Using Ovis aries as outgroup taxa,the phylogeny about the representative species of Bovinae(Poephagus grunniens,Poephagus mutus,Bos taurus,Bos indicus, Bison bison,Bison bonasus,Bubalus bubalis)was analyzed.

Isolation of EST for CAPN1 of Bos grunniens with nested and touch-down PCR;

Cloning,Sequencing Research on Partial Fragment of Obese Gene of Bos grunniens;

Cloning and Sequencing of Partial Fragment of TNF-α Gene of Bos grunniens;

Research on Manufacture Technology of Urum with Yak;

Isolation and Identification of Lactobacillus in Yak Yoghourt in Part pasture of Qinghai Provincl;

Analysis of fatty acid composition of homemade yak yogurt;

Studies on Behavior Observation and its Application of Yaks;

Studies on Histological Characteristics of Follicle and Corpus Luteum in Yaks during Pregnancy;

The Studies on Histological Characteristics of Follicular Systems and Corpus Luteum in Yaks During the Estrous Cycle;

Study on Chemical and Microbiological Compositions and Identification of Lactic Acid Bacteria from Home-made Kurut in Qinghai;

To develop a simple, accurate, sensitive method for determination of vitamin C in fermented milk by high performance liquid chromatography (HPLC), in the meanwhile, determined the vitamin C in traditionally fermented milk (kurut, traditionally fermented goat milk, koumiss)of Qinghai province.

Changes of dissociative calcium and amino acid nitrogen in smashed yak bone paste treated by fermentation or enzymolysis;