The overall objective of this project was to develop a genotyped, phenotyped population to permit... more The overall objective of this project was to develop a genotyped, phenotyped population to permit the assessment of different DNA-enabled approaches for predicting the genetic merit of Angus sires on commercial beef ranches. Approximately 5,400 progeny conceived in naturalservice, multiple sire breeding pastures on 3 commercial cow-calf ranches in Northern California from 2009-2011 were assigned to a single herd bull using SNP data. The number of calves born per sire per calf drop varied greatly, ranging from 0 in ~ 7% of bull seasons to 64. The total adjusted 205d weight per bull per calf drop was almost totally explained by prolificacy (R=0.98), and showed little correlation (R=0.09) with average calf weaning weight per sire. Over 4,000 offspring were followed through the feedlot, and processing plant to obtain carcass data. Progeny data from the bulls’ first calf crop were used to calculate commercial ranch genetic (rEBV) evaluations for the bulls. These rEBVs were then compared ...
Transgenic mice expressing the omega-3 fatty acid desaturase (Fat-1) gene from Caenorhabditis ele... more Transgenic mice expressing the omega-3 fatty acid desaturase (Fat-1) gene from Caenorhabditis elegans under the control of the goat beta-casein promoter produce milk with elevated levels of omega-3 polyunsaturated fatty acids (PUFA). Additionally, Fat-1 transgenic mice display reproductive defects. When bred to wild-type (WT) males, Fat-1 females produce litters with an average size of 2.7 pups/litter, whereas WT females produce
The overall objective of this project was to develop a genotyped, phenotyped population to permit... more The overall objective of this project was to develop a genotyped, phenotyped population to permit the assessment of different DNA-enabled approaches for predicting the genetic merit of Angus sires on commercial beef ranches. Approximately 5,400 progeny conceived in naturalservice, multiple sire breeding pastures on 3 commercial cow-calf ranches in Northern California from 2009-2011 were assigned to a single herd bull using SNP data. The number of calves born per sire per calf drop varied greatly, ranging from 0 in ~ 7% of bull seasons to 64. The total adjusted 205d weight per bull per calf drop was almost totally explained by prolificacy (R=0.98), and showed little correlation (R=0.09) with average calf weaning weight per sire. Over 4,000 offspring were followed through the feedlot, and processing plant to obtain carcass data. Progeny data from the bulls’ first calf crop were used to calculate commercial ranch genetic (rEBV) evaluations for the bulls. These rEBVs were then compared ...
Transgenic mice expressing the omega-3 fatty acid desaturase (Fat-1) gene from Caenorhabditis ele... more Transgenic mice expressing the omega-3 fatty acid desaturase (Fat-1) gene from Caenorhabditis elegans under the control of the goat beta-casein promoter produce milk with elevated levels of omega-3 polyunsaturated fatty acids (PUFA). Additionally, Fat-1 transgenic mice display reproductive defects. When bred to wild-type (WT) males, Fat-1 females produce litters with an average size of 2.7 pups/litter, whereas WT females produce
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Papers by A. Van Eenennaam