Genotyping has been utilized in the University of Wyoming Performance Test since 2002. Performance test records from 2002 to 2006 (n=518) were analyzed to determine if any production loss or benefit was associated with scrapie resistance in Rambouillet rams.Performance of rams with scrapie-resistant genotypes was equal to or better than scrapie-susceptible rams. Based on test performance as an acceptable indicator of sire superiority, selection for rams with scrapie-resistant genotypes should not negatively impact flock performance.
Source: Research in Veterinary Science, October 2008
