Publications by authors named "Joseph Danny Driver"
This study evaluated the association between the proportion of Brahman genetics and productivity of Brahman-Angus cows at weaning using a 31-yr dataset containing 6,312 cows and 5,405 pregnancies. Cows were contemporaneously reared and enrolled in yearly breeding seasons under subtropical conditions of North-Central Florida. They were evenly distributed in six-breed groups (G) according to the proportion of Brahman genetics: G0% to 19%, G21% to 34%, G38% (Brangus), G41% to 59%, G63% to 78%, and G81% to 100%.
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- * Cows with lower B. indicus genetics (0%-19%) had a higher pregnancy rate per artificial insemination (AI) compared to those with higher genetics (81%-100%), indicating that B. indicus influence negatively affects key reproductive metrics.
- * While higher B. indicus genetics reduced pregnancy rates, it did not significantly lower the overall proportion of pregnant cows by the end of the breeding season, but it did lengthen the time taken to achieve pregnancy, particularly in cows with
Calf diarrhea is one of the most concerning challenges facing both the dairy and beef cattle industry. Maintaining healthy gut microbiota is essential for preventing gastrointestinal disorders. Here, we observed significantly less bacterial richness in the abnormal feces with watery or hemorrhagic morphology compared to the normal solid feces.
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