Effects of chop lengths of ramie silage on ruminal fermentation, free amino acid content, and cellulase activity in goats

文献类型： 外文期刊

第一作者： Sun, Shengnan

作者： Sun, Shengnan;Hou, Zhenping;Zhang, Xuelei;Wu, Duanqin;Sun, Shengnan;Chen, Gongxuan;Jiang, Guitao

作者机构：

关键词： black goats; fiber degradation; forage ramie; nutritional assessment; rumen microbes

期刊名称：CZECH JOURNAL OF ANIMAL SCIENCE （ 影响因子：1.267； 五年影响因子：1.428 ）

ISSN： 1212-1819

年卷期： 2021 年 66 卷 11 期

页码：

收录情况： SCI

摘要： Twelve Liuyang black goats were selected and divided into three groups in a randomized design and they were provided one of the three treatment diets with different chop lengths of ramie silage [1 cm (RS1), 2 cm (RS2), and 3 cm (RS3)]. The length had no effect on pH or the content of acetic acid, butyric acid, and valeric acid. In contrast, NH3-N decreased (P = 0.024) and the ratio of acetate to propionate (P = 0.083) and total volatile fatty acid (TVFA) content (P = 0.087) tended to decrease, and the proportion of propionic acid tended to increase (P = 0.096) with an increase in the chop length of ramie. The increasing lengths of ramie silage decreased the content of total essential amino acids (AA) (P = 0.001), total non-essential AA (P = 0.003), and total AA (P = 0.001), and decreased the concentration of aspartic acid (P = 0.076) in the ruminal fluid. Ramie silage affected xylanase activity (P = 0.043), with greater activity in RS1 than in RS2 and RS3. The recommended chop length of ramie silage is 1 cm because of increasing TVFA, amino acid concentration, and xylanase activity in the ruminal fluid of goats.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序