不同品质粗饲料组合对体外发酵参数、夏季奶牛生产性能及血液生化指标的影响.docx

不同品质粗饲料组合对体外发酵参数、夏季奶牛生产性能及血液生化指标的影响
摘要
本研究旨在探讨不同品质粗饲料组合对体外发酵参数、夏季奶牛生产性能及血液生化指标的影响。实验结果表明，高质量粗饲料组合有助于提高体外发酵参数，包括产气量、pH值和酸性产物含量。对夏季奶牛的生产性能也有显著的影响，其中高质量粗饲料组合对奶牛的日产奶量、乳脂和乳糖含量有显著的提高。此外，高质量粗饲料组合对奶牛的血清总蛋白含量、血清白蛋白含量、总胆固醇含量和肝酶活性有显著影响。本研究结果提示，高质量粗饲料组合对奶牛的生产性能和血液生化指标有积极影响，有助于提高奶牛的生产效益和健康水平。
关键词：不同品质粗饲料组合、体外发酵参数、夏季奶牛、生产性能、血液生化指标
Abstract
Thisstudyaimedtoinvestigatetheeffectsofdifferentcombinationsofroughageswithdifferentqualitiesoninvitrofermentationparameters,summerdairycowproductionperformance,andbloodbiochemicalparameters.Theresultsshowedthathigh-qualityroughagecombinationswerebeneficialforimprovinginvitrofermentationparameters,includinggasproduction,pHvalue,andacidproduction.Theyalsohadasignificanteffectonsummerdairycowproductionperformance,withhigh-qualityroughagecombinationsexhibitingsignificantimprovementindailymilkproduction,milkfatandlactosecontent.Inaddition,high-qualityroughagecombinationshadsignificanteffectsonserumtotalprotein,serumalbumin,totalcholesterol,andliverenzymeactivityindairycows.Theresultsofthisstudyindicatethathigh-qualityroughagecombinationshaveapositiveimpactondairycowproductionperformanceandbloodbiochemicalparameters,whichhelpsimprovedairycowproductivityandhealth.
Keywords:Differentcombinationsofroughageswithdifferentqualities,invitrofermentationparameters,summerdairycow,productionperformance,bloodbiochemicalparameters
1.Introduction
Roughagesareacriticalpartofthedietfordairycows,andtheirqualitycansignificantlyaffectthecow'shealthandproductivity.Inrecentyears,therehasbeenanincreasinginterestinoptimizingroughagecombinationstoimprovedairycowproductionperformanceandhealth.
Inadditiontotheirimpactondairycowperformance,roughagequalitycanalsoinfluenceinvitrofermentationparameters.Invitrofermentationstudieshavebeenwidelyusedtoevaluaterumenfermentationcharacteristicsandidentifydietarycomponentsthatcanenhancebacterialgrowthandfermentationefficiency.Theresultsofinvitrofermentationstudiescanprovidevaluableinsightintorumenmicrobialactivityandnutrientutilization,