Potter E L, Wray M I, Muller R D, Grueter H P, McAskill J, Young D C
J Anim Sci. 1985 Nov;61(5):1058-65. doi: 10.2527/jas1985.6151058x.
Fourteen trials were conducted to evaluate the effects of feeding monensin at 33 ppm alone, tylosin at 11 ppm alone and the two feed additives in combination on the average daily gain, average daily feed intake, feed:gain ratio and the incidence of liver abscesses in feedlot cattle. Monensin reduced feed intake and improved feed efficiency (P less than .05), and had no effect on average daily gain. Tylosin improved average daily gain (P less than .05) and had no effect on daily feed intake. The effect of tylosin on feed efficiency approached significance. The interaction of monensin and tylosin was nonsignificant for daily gain, daily feed intake and feed:gain ratio. Monensin had no effect on liver abscess incidence, while tylosin reduced abscess incidence from 27 to 9%.
进行了14项试验，以评估单独饲喂33 ppm莫能菌素、单独饲喂11 ppm泰乐菌素以及两种饲料添加剂组合对育肥牛平均日增重、平均日采食量、料重比和肝脓肿发病率的影响。莫能菌素降低了采食量并提高了饲料效率（P小于0.05），对平均日增重没有影响。泰乐菌素提高了平均日增重（P小于0.05），对日采食量没有影响。泰乐菌素对饲料效率的影响接近显著水平。莫能菌素和泰乐菌素在日增重、日采食量和料重比方面的相互作用不显著。莫能菌素对肝脓肿发病率没有影响，而泰乐菌素将脓肿发病率从27%降至9%。
