Izat A L, Colberg M, Reiber M A, Adams M H, Skinner J T, Cabel M C, Stilborn H L, Waldroup P W
Department of Animal and Poultry Science, University of Arkansas, Fayetteville 72701.
Poult Sci. 1991 Jun;70(6):1419-23. doi: 10.3382/ps.0701419.
Broilers were grown to 42 days of age on diets supplemented with salinomycin (60 mg/kg), monensin (99 mg/kg), or halofuginone (3 mg/kg) and continued on unmedicated diets to 49 days of age. There were no significant (P greater than .05) differences among anticoccidials in final body weight, feed conversion, or mortality rates. Samples of birds were processed for dressing percentage and parts yield. Both males and females fed salinomycin had significantly higher breast meat yield as a percentage of postchill weight than those fed halofuginone but not those fed monensin; differences were not significant for breast meat yield of males or females fed monensin or halofuginone. Males fed halofuginone had significantly heavier leg quarters than those fed salinomycin but not those fed monensin. Females fed salinomycin had significantly higher water uptake during chill than those fed monensin or halofuginone. Results of the present study indicate that the anticoccidial used in growing broilers may influence some carcass yield parameters.
将肉鸡饲养至42日龄，日粮中添加盐霉素（60毫克/千克）、莫能菌素（99毫克/千克）或常山酮（3毫克/千克），然后继续饲喂无药物日粮至49日龄。在最终体重、饲料转化率或死亡率方面，抗球虫药之间没有显著（P大于0.05）差异。对禽类样本进行加工以测定屠宰率和各部位产量。与饲喂常山酮的肉鸡相比，饲喂盐霉素的雌雄肉鸡的胸肉产量占冷宰后体重的百分比显著更高，但与饲喂莫能菌素的肉鸡相比则无显著差异；饲喂莫能菌素或常山酮的雌雄肉鸡的胸肉产量差异不显著。饲喂常山酮的雄性肉鸡的腿部重量显著高于饲喂盐霉素的雄性肉鸡，但与饲喂莫能菌素的雄性肉鸡相比则无显著差异。与饲喂莫能菌素或常山酮的雌性肉鸡相比，饲喂盐霉素的雌性肉鸡在冷却过程中的吸水量显著更高。本研究结果表明，生长肉鸡所用的抗球虫药可能会影响一些胴体产量参数。
