Era – Improving the Accuracy of Selection Mark Z. Johnson, Oklahoma State University Extension Beef Cattle Breeding Specialist — This week’s article is intended for registered, seedstock breeders in the purebred sector of cow-calf production. As we approach the time of year that spring calving operations will be weaning, selection decisions will be made regarding how many heifers should be developed as replacements, for marketing or culled. Likewise, which bulls should be developed as potential herd sires to use or sell. These decisions impact marketing success, how we will utilize feed resources and the accuracy of these selection decisions dramatically…

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