EFFECTS OF THE TRADITIONAL CHINESE MEDICINE ADDITIVE ON THE GOAT MILK PERFORMANCE

Wang Qiufang, Ouyang Wuqing, Yan Shouchang, Wang Hongqiao, Zhang Shirui, Zhao Youqin, Li Chuanghong (The Northwestern Agricultural University)  

Fifteen healthy milking goats (at the 50-80 days of lactating) were divided into two groups of 8 (treatment) and 7 (control). The ability of traditional Chinese medicine additive consisted of the Vadix astragali, Radix angelicae sinensis, Ligusticum wallichii Franch, Vaccaria pyramidata Midic, etc. in increasing milk was examined, and its active mechanism was studied. The additive was mixed with basal diet and animals were feeded stagely. Before and after the supplementation of the additive, the concentration of lactose, fat and protein in milk were determined using infrared spectroscopic assay, and concentration of cAMP and cGMP-by radio-immunoassay. The Et and Ea rosette tests were carried out with peripheral blood. The development of recessive mastitis in goats were examined and their milk yield was accurately recorded. The results showed that the milk yield increasing rate in the treatmant group was gone up, during the supplement period, to 10.38% which was significantly higher than that in control (P0.01), and on average each goat produced 0.38 kg/day more than controls; milk composition was not significantly (P0.05) affected by the supplementation; the milk cAMP and cGMP increments were correlated with their milk increments (P0.01). The Et and Ea rosette rates in the treatment group were significantly higher than these in control (P0.01). The positive area of recessive mastitis in the treatment group was decreased markedly. Thus it is possiblely concluded that the feed additive enhanced goat milk yield and elevated cytoimmunity level and disease-resistance through affecting body cAMP and cGMP levels.

【Key Words】： Traditional Chinese medicine additive cAMP cGMP Et rosette Ea rosette Recessive mastitis
【Fund】： 国家自然科学基金资助项目

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