CAJ | 학술논문

为研究发酵玉米秸秆对泌乳期奶牛产奶量及乳成分的影响，选择30头体况良好、胎次相同、产奶量相近的泌乳期荷斯坦奶牛，随机分为3组，对照组为未处理秸秆组，试验Ⅰ组为低菌量发酵秸秆组，试验Ⅱ组为高菌量发酵秸秆组，预试期10 d，试验期60 d。结果表明，试验Ⅱ组各阶段奶牛干物质采食量较对照组分别提高10.90%、8.34%、8.97%（P＜0.05）；各试验组奶牛产奶量均显著高于对照组（P＜0.05）；41～60 d，试验Ⅱ组与对照组相比，乳蛋白率、乳脂率、乳糖率、非乳脂固体物含量均显著提高（P＜0.05），试验Ⅰ组乳脂率比对照组提高2.95%（P＜0.05）。由此可见，秸秆发酵后，品质明显改善，利用率提高，可改善奶牛生产性能。
위연구발효옥미갈간대비유기내우산내량급유성분적영향，선택30두체황량호、태차상동、산내량상근적비유기하사탄내우，수궤분위3조，대조조위미처리갈간조，시험Ⅰ조위저균량발효갈간조，시험Ⅱ조위고균량발효갈간조，예시기10 d，시험기60 d。결과표명，시험Ⅱ조각계단내우간물질채식량교대조조분별제고10.90%、8.34%、8.97%（P＜0.05）；각시험조내우산내량균현저고우대조조（P＜0.05）；41～60 d，시험Ⅱ조여대조조상비，유단백솔、유지솔、유당솔、비유지고체물함량균현저제고（P＜0.05），시험Ⅰ조유지솔비대조조제고2.95%（P＜0.05）。유차가견，갈간발효후，품질명현개선，이용솔제고，가개선내우생산성능。
The objective of this study was to evaluate the effects of fermentation of corn straw on the performance of Chinese Holstein dairy cows in lactation.A total of 30 healthy lactating dairy cows with similar age ,parity and milk yield were randomly assigned to 3 treatments.Control group (untreated corm straw),fermentation of corn straw group with low dose bacteria(treatment Ⅰ)and fermentation of corn straw group with high dose bacteria(treatment Ⅱ)were designed.The experiment lasted for 60 days,including 10 days pre-experiment.The results showed that dry matter intake of treatment Ⅱwere 10.90%,8.34%,8.97%higher than that of control group (P<0.05).The milk yield of treatment Ⅰand treatmentⅡwas significantly higher than that of control group (P < 0.05).The protein,fat,lactose rate and content of non-fat solid of treatment Ⅱ were improved,compared with control treatment at 41 ~ 60 d (P < 0.05).The fat ratio of treatment Ⅰ was 2.95% higher than that of control treatment.In conclusion,the fermentation of corn straw could improve milk quality,feed efficiency and animal production performance.