Ma Jixiang, Liu Hua, Liu Mengqi, Xu Junying, Lu Jiading, Cao Shixi, Li Shouren, Ma Sen, Wang Zhichang, Zhu Xiaoyan, Li Defeng, Sun Hao, Shi Yinghua, Cui Yalei
College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China.
Henan Key Laboratory of Innovation and Utilization of Grassland Resources, Zhengzhou 450002, China.
Foods. 2023 Oct 15;12(20):3786. doi: 10.3390/foods12203786.
Peanut vine is a typical peanut by-product and can be used as a quality roughage resource. Whole-plant corn silage is a commonly used roughage. However, few studies have investigated the effects of diets combining peanut vine and whole-plant corn silage on growth performance, antioxidant capacity, meat quality, rumen fermentation and microbiota of beef cattle. To investigate these effects, eighty Simmental crossbred cattle (body weight, 451.27 ± 10.38 kg) approximately 14 months old were randomly divided into four treatments for a 90-day feeding experiment. A one-way design method was used in this experiment. According to the roughage composition, the cattle were divided into a control treatment of 45% wheat straw and 55% whole-plant corn silage (WG), and three treatments of 25% peanut vine and 75% whole-plant corn silage (LPG), 45% peanut vine and 55% whole-plant corn silage (MPG), and 65% peanut vine and 35% whole-plant corn silage (HPG), and the concentrate was the same for all four treatment diets. The results showed that compared to the WG group, the MPG group experienced an increase in their average daily feed intake of 14%, an average daily gain of 32%, and an increase in SOD activity in the spleen of 33%; in the meat, dry matter content increased by 11%, crude protein by 9%, and ether extract content by 40%; in the rumen, the NH-N content was reduced by 36%, the relative abundance of increased, and the relative abundance of decreased ( < 0.05). These results showed the composition of 45% peanut vine and 55% whole-plant corn silage in the roughage improved growth performance, antioxidant capacity, meat quality, rumen fermentation, and microbiota of beef cattle.
花生秧是典型的花生副产品，可作为优质粗饲料资源。全株玉米青贮是常用的粗饲料。然而，很少有研究调查花生秧与全株玉米青贮组合日粮对肉牛生长性能、抗氧化能力、肉质、瘤胃发酵和微生物群的影响。为了研究这些影响，将80头约14月龄的西门塔尔杂交牛（体重451.27±10.38千克）随机分为4组，进行为期90天的饲养试验。本试验采用单因素设计方法。根据粗饲料组成，将牛分为对照组，即45%小麦秸秆和55%全株玉米青贮（WG），以及三个试验组，分别为25%花生秧和75%全株玉米青贮（LPG）、45%花生秧和55%全株玉米青贮（MPG）、65%花生秧和35%全株玉米青贮（HPG），所有4种日粮的精料相同。结果表明，与WG组相比，MPG组平均日采食量提高了14%，平均日增重提高了32%，脾脏中超氧化物歧化酶（SOD）活性提高了33%；肉中干物质含量提高了11%，粗蛋白提高了9%，乙醚提取物含量提高了40%；瘤胃中氨态氮（NH-N）含量降低了36%，[具体微生物名称1]的相对丰度增加，[具体微生物名称2]的相对丰度降低（P<0.05）。这些结果表明，粗饲料中45%花生秧和55%全株玉米青贮的组成改善了肉牛的生长性能、抗氧化能力、肉质、瘤胃发酵和微生物群。
