	month = {Jan},
	pages = {67-70},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Fleece tenderness is a serious fault of New Zealand crossbred wool costing the sheep industry between $50 and $100 million annually. Wool fibres break at the point where fibre diameter is at its minimum and factors which influence minimum fibre diameter will influence the incidence of fleece tenderness, e.g. breed and strain of sheep, age of ewe, level of feeding and reproductive status. Tender fleeces are on average lighter than sound fleeces and often have other associated faults such as cotting and yellow discolouration. Variation in minimum winter fibre diameter accounts for only about 40\% of the variation in staple strength within a flock suggesting that factors other than fibre diameter may be involved. There are fibre structural and compositional differences between sound and tender wools of the same diameter and these may be associated with fleece tenderness. The wool producer can influence the incidence of fleece tenderness by the level of feeding during mid pregnancy but it may not always be economic to feed better. Choice of shearing time will also influence the level of fleece tenderness. A preliminary estimate of the heritability of fleece tenderness of 0.58 },
	issn = {1176-5283},
	author = {Davey AWF and Grainger C and MacKenzie DDS and Flux DS and Wilson GF and Brookes IM and Holmes CW}
}
@conference {39704,
	title = {The efficiency with which feed is utilised by the dairy cow},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {41},
	year = {1981},
	month = {Jan},
	pages = {16-27},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {Holmes CW and Davey AWF and Grainger C}
}
@conference {39705,
	title = {A model for analysing alternative feeding strategies during the lactation cycle},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {41},
	year = {1981},
	month = {Jan},
	pages = {28-33},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	issn = {1176-5283},
	author = {Townsley RJ and Grainger C and McGowan AA}
}
