Immunological changes of chicken infected with marek’s disease virus
Liu Zhonggui;Li Qingzhang;Gao Rong;Liu Yun;Zheng Shimin;Yang Liping

..............page:33-41

The status and prospects of in situ grain harvesting technology and its machine system
Jiang Yiyuan;Xu Jiamei;Du Chenghai

..............page:68-75

roles of trifluoperazine and verapamil in the oocyte maturation and cumulus expansion of bovine cumulus oocyte complexes
Sun Qingyuan;Feng Huailiang;Yang Qingzhang;Liu Guoyi and Qin Pengchun

..............page:59-67

tudies on Annual Wild Soybeans
Zhang Guodong

..............page:9-19

Broadening soybean genetic basis in the northeast of China
Wang Jinling

..............page:1-8

character of viral clones in serial passageof a nuclear polyhedrosis virus in vitro
Li Guoxun;Song Jie;Zhao Kuijun and Zhang Likun

..............page:26-32

studies on some characteristics ofnitrate reductase from sugar beet betavulgarisl leaves
Li Wenhua;Yan Gulping;Ma Fengming;Gao Jiguo

..............page:20-25

the ground cherry cerasus fruticosa pall a new kind of edible cherryfor cold and dry regions of china
Ding Xiaodong;Sui Wei;Han Fang

..............page:76-78

efficacy of oral nicotinic acid and choline in the treatment and preventionoffattyliverindairycow
Tian Wenru;Zheng Changle;Li Shoujun;Zhou Jnanping;Yang Hongjiang Wang Tao Hu Qingde;Bai Yinmin;Ma Chengchang Yang Dianjun (Dairy Farm of Sandao;

..............page:42-49

Studies on the in vitro fertilizaion in cattle
Yang Qinzhang;Xu Xiao Ji;Liu Guoyi;Sun Qingyuan;Han Yibing;Xu Libin;Xia Ping;Qian Richeng;Song Xuexiong and Qin Pengchun. Ye Xinghua(Dcpartment of Animal Medicine;North

..............page:50-58