广西17种非粮饲料资源营养价值监测

Nutritional value monitoring of 17 kinds of non-grain feed resources in guangxi

测定分析广西区域内17种非粮饲料资源的营养价值、有效能值、黄曲霉毒素B1、重金属等基础性数据。结果表明:17种非粮饲料主要营养成分平均含量为干物质89.64%、粗蛋白质8.24%、粗脂肪2.46%、粗纤维30.7%、中性洗涤纤维61.73%、酸性洗涤纤维43.71%、粗灰分7.93%、钙0.6%、磷0.24%。综合净能由高到低的顺序为桑枝、象草青贮、象草、甘蔗尾叶青贮、玉米秸秆青贮、香蕉茎叶、旱藕渣、甘蔗尾叶、玉米秸秆、红薯藤、木薯渣、花生藤、稻草、米糠、啤酒渣、木薯杆、罗汉果渣。重金属平均含量铅0.688 0mg/kg,镉0.231 4mg/kg,铬1.568 8mg/kg,17种非粮饲料重金属含量均在允许量正常范围内。黄曲霉毒素B1检测结果在27.65~0.07μg/kg,也在许量范围内。

The nutritional value,effective energy value,aflatoxin B 1,heavy metals and other basic data of 17 kinds of non-grain feed resources in guangxi region were determined.The results showed that the average contents of main nutrients of 17 kinds of non-grain feed wereas follow:dry matter89.64%,crude protein 8.24%,crude fat 2.46%,crude fiber 30.7%,neutral detergent fiber61.73%,acid detergent fiber 43.71%,crude ash 7.93%,calcium0.6%,phosphorus 0.24%.The comprehensive net energy from high to low was mulberry branch,elephant grass silage,elephant grass,sugarcane tail leaf silage,corn stalks silage,banana stem and leaf,dry lotus root residue,sugarcane tail leaf,corn straw,sweet potato vine,cassava residue,peanut vine,rice straw,rice bran,beer residue,cassava sticks and Momordica grosvenori dregs.The contents of heavy metals in 17 kinds of non-grain feed were all within the allowable range.Lead content was 0.688 0 mg,cadmium content was 0.231 4 mg,chromium content was 1.568 8 mg.The test results of aflatoxin B 1 were at 27.65~0.07μg,which was also in the allowable range.