CAJ | 학술논문

为研究发酵玉米秸秆对泌乳期奶牛瘤胃发酵参数的影响，本试验选取3头体况相近、健康的泌乳期荷斯坦奶牛，对照组饲喂未处理秸秆，试验Ⅰ组饲喂低菌量发酵秸秆，试验Ⅱ组饲喂高菌量发酵秸秆，采用3×3拉丁方试验设计，试验分为3期，每期20 d。结果表明，饲喂发酵玉米秸秆奶牛瘤胃液pH，氨态氮（NH3-N）、挥发性脂肪酸（VFA）、乙酸浓度与对照组相比均显著提高（P＜0.05）；对瘤胃内丙酸、丁酸浓度和乙酸/丙酸无显著影响（P＞0.05）。由此可见，发酵玉米秸秆能够改善瘤胃内环境，提高瘤胃发酵功能。
위연구발효옥미갈간대비유기내우류위발효삼수적영향，본시험선취3두체황상근、건강적비유기하사탄내우，대조조사위미처리갈간，시험Ⅰ조사위저균량발효갈간，시험Ⅱ조사위고균량발효갈간，채용3×3랍정방시험설계，시험분위3기，매기20 d。결과표명，사위발효옥미갈간내우류위액pH，안태담（NH3-N）、휘발성지방산（VFA）、을산농도여대조조상비균현저제고（P＜0.05）；대류위내병산、정산농도화을산/병산무현저영향（P＞0.05）。유차가견，발효옥미갈간능구개선류위내배경，제고류위발효공능。
The objective of this study was to evaluate the effects of fermented corn straw on rumen fermentation pa-rameters in lactating dairy cows.Three healthy lactating dairy cows with similar body weight were used in a 3 ×3 Latin square design.Control group,fermented corn straw group with low dose bacteria and fermented corn straw group with high dose bacteria were designed.The trial was divided into 3 periods and each period lasted for 20 days.The results showed that compared with control group,after adding the fermented corn straw in the diet,rumen pH and concentrations of am-monia nitrogen (NH3-N),acetate,volatile fatty acid (VFA)were all increased significantly (P < 0.05).The fermented corn straw had no significant effects on propionate,butyrate and acetate to propionate rations (P>0.05).In conclusion,the fer-mented corn straw could improve rumen fermentation environment and the function of rumen fermentation.