The economic values (EV) of production traits, rennet coagulation time (RCT, min), and curd firmness (a30, mm) were derived for Italian Holstein-Friesian dairy cattle, based on the Grana Padano cheese industry. Three different sets of EV for RCT and a30 were estimated, assuming +2.5% (scenario 1), +5% (scenario 2) and +10% (scenario 3) increments in cheese yield due to the effect of milk coagulation properties (MCP). A profit equation based on a linear model was developed to simulate the transformation of milk into Grana Padano cheese. The EV of RCT were -2.18, -4.36, and -8.71 Euro/min for scenarios 1, 2, and 3, respectively, and +0.86, +1.73, and +3.45 Euro/mm for a30, respectively. Relative emphasis of traits in the breeding objectives for Italian Holstein-Friesian dairy cattle population should account for the effect of MCP on cheese yield.

Economic values of milk production and milk coagulation properties in Italian Holstein-Friesian dairy cattle

CASSANDRO, MARTINO;DE MARCHI, MASSIMO;PENASA, MAURO;
2014

Abstract

The economic values (EV) of production traits, rennet coagulation time (RCT, min), and curd firmness (a30, mm) were derived for Italian Holstein-Friesian dairy cattle, based on the Grana Padano cheese industry. Three different sets of EV for RCT and a30 were estimated, assuming +2.5% (scenario 1), +5% (scenario 2) and +10% (scenario 3) increments in cheese yield due to the effect of milk coagulation properties (MCP). A profit equation based on a linear model was developed to simulate the transformation of milk into Grana Padano cheese. The EV of RCT were -2.18, -4.36, and -8.71 Euro/min for scenarios 1, 2, and 3, respectively, and +0.86, +1.73, and +3.45 Euro/mm for a30, respectively. Relative emphasis of traits in the breeding objectives for Italian Holstein-Friesian dairy cattle population should account for the effect of MCP on cheese yield.
2014
Proceedings of the 10th World Congress on Genetics Applied to Livestock Production
10th World Congress on Genetics Applied to Livestock Production
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/3125718
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