中草药添加剂对山羊泌乳性能的影响

本添加剂由芪、当归、川芎、王不留行等中草药组成。为观察其增乳作用，探讨其作用机理，我们对１５只泌乳５０天左右的奶山羊（试验组８只，对照组７只）进行了。将添加剂拦入精料，阶段性饲喂。在添加前后，分别测定了乳脂、乳糖、乳蛋白及乳中环核苷酸（ｃＧＭＰ和ｃＡＭＰ）的含量；进行了外周血液Ｅ玫瑰花环试验，包括总Ｅ（Ｅｔ）花环和活性Ｅ（Ｅａ）花环试验；检查了隐性乳房炎发病情况；记录了产乳量。结果发现，本添加剂增

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

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 (P<0.01), and on average each goat produced 0.38 kg/day more than controls; milk composition was not significantly (P>0.05) affected by the supplementation; the milk cAMP and cGMP increments were correlated with their milk increments (P<0.01). The Et and Ea rosette rates in the treatment group were significantly higher than these in control (P<0.01). 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.