Teng Meimei, Li Yuanqiu, Qi Jiangjiao, Wu Wenda, Sun Xinchang, Gao Chengze, Zhang Xia, Mamtimin Tursunay, Wan Jiangchun
Xinjiang Key Laboratory of Grassland Resources and Ecology, College of Grassland Science, Urumqi 830052, China.
School of Food and Biological Engineering, Engineering Research Center of Bio-Process, Hefei University of Technology, Hefei 230009, China.
Animals (Basel). 2025 Mar 24;15(7):930. doi: 10.3390/ani15070930.
Grape pomace, a winemaking byproduct, is nutrient- and polyphenol-rich, but research on its use in beef cattle is limited. This study explored the impact of grape pomace-based complete pellet feed on growth, serum biochemistry, fatty acid profile, and rumen microbiota in beef cattle. Fifteen healthy Simmental cattle were randomly divided into three groups (G0, G15, and G20) and fed a complete pelleted ration containing 0%, 15%, and 20% of grape pomace, respectively, for 60 days. The results showed that the addition of grape pomace to the ration markedly increased the average daily feed intake and average daily weight gain in beef cattle. In terms of biochemistry, the levels of total protein (TP) and albumin (ALB) in the G20 group were higher than in the G0 group ( > 0.05). The levels of oleic acid, linoleic acid, and behenic acid were higher in the G20 group than in the G0 group. Grape pomace had no significant effect on rumen fungal diversity and total volatile fatty acids (TVFAs) in beef cattle. The pH and ammonia nitrogen content in the G15 and G20 groups were significantly higher than that in the G0 group. This indicates that grape pomace can be used as feed raw material for beef cattle.
葡萄渣是葡萄酒酿造的副产品，富含营养和多酚，但关于其在肉牛中的应用研究有限。本研究探讨了以葡萄渣为基础的全价颗粒饲料对肉牛生长、血清生化指标、脂肪酸谱和瘤胃微生物群的影响。将15头健康西门塔尔牛随机分为三组（G0、G15和G20），分别饲喂含有0%、15%和20%葡萄渣的全价颗粒日粮60天。结果表明，日粮中添加葡萄渣显著提高了肉牛的平均日采食量和平均日增重。在生化指标方面，G20组的总蛋白（TP）和白蛋白（ALB）水平高于G0组（P>0.05）。G20组的油酸、亚油酸和山嵛酸水平高于G0组。葡萄渣对肉牛瘤胃真菌多样性和总挥发性脂肪酸（TVFAs）无显著影响。G15组和G20组的pH值和氨氮含量显著高于G0组。这表明葡萄渣可作为肉牛的饲料原料。
