@conference {41107,
	title = {Brief Communication: The combination of the n-alkanes and the 13C methods as a new tool for estimating individual DM intakes of pasture and maize silage by grazing dairy cows},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {59},
	year = {1999},
	month = {Jan},
	pages = {156-157},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {It is very difficult to measure DM intakes by indi-vidual grazing animals, particularly if these animals are being supplemented as a group, and the individual intakes of both pasture (P) and supplement are of interest. When the supplement is maize silage (MS), the difference in the proportions of the stable isotope 13 C between temperate P and MS could be combined with the n-alkane method for this purpose. The experiment described here was conducted to test this method and also to measure the variation be-tween individual cows in the amount of MS eaten daily.},
	issn = {1176-5283},
	author = {Garcia SC and Holmes CW and Hodgson J and MacDonald A}
}
@conference {40988,
	title = {The effect of calving season on milk production. A system study.},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {58},
	year = {1998},
	month = {Jan},
	pages = {61-63},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {A 3-year trial is being conducted at No1 Dairy Farm, Massey University, to compare the effect of calving season on the whole system of production, and the results of the first year are presented here. Three different systems were implemented by stocking each farmlet (40 ha) with Friesian cows which calved either in Autumn (A), in Spring (S) or 50\% in A and 50\% in S (A/S). Average stocking rate (SR) was 2, 2.25 and 1.95 cows per ha, respectively. A larger area was conserved as silage in A than in A/S and S, which also affected pasture growth rate in Spring. More supplements (t DM/cow) were fed in A (1.2) than in A/S (0.8) or in S (0.4). The higher yield of milk solids (MS) per cow for cows which calved in Autumn compensated the lower stocking rates of those herds and resulted in similar levels of production per ha (705-725 kg MS) for all three systems. These first year results suggest that similar levels of production per ha can be achieved with different calving systems and they emphasise the importance of farm systems studies as a research tool. },
	issn = {1176-5283},
	author = {Garcia SC and Cayzer FJ and Holmes CW and MacDonald A}
}
