Production, Economic Performance and Optimum Stocking Rates of
Holstein-Friesian and Jersey Cows
G. Ahlborn, A.M. Bryant
Livestock Improvement, New Zealand Dairy Board, Private Bag,
Hamilton, New Zealand
Proceedings of the New Zealand Society of Animal Production.
1992, 52: 7-10
Stocking rates for maximum production and economic performance
of Holstein-Friesians and Jerseys were predicted by calculating response
curves from the regression equations of stocking rate on cow
performance. Holstein-Friesians produced higher yields, gross milk
incomes and net incomes per cow while Jerseys produced higher milkfat
and protein yields, gross milk incomes and net incomes per ha when both
breeds were stocked at the same liveweight or for maximum production or
optimum economic performance. Maximum net income based on 1990/91 costs
and prices occurred at 3.0 and 3.7 cows/ha for Holstein-Friesians and
Jerseys respectively. At these stocking rates net income for Jerseys
was 5% higher than for Holstein-Friesians.
Keywords: NZSAPAB;
Milk production; economic performance; stocking rate; Holstein-
Friesians
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Last Updated 25-01-1997
