@conference {40836,
	title = {A whole farm approach to feed planning and ration balancing using UDDER and CAMDAIRY},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {56},
	year = {1996},
	month = {Jan},
	pages = {285-288},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {The potential of New Zealand cows for milk production remains  substantially under-utilised as a consequence of pasture-based feeding  systems. One means to increase per cow production is to balance pasture  diets to provide the correct quantities and ratios of nutrients to meet target  levels of milksolids production, but this needs to be done in a manner which  is profitable and consistent with good pasture management. The dairy farm  simulation model, UDDER, was used to evaluate supplementation strategies  for early and late lactation in order to increase milk yields per cow and the  farm gross margin. A sample of diets from UDDER were then tested with a  ration balancing model (CAMDAIRY) to identify nutrient limitations to  milk production. Undegraded protein (UDP) was limiting in all diets. It was  concluded that, ration balancing would be useful aid to feed management on  New Zealand dairy farms, but in practice could only be sensibly used if feed  and animal monitoring systems are in place to determine the type(s) and  period(s) of supple},
	issn = {1176-5283},
	author = {Uribe JV and Parker WJ and Dake CKG and McDonald A}
}
