羊奶粉是国内市场主要的羊奶制品,但其功能性和附加值的探索尚缺乏充足的研究证据。为评价羊奶粉增强身体活力的作用,研究选用160 只健康的5~6 周龄雄性BALB/c小鼠,随机分为四组：空白对照组、阳性对照组、低剂量和高剂量羊奶粉组,空白对照组每天灌胃生理盐水,阳性对照组灌胃西洋参含片（剂量为625.0 mg/kg）,低剂量羊奶粉组灌胃的羊奶粉剂量为6.25 g/kg,高剂量羊奶粉组灌胃的羊奶粉剂量为12.5 g/kg。持续灌胃30 天后,记录小鼠负重游泳时间,检测小鼠血乳酸的含量、血清尿素浓度和肝糖原水平。结果表明,羊奶粉干预组小鼠负重游泳时间显著长于空白对照组小鼠（p<0.05）,且羊奶粉干预组小鼠血清尿素浓度较空白对照组也有显著降低（p<0.05）,肝糖原含量显著升高,血乳酸曲线下面积无明显差异。研究结果表明,羊奶粉具有增强身体活力的作用。
Goat milk powder is the main goat milk product in China. However,the explorations of its function and added value are lack of evidences. In order to evaluate the effects of goat milk powder on the enhancing physical vitality,160 male BALB/c mice aged 5 to 6 weeks were randomly divided into four groups,which were control,positive control,low dose and high dose of goat milk powder. The control group of mice were administered intragastrically with 200 μL of normal saline,and the positive control of mice were administered intragastrically with 625.0 mg/kg of American ginseng tablet,and low dose and high dose of goat milk powder groups were respectively intragastrically with 6.25 g/kg and 12.5 g/kg of goat milk powder per day. After 30-day gavage,the swimming times under burden of mice were measured,and the concentrations of lactic acid in blood,serum urea and the hepatic glycogen were detected. The results suggested that the swimming under burden time of goat milk powder groups was significantly longer than that in the control group（p< 0.05）.Compared to control group,the level of serum urea of goat milk powder groups was significantly reduced,and the hepatic glycogen content was significantly increased（p< 0.05）. The areas under curve of blood lactic acid had no significant difference in these groups. The results of this study suggested that goat milk powder could enhance physical vitality.
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