数字农科院2.0

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

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

作者机构：

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

期刊名称： Veterinary Sciences

ISSN： 2306-7381

年卷期： 2025 年 12 卷 1 期

页码：

收录情况： SCIE（2025版）

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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