A study of 100 bulls in Colorado found each additional wildfire smoke day increased sperm discard odds by 4%, with Angus breeds showing 31% higher odds per 1-μg/m3 PM2.5 increase, establishing baseline risks for cattle reproductive health. Findings aim to inform veterinarians and cattlemen on mitigation strategies.
Source: academic oup. Original: https://academic.oup.com/jas/advance-article/doi/10.1093/jas/skag110/8651340
