1Research Progress of Genetic Variation and Evolution of Porcine Circovirus Type 2Zou Weibin, Qi Dongmei4-72Effect of astragalus polysaccharide on the disease resistance of chickenKuang Zhixiang, Wang Lizhi, Wu Boliang, Deng Xuelong, Chen Zhifeng, Huang Dechun, Zhang Qiusheng, Li Ruiqing8-113Present Situation of Dead Animal Carcass Disposal and Innocent Disposal TechnologyXu Mingming, Qu Xiangyong, Liu Yaowen, Kang Kelang14-174Immune Procedure Research of H7N9 SubtypeAvian Influenza vaccineZhang Jipei, Zhang Yishan, Niu Sen, Qi Wenbao, Chen Jidang, Liao Ming, Chen Jianhong21-275SNPDetection in BCO2 between Yellow and White Skin ChickenGan Shiyi, Wang Yan, Luo Chenlong, Shu Dingming32-356Effect of herbal additives on laying performance in layers under heat stressLi Zhihua36-377The source of the TNF alpha gene cloning and enzyme identification in the rat macrophage RAW264.7Zhao Yilong, Huang Jin-feng, Zhao Jin-xiang, Jiao JiFeng42-44