CAJ | 학술논문

TMR粒度对奶牛健康养殖起着至关重要的作用，本研究选取泌乳天数、胎次、产奶量相近的200头奶牛进行配对试验，饲喂不同粒度的相同日粮，采集粪样、记录干物质采食量、收集DHI数据进行配对T检验分析。结果表明，TMR粒度较大的试验组奶牛日粮消化率较高，产奶量及乳脂率有升高的趋势，但差异不显著。
TMR립도대내우건강양식기착지관중요적작용，본연구선취비유천수、태차、산내량상근적200두내우진행배대시험，사위불동립도적상동일량，채집분양、기록간물질채식량、수집DHI수거진행배대T검험분석。결과표명，TMR립도교대적시험조내우일량소화솔교고，산내량급유지솔유승고적추세，단차이불현저。
Particles size of TMR ration is important to healthy breed of dairy cow. In this paper, 200 dairy cows with similar days of milking, milk production and parity were used in the paired experiment design. In the period of experiment, the same ration with different TMR particles were feed, and the milk production, milk fat percentage, digestion rate of ration and dry matter intake（DMI） were analyzed. The results showed that TMR ration with big particle （treatment group） had higher digestion rate when compared with control group. In treatment group, although milk fat percentage and milk production were not significant in statistics, they had increasing trend compared to controls.