Studies about the effect of adding Zinc Bacitracin into ration on layers' heat- stressed resistance于方林1-2
Effect of Metrondazole on the immune re sponse to live infectious bursal disease vir us vaccine in chicks乔彦良, 初晓翠, 付兴伦, 盛英霞, 张妍, 杨汉春, 郭玉璞2-4
Study on the enzyme -organ chemisty of the activities of saccharometabolism enz ymes in the development of cysticercus cel lulosae and under the drugs against cys ticercus cellulosae史艳秋, 高学军4-5