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首页> 外文期刊>The Bovine Practitioner >Effect of tilmicosin alone or in combination with Mannheimia haemolytica toxoid administered at initial feedlot processing on morbidity and mortality of high-risk calves
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Effect of tilmicosin alone or in combination with Mannheimia haemolytica toxoid administered at initial feedlot processing on morbidity and mortality of high-risk calves

机译：在育肥场初期单独使用替米考星或与溶血曼海姆菌类毒素合用对高危犊牛的发病率和死亡率的影响

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摘要

A total of 3,996 high-risk steer calves were used to compare effects of metaphylactic treatment with tilmicosin (TIL) alone or in combination with an adjuvanted Mannheimia haemolytica toxoid (MHT) at feedyard arrival. on health parameters and economic return in a commercial feedlot setting. Steers receiving TIL-MHT at processing had 17% fewer first time treatments for BRD (P=0.0002) than calves in the TIL group, and a 19% lower relapse rate (P=0.003). TIL-MHT calves had 22% less mortality (P=0.03) than calves in the TIL group. Calves receiving TIL-MHT had $1.37 (P<0.0001) and $13.14/head (P=0.03) lower therapy and mortality costs, respectively, than calves in the TIL group. In total, combined processing, therapy, railer (culls) and mortality costs for TIL-MHT calves were $14.77 lower (P=0.01) than TIL group calves.
机译：共有3,996只高风险牛犊用于比较饲喂场到来时单独使用替米考星（TIL）或与佐剂性溶血曼海姆菌类毒素（MHT）联合进行的预防性治疗效果。在商业饲养场中的健康参数和经济回报。在处理过程中接受TIL-MHT的公牛的初次BRD治疗比TIL组的犊牛少17％（P = 0.0002），复发率低19％（P = 0.003）。与TIL组相比，TIL-MHT犊牛的死亡率降低了22％（P = 0.03）。与TIL组相比，接受TIL-MHT的犊牛的治疗和死亡率成本分别低1.37美元（P <0.0001）和每头13.14美元（P = 0.03）。总的来说，与TIL组犊牛相比，TIL-MHT犊牛的综合处理，治疗，围栏（剔除）和死亡率成本降低了14.77美元（P = 0.01）。

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