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1、畜牧與獸醫(yī)2013年第45卷第3期·9·日糧大豆磷脂對奶牛生產(chǎn)性能和血液生化指標(biāo)的影響侯炳剛1,2,高艷霞,李秋風(fēng),,戴晶晶,曹玉鳳。,李建國(1.河北農(nóng)業(yè)大學(xué)動物科技學(xué)院,河北保定071001;2.河北省廊坊市農(nóng)業(yè)局,河北廊坊065000;3.河北省牛羊胚胎工程技術(shù)研究中心,河北保定071001;4.河北農(nóng)業(yè)大學(xué)養(yǎng)??茖W(xué)研究所,河北保定071001)摘要:為研究日糧大豆磷脂水平對泌乳早期奶牛生產(chǎn)性能、消化代謝和血液生化指標(biāo)的影響,本試驗選取8頭初產(chǎn)泌乳早期中國荷斯坦奶牛,隨機分成4組,每組2頭,采用4x4重復(fù)拉丁方試驗設(shè)計進行研究。
2、4種日糧處理中大豆磷脂的添加量分別為日糧干物質(zhì)基礎(chǔ)的0,1%,2%和3%。結(jié)果顯示:大豆磷脂對奶牛干物質(zhì)采食量無顯著影響(P>0.05),但提高了飼料轉(zhuǎn)化率,尤其是2%添加組飼料轉(zhuǎn)化率顯著提高(尸<0.05);與對照組相比,2%大豆磷脂組奶牛的產(chǎn)奶量、4%標(biāo)準(zhǔn)乳、日產(chǎn)乳脂量和乳蛋白量顯著提高(P<0.05);各組間乳成分和乳體細胞數(shù)無顯著差異(P>0.05);3%大豆磷脂水平顯著降低了酸性洗滌纖維的表觀消化率(PO.
3、05)。結(jié)果表明:日糧大豆磷脂能夠提高奶牛產(chǎn)奶量,提高奶牛的健康狀況和免疫機能,經(jīng)濟效益顯著。在奶牛日糧中最佳添加量為2%(干物質(zhì)基礎(chǔ))。關(guān)鍵詞:奶牛;大豆磷脂;生產(chǎn)性能;血液生化指標(biāo)中圖分類號:$823文獻標(biāo)志碼:A文章編號:0529—5130(2013)03-0009—05EfectsofdietarysoybeanphosphatidesonperformanceandbloodbiochemicalparametersinlactatingCOWSHOUBing.gang,,GA0Yan.xia,,,LIQiu.feng',,
4、DAIJing-jing,CAOYu.feng’。,,LIJian—guo,’(1.DepartmentofAnimalScienceandTechnology,HebeiAgriculturalUniversity,Baoding071001,China;2.LangfangAgricultureBureau,Lang~ng065000,China;3.ResearchCenterofEmbryoEngineeringTechnologyinCattleandSheepofHebei,Baoding071001,China;4.In
5、stituteofCattleScience,HebeiAgriculturalUniversity,Baoding071001,China)Abstract:Theexperimentwasconductedtostudytheeffectofdietarysoybeanphosphatidesontheperformance,metabolicparameters,bloodbiochemicalparametersandtheoptimaldoseofsoybeanphosphatideofdairyCOWSduringearl
6、ylactatation.EightprimiparoushealthlyHolsteinCOWSwereselectedinareplicated4x4Latinsquaredesign,andassignedrandomlyinto4groupseachwith2replicates.Thetreat—mentswerethedietswith0%,1%,2%or3%soybeanphosphatide(DMbasis),respectively.Theresultsshowedthatdietarysoybeanphosphat
7、ideleveldidnotaffectdrymatterintake(DMI)(P>0.05),butincreasedthefeedeficiency,significantlyinthegroupof2%soy·beanphosphatides(P<0.05).Comparedwiththecontrolgroup,themilkyield,4%FCM,dailymilkfatyieldanddailymilkproteinyieldinthegroupof2%soybeanphosphatideswerealsosignifi
8、cantlyincreased(PO.05).Dietswit