Gross W B
Am J Vet Res. 1984 May;45(5):963-6.
After low antibody-response line chickens were challenge exposed with Escherichia coli, 10% of the controls, 35% of those fed furaltadone , 37% of those fed deoxycorticosterone (DOC), and 92% of those fed furaltadone and DOC gained weight. Concentrations of DOC above or below the optimal concentration (40 mg/kg of feed) were less effective, eg, when 100 mg of DOC/kg of feed was fed with furaltadone , 45% of low antibody-response line birds gained weight as compared with 85% of the birds when furaltadone was fed alone. However, the optimal amount of DOC did vary among genetic stocks and with environment. Stocks of birds also differed in their response to the concentration of furaltadone and DOC. Socialization increased the effectiveness of furaltadone .
低抗体反应品系的鸡只经大肠杆菌攻击暴露后，对照组中有10%的鸡只增重，饲喂呋喃他酮的鸡只有35%增重，饲喂脱氧皮质酮（DOC）的鸡只有37%增重，而同时饲喂呋喃他酮和DOC的鸡只有92%增重。高于或低于最佳浓度（每千克饲料40毫克）的DOC效果较差，例如，当每千克饲料中添加100毫克DOC与呋喃他酮一起饲喂时，低抗体反应品系的鸡只有45%增重，而单独饲喂呋喃他酮时这一比例为85%。然而，DOC的最佳用量在不同遗传品系和不同环境中确实有所不同。鸡只品系对呋喃他酮和DOC浓度的反应也存在差异。群居饲养提高了呋喃他酮的效果。
