1Measures on maintain ram semen sterile and sanitaryXu Guihua, Liu Xingwei21-232Investigate and thinking on Sustainable and healthy development of poultry industryXie Yuankai24-263Application Ion HACCP system certification in chicken slaughtering and processingZheng Shiyi27-304Diagnosis and prevention on pseudorabiesWu Yunpu31-345Brief quarantine technology instructions of SporozoosisZhang Yawei, Wei Shu, Yan Haibin, Zhu Jiangwei35-376Prevention and control measures of animal disease in the post-disasterHu Jun, Liu Jiali, Yang Guoli, Zheng Hongling38-417Determination ofβ-receptor agonists in animal urine by Ultra Performance Liquid chromatography-tandem mass spectrometryWang Lina, Liu Kai, Du Bailin, Liu Xiao, Liu Jingxian, Liu Ying42-468Research on granulosa cells apoptosis characteristics of atresia folliculi on Liaoning cashmere goatHan Di, Guo Dan, Jiang Huaizhi, Ji Shuang, Yang Baozhong47-529The standard curve of Desfuroyl Ceftiofur and linear range of determinationSong Fujie, Liu Mingchun, Fu Te, Jiao Yang53-58