Article
Age-dependent genetic and environmental variance of semen quality in Nordic Holstein bulls.
Journal of dairy science - 1 Apr 2023
Salimiyekta Y, Jensen J, Su G, Gebreyesus G
Abstract excerpt
The aim of this study was to estimate genetic and environmental parameters, across bull's age, for semen quality traits including pre- and postcryopreservation semen concentration, sperm motility, and sperm viability as well as ejaculate volume and number of doses per ejaculate. A data set on 96,595 ejaculates from 2,831 Nordic Holstein bulls collected between 2006 and 2019 was used. Genetic and environmental...
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