No. 7, 2007

• 9   Research on RAPD Markers of Heat-tolerance in Holstein……………Hu Xionggui, Xiao Dingfu, et al.

  13 Associative Effects of Supplementing Ruminant Straw Diets with Alfalfa Hay……………Zhang Jikun, Liu Jianxin

  17 Research on Rumen Nitrogen Metabolism and Rumen Ferment of Growing Dariy Cows Fed with Two Typical Diets………………………………………………………………Li Changhao，Wang Jiaqi, et al.

  20 The Effect of the Cow Feed on the Flavor of Milk and the Preventive Measure………Ma Yanfen, Lu Dexun, et al.

  23 The Impact of Cattle Varieties and Nutritional Levels of Daily Food on Dung Quality……………………………………………………………………………………Qiu Meizhen, Du Lifei, et al.

  25 Progress of Bovine Early Embryo in Vitro Culture……………………………..Peng Lifan, Luo Guangbin

  28 Natural Capacity Comparison on German Holstein and Chinese Holstein…Wang Lisheng, Yin Zongjun, et al.

  31 Advances on the Relationship Between MHC Gene and Mastitis of Dairy Cow……Zhao Fubin, Li Jianbin, et al.

  35 Bacterial lsolation from Milk of cows with Mastitis in Hubei Area and the Antimic- robial Resistance Liu………………………………………………………………………………………..Zhao,Wang Jingren,et al.

  38 Differential Diagnosis and Prevention of Fluorine Acetamide Poisoning on Dairy Cow……………………………………………………………………………………Wang Yu, Li Jianyun, et al.

  40 Diagnosis and Therapy of Ketosis in Dairy Cow……………………………………Zhang Songlin, Ji Shuhui, et al.

  46 Study on Reusing Dairy Cattle Feces as Feed Resources………………………………Cheng Wending,Gao Min.

  49 Discussion about the Dairy Manure Collection and the Equipments…………Zou Xianmei, Hu Chaoyang, et al.