From true to functional longevity | Od prave k funkcionalni dolgozivosti
2012
Jenko, J., Agricultural Institute of Slovenia, Ljubljana (Slovenia). | Perpar, T.
For the replacement of true with functional longevity breeding values prediction the genetic parameters were evaluated on a population of 89,808 Holstein dairy cows with one of the first five calvings between the January 1, 1998 and December 31, 2008. Culling risk was reduced with an increase in milk yield, whereas an increase was observed when the milk yield was low. Heritabilities for true and f
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