数字农科院2.0

Dietary fat supplement affected energy and nitrogen metabolism efficiency and shifted rumen fermentation toward glucogenic propionate production via enrichment of Succiniclasticum in male twin lambs

文献类型： 外文期刊

作者： Wenjuan Li;Tao Ma;Naifeng Zhang;Kaidong Deng;Qiyu Diao

作者机构：

关键词： fat;microbiota;rumen fermentation;twin lambs

期刊名称： Journal of Integrative Agriculture

ISSN： 2095-3119

年卷期： 2025 年 24 卷 4 期

页码：

收录情况： SCIE（2025版） ; ; CSCD（2025-2026年度） ; ; 科技核心（2024版） ; ; 农林核心（2024版）

摘要： The aim of this study was to investigate the effects of dietary fat on energy and nitrogen (N) metabolism efficiency, rumen fermentation, and microbiota in twin suckling lambs. Thirty pairs of twin male lambs were randomly divided into two groups with one group receiving a high-fat diet (HF) and the other a normal-fat diet (NF). Two diets (milk replacer and starter) of equal protein and different fat levels. The metabolism test was conducted when the lambs were 50–60 days old, and nine pairs of twin lambs were randomly selected for slaughter to collect rumen fluid at 60 days old. The result showed that fat addition increased the final body weight (BW), ruminal ammonia nitrogen (NH3-N) content, proportion of propionic acid, and estimated methane production (CH4e) (P<0.05). The high fat diet tended to improve digestive energy (DE), metabolism energy (ME), DE/ME, utilisation of N (0.05

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