Meta-analysis of seminal traits affecting bull fertility.

The pedigree information on bulls was collected from Frozen Semen Bank (FSB). Male reproductive data on seminal characters (semen volume (SV), sperm concentration (SC), initial progressive motility (IPM), post-thaw motility (PTM), and total spermatozoa (TS)) were analyzed to calculate their repeatability, heritability, genetic correlation, phenotypic correlation, and environmental correlation values. The principal component analysis revealed SV and SC were the two most important characters among the five seminal characters that can be further used.