Evaluating the timing of bovine respiratory disease morbidity and mortality in feedlot cattle by first treatment, fatal disease onset, and days from first treatment to death
American Association of Bovine Practitioners Conference Proceedings(2023)
摘要
Little research has evaluated risk factors influencing the timing of bovine respiratory disease (BRD); the main focus of previous BRD research has been on environmental and demographic factors influencing disease frequency. The study objective was to descriptively evaluate typical BRD temporal patterns for cattle in U.S. Great Plains feedyard systems.
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关键词
bovine respiratory disease morbidity,feedlot cattle,fatal disease onset,mortality
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