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Comparative performance and economic appraisal of Holstein-Friesian, Jersey and JerseyĆHolstein-Friesian cows under seasonal pasture-based management
Prendiville, Robert Shalloo, Laurence Pierce, K.M. Buckley, Frank
Prendiville, Robert
Shalloo, Laurence
Pierce, K.M.
Buckley, Frank
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2011
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Comparative performance and economic appraisal of Holstein-Friesian, Jersey and JerseyĆHolstein-Friesian cows under seasonal pasture-based management. R. Prendiville, L. Shalloo, K.M. Pierce, F. Buckley. Irish Journal of Agricultural and Food Research, Vol. 50, No. 2 (2011), pp 123-140
Abstract
The objective of this study was to provide comparative performance data for Holstein-
Friesian (HF), Jersey (J) and JerseyĆHolstein-Friesian (F1) cows under a seasonal
pasture-based management system and to simulate the effect of cow breed on farm
profitability. Data for a total of 329 lactations, from 162 (65 HF, 48 J and 49 F1) cows,
were available. Milk yield was highest for HF, intermediate for F1 and lowest for J, while
milk fat and protein concentrations were highest for J, intermediate for F1 and lowest
for HF. Yield of fat plus protein was highest for F1, intermediate for HF and lowest for J.
Mean bodyweight was 523, 387 and 466 kg for HF, J and F1, respectively. Body condition
score was greater for the J and F1 compared to HF. Reproductive efficiency was similar
for the HF and J but superior for the F1. The Moorepark Dairy Systems Model was used
to simulate a 40 ha farm integrating biological data for each breed group. Milk output
was highest for systems based on HF cows. Total sales of milk solids and, consequently,
milk receipts were higher with J and F1 compared to HF. Total costs were lowest with
F1 cows, intermediate with HF and highest with J. Overall farm profitability was highest
with F1 cows, intermediate with HF and lowest with J. Sensitivity analysis of milk
price, fat to protein price ratio and differences in cost of replacement heifers showed no
re-ranking of the breed groups for farm profit.