Date of this Version
In Proceedings of the 9th World Congress on Genetics Applied to Livestock Production, Leipzig, Germany, August 1-6, 2010; http://www.kongressband.de/wcgalp2010/assets/html/0909.htm
Low levels of connectedness can create problems in uncoupling genetic and environmental influences on phenotypes. This can result in bias in prediction error variance and covariance, decreasing the accuracy of comparison of EBV across herds (Smith and Banos, 1991; Kennedy and Trus, 1993). The main objective of this study was to compare connectedness statistics published in the literature and determine which measure is most practical or suitable for estimating the risk associated with EBV comparisons in an across-herd analysis and to determine changes in connectedness in the U.S. Duroc population over time.