Experiments were conducted with 270 Abore Acre male broilers to study the influence of dietary chlortetracycline(CTC) on the bursal, thymus and spleen weight index and T,B cell proliferation and antibody responses of broilers.
英
美
- 270只 Abore Acre商品代肉用公雞隨機分成 3組，金霉素在飼料中添加水平分別為 0.；50和 150mg/kg，研究飼用金霉素對肉仔雞法氏囊、脾臟和胸腺等免疫器官發(fā)育、以及免疫反應的影響。
