摘要
采用单因素随机分组试验设计,将15头泌乳中期荷斯坦奶牛随机分为3组,每组5头,进行为期60d的饲养试验。每组奶牛分别饲喂不同日粮:Ⅰ组(基础日粮)、Ⅱ组(基础日粮+200mg大豆黄酮/d)、Ⅲ组(基础日粮+200mg染料木素/d),试验期60d内每隔15d晨饲前空腹颈部采集血样,进行血液内分泌指标分析。结果表明,大豆黄酮和染料木素对泌乳中期奶牛血清胰岛素(INS)、甲状腺激素T3、T4含量虽有一定的增高趋势,但均没有达到显著水平(P>0.05)。血清中生长激素(GH)、催乳素(PRL)、雌二醇(E2)各组间均存在显著影响(P<0.05)。结论:大豆黄酮和染料木素具有提高奶牛GH、PRL和E2水平的作用,但对INS、T3、T4无影响。
Fifteen Holstein cows in milk mataphase were used in a completely randomized design to determine the effects of Daidzein and Genistein on incretion parameters.The cows were randomly divided into three groups,which included 200 mg Daidzein/d group,200 mg Genistein/d group and control in 60 ds.Results showed that INS,T3,T4 were not significantly different among groups(P〉0.05),but GH,PRL and E2 in Daidzein and Genistein groups were significantly improved compared to control(P〈0.05).
出处
《中国兽医学报》
CAS
CSCD
北大核心
2010年第9期1261-1264,1268,共5页
Chinese Journal of Veterinary Science
基金
黑龙江省博士后基金项目(LBH-Z08023)
中国科学院农办项目(KSCX2-YW-N-46-10)
科技部国家科技支撑计划(2008BAD96B02)