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Full-Text Articles in Life Sciences

Genome-Wide Linkage Analysis To Identify Chromosomal Regions Affecting Phenotypic Traits In The Chicken. I. Growth And Average Daily Gain, H. Zhou, Nader Deeb, C. M. Evock-Clover, C. M. Ashwell, Susan J. Lamont Jan 2006

Genome-Wide Linkage Analysis To Identify Chromosomal Regions Affecting Phenotypic Traits In The Chicken. I. Growth And Average Daily Gain, H. Zhou, Nader Deeb, C. M. Evock-Clover, C. M. Ashwell, Susan J. Lamont

Animal Science Publications

Two informative chicken F2 populations based on crosses between a broiler breeder male line and dams from genetically distinct, highly inbred (>99%) chicken lines, the Leghorn G-B2 and Fayoumi M15.2, have been used for genome-wide linkage and QTL analysis. Phenotypic data on 12 body composition traits (breast muscle weight, breast muscle weight percentage, abdominal fat weight, abdominal fat weight percentage, heart weight, heart weight percentage, liver weight, liver weight percentage, spleen weight, spleen weight percentage, and drumstick weight, and drumstick weight percentage) were collected. Birds were genotyped for 269 microsatellite markers across the genome. The QTL Express program ...


An Investigation Of Susceptibility To Porcine Reproductive And Respiratory Syndrome Virus Between Two Genetically Diverse Commercial Lines Of Pigs, Amy L. Vincent, Brad J. Thacker, Patrick G. Halbur, Max F. Rothschild, Eileen L. Thacker Jan 2006

An Investigation Of Susceptibility To Porcine Reproductive And Respiratory Syndrome Virus Between Two Genetically Diverse Commercial Lines Of Pigs, Amy L. Vincent, Brad J. Thacker, Patrick G. Halbur, Max F. Rothschild, Eileen L. Thacker

Animal Science Publications

The objective of this study was to determine whether host genetics play a role in susceptibility to the respiratory disease in growing pigs caused by the porcine reproductive and respiratory syndrome virus (PRRSV). Based on a previous study, 2 genetically diverse commercial lines of pigs that also were divergent in the susceptibility of monocyte-derived macrophages to PRRSV infection in vitro were selected for an in vivo challenge study. Based on the average percentage of infected macrophages for each line, a line derived from the Large White breed was characterized as fluorescence-activated cell sortinghi (FACShi), and a line derived ...