CAJ | 학술논문

本试验旨在通过利用蒸汽压片玉米替代精补料中的部分玉米粉来研究其对泌乳奶牛生产性能以及养殖利润变化的影响。试验结果显示，用蒸汽压片玉米替代精料中的部分玉米粉提高了奶牛的产奶量。高、中产奶牛组中试验组产奶量较对照组分别提高了3.04kg/(头·d)（P<0.05）、1.46kg(头·d)（P>0.05）；试验组乳蛋白率有升高趋势，乳脂率有下降趋势，与对照组相比差异均不显著（P>0.05）。试验结果说明，用蒸汽压片玉米替代部分玉米粉能够提高奶牛生产性能，尤其在高产奶牛上的效果更明显，并且能够降低饲养成本、增加利润，提高养殖户的收入。
본시험지재통과이용증기압편옥미체대정보료중적부분옥미분래연구기대비유내우생산성능이급양식리윤변화적영향。시험결과현시，용증기압편옥미체대정료중적부분옥미분제고료내우적산내량。고、중산내우조중시험조산내량교대조조분별제고료3.04kg/(두·d)（P<0.05）、1.46kg(두·d)（P>0.05）；시험조유단백솔유승고추세，유지솔유하강추세，여대조조상비차이균불현저（P>0.05）。시험결과설명，용증기압편옥미체대부분옥미분능구제고내우생산성능，우기재고산내우상적효과경명현，병차능구강저사양성본、증가리윤，제고양식호적수입。
Inthisstudy,partofcornlfourwasreplacedbysteam-lfakedcorninconcentratesupplementdairycattlefeedtoresearchitsimpactontheproductionperformanceoflactatingdairyandchangesinfarmingproifts.Theresultsshowedthatmilkproductionwasimprovedbyreplacingpartofcornlfourintheconcentratesupplementdairy cattle feed, in which the milk yield of high productive dairy cow was improved 3.04kg (P<0.05) than the control group, and medium productive dairy cows was improved 1.46kg (P<0.05) than the control group.The protein content in test groups was improved and the milk fat percentage was decreased but the differences were not signiifcantly(P>0.05).Thus,weconcludedthattheproductionperformanceofdairycowswasimprovedbyreplacingpartofcornlfourwithsteam-lfakedcorn,inparticular,theeffectwasmoreobviousonthehigh-yieldingdairycows.Italsocanreducefeedingcostsandincreaseproiftstoimprovetheincomeoffarmers.