Novel strategy to identify bull fertility markers

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The Canadian dairy industry generates 4.8 billions $ yearly. This industry depends on artificial insemination using semen from genetically superior bulls. International breeding trial programs indicated that daughters sired by bulls from North America were superior. Consequently, many developed countries imported several generations of genetically superior bulls from the Canadian insemination industry. As a consequence of inbreeding, fertility emerged as a growing challenge for this industry. Between 1990 and 2001, the Canadian dairy industry faced a 15% decline in fertility representing a major financial impact. The major objective of this CRD grant proposal is to develop diagnostic tools to evaluate fertility of bulls to help the artificial insemination industry in the selection of those individuals destined for semen production.