Article
Variations in quality of frozen-thawed semen from Swedish Red and White AI sires at 1 and 4 years of age.
International journal of andrology - 1 Jun 2004
Hallap Triin, Håård Margareta, Jaakma Ulle, Larsson Birgitta, Rodriguez-Martinez Heriberto
Abstract excerpt
The predictability of semen quality of mature sires from measurements at an early age is not well established. The aim of the present study was to determine age-dependent changes in the quality of bull semen for artificial insemination (AI). Semen was collected and frozen from each of six Swedish Red and White (SRB) dairy AI bulls when they were 1 and 4 years old. Three batches were randomly selected from each...
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