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Hereford and Red Angus Heifers Recruited for Genomics Research

The University of Missouri is recruiting 2,500 Hereford heifers and 2,500 Red Angus heifers to participate in a heifer puberty and fertility genomic research project. Heifers should be registered Hereford, registered Red Angus, or commercial Hereford or Red Angus. Hereford x Red Angus crossbred heifers targeted for the Premium Red Baldy Program would also be a good fit for the research project. Producers must be willing to work with a trained veterinarian to collect the following data: ReproductiveTract Scores collected at a pre-breeding exam 30 to 45 days prior to the start of the breeding season. PelvicMeasurements (height and width) collected at the same pre-breeding exam 30 to 45 days prior to the start of the breeding season. Pregnancy Determination Using Ultrasound reporting fetal age in days. Ultrasound will need to occur no later than 90 days after the start of the breeding season. In addition, heifers must have known birth dates and have weights recorded eithe

Angus Single-Step Has Launch Date

Angus Genetics Inc will switch to single-step genomic prediction on July 7th.

Since 2010 they have been using multi-step genomic prediction. In multi-step, genomic predictions are treated as correlated traits to produce GE-EPDs. In single-step, all genomic, pedigree, and performance data is analyzed in one model. The key to calculating EPDs is measuring genetic similarity. Traditional EPDs used pedigree data to estimate genetic similarity. In single-step, genomic data more accurately measures relatedness, i.e. genetic similarity. The pedigree and genomic relationship measures are combined.

Since November, AGI has evaluated multi-step vs single-step. They have seen very similar accuracies between the two methods. But, single-step tends to have slightly higher accuracies. Further, there are several advantages to single-step. These advantages include removing the need to recalibrate and using all of the data simultaneously.

Watch for further information from Angus about the switch to single-step as July 7th approaches.

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