全株构树青贮在务川黑牛日粮中饲用价值评价

陈光吉,熊先勤,何润霞,田雄,申应龙,邹晓敏,杨洪,尚以顺,赵明坤,李小冬,李世歌,张蓉,舒健虹

Evaluation of Feeding Value for Whole Broussonetia papyrifera Silage in Diet of Wuchuan Black Beef Cattle

CHEN GuangJi,XIONG XianQin,HE RunXia,TIAN Xiong,SHEN YingLong,ZOU XiaoMin,YANG Hong,SHANG YiShun,ZHAO MingKun,LI XiaoDong,LI ShiGe,ZHANG Rong,SHU JianHong

表5 各处理组瘤胃发酵参数和微生物蛋白含量变化

Table 5 Changes of rumen fermentation parameters and microbial protein concentration of each treatment

项目 Item 处理组Treatment 标准误 SEM P A B C D E pH值 pH value 6.24 6.28 6.26 6.26 6.21 0.02 0.524 挥发性脂肪酸VFAs (mmol·L-1) 乙酸 Acetate 27.04a 20.76b 13.36c 18.08b 12.82c 0.48 0.015 丙酸 Propionate 5.94a 5.79a 3.21c 4.82b 2.95c 0.61 0.039 异丁酸 Isobutyric acid 1.12a 1.09a 0.74c 0.97a 0.74c 0.08 0.005 丁酸 Butyrate 3.41a 2.52b 1.73c 2.40b 0.99d 0.36 0.017 异戊酸 Isovaleric acid 1.65 1.61 1.10 1.47 1.22 0.12 0.164 戊酸 Valeric acid 0.39a 0.30ab 0.14c 0.24b 0.14c 0.04 0.026 乙酸/丙酸值 Acetate/Propionat ratio 4.50ab 3.64c 4.22b 3.86c 4.83a 0.20 0.013 总挥发性脂肪酸 TVFA 40.21a 32.75b 20.91d 28.36c 19.17d 0.61 <0.001 微生物蛋白MCP mg·mL-1 0.15e 0.25d 0.51c 0.79a 0.61b 0.06 <0.001