The survival to 2, 3 and 4 lactations of British Holstein-Friesian dairy
cattle, linear type classified before September, 1984, was analysed at
the phenotypic level, fitting in the model all type traits including
total score and first lactation milk yield and composition. Total score
was found to have a significant effect on the survival of the cow, as did
a number of the linear type traits, specifically those relating to udders
and teats. Milk yield and fat percentage were highly significant, whereas
protein percentage removed little additional variation. A similar
analysis of sire breeding values for linear type traits found that, after
correcting for yield, total score fitted after the linear traits had
little effect on the survival of the progeny.
Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume XIV. Dairy cattle genetics and breeding, adaptation and conservation., , 209–212, 1990
|Download Full PDF||BibTEX Citation||Endnote Citation||Search the Proceedings|
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.