二氢吡啶对热应激奶牛产奶量以及奶牛体温、呼吸频率的影响  

Effects of 1,4-dihydropyridine on Milk Yield,Body Temperature and Respiration of Lactating Dairy Cows in Heat Stress

作　　者：张峰[1] 吴占军[1] 张新同[1] 王昆[1] 王学清[1] 马书林[1] 刘小虎[1] 

机构地区：[1]河北省农林科学院粮油作物研究所,河北省农林科学院奶牛研究中心,河北石家庄050031

出　　处：《华北农学报》2010年第B08期270-273,共4页Acta Agriculturae Boreali-Sinica

基　　金：河北省财政专项资助项目(2008055002)

摘　　要：选用24头荷斯坦奶牛,随机分为4组,全混和日粮饲喂,自由采食,分别饲喂含0,100,150,200mg/kg的二氢呲啶日粮20d,研究二氢吡啶对泌乳奶牛产奶量及体温、呼吸频率的影响。结果表明:含二氢吡啶日粮可以使奶牛产奶量提高17.5%～28.3%,延缓奶牛产奶后期产奶量下降,但差异不显著(P>0.05)。与对照组相比,含二氢吡啶日粮对奶牛的体温、呼吸影响不显著(P>0.05),但添加二氢吡啶日粮有降低奶牛呼吸频率的趋势。In order to study effects of 1,4-dihydropyridine on milk yield,temperature and respiration of lactating dairy cows,twenty-fouth lactating dairy cows were divided randmonly into four gtroups to be fed with total mixed ration and with 0,100,150,200 mg/kg 1,4-dihydropyridine for twenty days,respectively.Feed and water were provided ad libitum.Results indicated that 100,150,200 mg/kg increased milk yield of dairy cows（17.5%-28.3% kg/d） ,but there were no difference among 0,100,150,200 mg/kg diets（P〉0.05） .Body temperature and respiration were no difference（P〉0.05） when dairy cows were fed 100,150,200 mg/kg compared with 0 mg/kg 1,4-dihydropyridine diet.The respiration was declined when dairy cows fed 100,150,200 mg/kg 1,4-dihydropyridine diets.

关 键 词：二氢吡啶 奶牛 产奶量 体温 呼吸频率 

分 类 号：S823.91[农业科学—畜牧学]