添加物可改善以苜蓿/高羊茅牧场新鲜草料为食的绵羊的生长、消化率和新陈代谢。
Addition Improves Growth, Digestibility, and Metabolism of Sheep Fed on Fresh Forage from Alfalfa/Tall Fescue Pasture.
作者信息
Liu Xulei, Liu Fuyao, Yan Tianhai, Chang Shenghua, Wanapat Metha, Hou Fujiang
机构信息
State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China.
Agri-Food and Biosciences Institute, Hillsborough, County Down BT26 6DR, UK.
出版信息
Animals (Basel). 2020 Apr 12;10(4):668. doi: 10.3390/ani10040668.
This study is targeted at evaluating whether addition promotes digestion, nitrogen and energy use, and methane production of sheep fed on fresh forage from alfalfa/tall fescue pastures. The sheep feeding trial was conducted with four addition levels with powder, and a basal diet of fresh alfalfa and tall fescue (). Addition levels of 4% and 6% improved average body weight gain (BWG) by 215.71 and 142.86 g/d, and feed conversion ratio (FCR) by 0.20 and 0.14, respectively. Digestibility of dry matter (DM), organic matter (OM), neutral detergent fiber (NDF), and ether extract (EE) was 62.25%, 65.18%, 58.75%, and 47.25% under the addition level of 2%, which is greater than that in the control group. addition improved energy utilization efficiency, while addition levels of 2% and 4% increased nitrogen intake and deposited nitrogen. Overall, has the potential to improve growth performance, digestion of sheep, so it has suitability to be used as a feed additive.
本研究旨在评估添加物是否能促进以苜蓿/高羊茅牧场新鲜牧草为食的绵羊的消化、氮和能量利用以及甲烷产生。绵羊饲养试验采用了四种添加物水平的粉末，并以新鲜苜蓿和高羊茅作为基础日粮（）。4%和6%的添加水平分别使平均体重增加（BWG）提高了215.71克/天和142.86克/天，饲料转化率（FCR）提高了0.20和0.14。在2%的添加水平下，干物质（DM）、有机物（OM）、中性洗涤纤维（NDF）和乙醚提取物（EE）的消化率分别为62.25%、65.18%、58.75%和47.25%，高于对照组。添加物提高了能量利用效率，而2%和4%的添加水平增加了氮摄入量和沉积氮。总体而言，添加物有潜力提高绵羊的生长性能和消化能力，因此适合用作饲料添加剂。
Zotero 插件