Effect of age at first calving on longevity and fertility traits for Holstein cattle

Effects of age at first calving (AFC) on functional longevity of Czech Holstein cows and their reproduction traits in the first lactation were analyzed using the first lactation data of 605 538 Holstein cows first calved from 1993 to 2008. Three classes were formed for AFC: low age class (16-24 mont...

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Bibliographic Details
Main Authors: L. Zavadilová, M. Štípková
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2013-02-01
Series:Czech Journal of Animal Science
Subjects:
Online Access:https://cjas.agriculturejournals.cz/artkey/cjs-201302-0001_effect-of-age-at-first-calving-on-longevity-and-fertility-traits-for-holstein-cattle.php