@conference {40655,
	title = {Effects of induced parturition on mammary function},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {55},
	year = {1995},
	month = {Jan},
	pages = {21-22},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Four 6.4 ha farmlets each stocked with 24 high genetic merit  Friesian cows were used to determine the effect of nitrogen fertiliser  (N), and a long summer grazing rotation on pasture and milk production  in summer. Treatments were 0 )-N) or 50 kg N/ha (+N) in December,  January and March and a 16 day (16) or 40 day (40) rotation. Treatments  started 15 December, following a two week uniformity period, and ran  until 29 April.    On the 16 and 40 day rotations N increased net herbage accumulation by  0.8 t DM/ha, and milksolids (MS) production by 92 and 38 kg/ha  respectively. Across both nitrogen treatments, the 40 day rotation  increased net herbage accumulation by 1.7 t DM/ha. The MS production  was 39kg/ha greater on the -N40 than the -N16 treatment whereas that of  the +N16 and +N40 did not differ significantly.    The N and long rotation treatments also resulted in higher average  herbage mass and cow condition at the end of the experimental period.  It is concluded that N in early summer and a long summer rotation are  useful management practices to reduce the effects of summer dry periods.   },
	issn = {1176-5283},
	author = {McFadden TB and Verkerk GA and Clark BA and Hovey RC and Macmillan KL}
}
