In Vitro Evaluation of Ruminal Digestibility, Fermentation Characteristics, and Bacterial Diversity of Kenaf Crop at Various Cutting Heights

文献类型： 外文期刊

第一作者： Li, Mengwei

作者： Li, Mengwei;Peng, Lijuan;Yang, Chengjian;Liang, Xin;Huang, Jiaxiang;Hassan, Faiz-ul;Akhtar, Muhammad Uzair;Lin, Qian;Arshad, Muhammad Adeel

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关键词： kenaf; forage; digestibility; fermentation characteristics; methane; bacterial diversity

期刊名称：VETERINARY SCIENCES （ 影响因子：2.3； 五年影响因子：2.4 ）

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年卷期： 2025 年 12 卷 1 期

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收录情况： SCI

摘要： The current study investigated the in vitro degradability, in vitro gas production, methane (CH4) production, and ruminal bacterial community of kenaf plants cut at different heights (130, 160, 190, 220, and 250 cm). These samples were subjected to an in vitro batch culture system using buffalo rumen fluid to measure gas and CH4 production at 3, 6, 9, 12, 24, 36, 48, and 72 h of incubation. Results reveal that crude protein (CP) concentration was the highest at the 220 cm height compared with the other heights. With the increase in height, gas and CH4 production decreased. However, the CH4 production at 190 cm was higher compared with the other plant heights. Dry matter degradation was higher at 190 cm and 220 cm, while ammonia-N and microbial CP were higher at the 220 cm height compared with the other heights. However, neutral detergent fiber degradation was the highest at the 130 cm height. Total volatile fatty acids, acetic acid, acetic acid/propane ratio, and pH value did not differ among the treatments, except for propionic acid, which was higher at the 130 cm and 160 cm heights. Overall, harvesting kenaf at plant heights of up to 220 cm was better in terms of its promising nutritional quality, improved dry matter degradation, and microbial CP contents.

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