腐植酸凝胶对低淀粉浮性水产膨化颗粒饲料质量的影响  

Effects of Humic Acid Hydrogel on Product Qualities of Low Starch Extruded Floating Aquatic Feed

作　　者：董颖超[1] 李世强 李金路 李军国[1] 杨洁 牛力斌[1] 张聪 DONG Yingchao;LI Shiqiang;LI Jinlu;LI Junguo;YANG Jie;NIU Libin;ZHANG Cong(Institute of Feed Research,China Agricaltural Acedemy of Sciences,Beijing 100081,China;Shandong Highvarve Biotechnology Co.,Ltd.,Shandong Jinan 250100,China)

机构地区：[1]中国农业科学院饲料研究所,北京100081 [2]山东亚太海华生物科技有限公司,山东济南250100

出　　处：《饲料工业》2024年第22期114-122,共9页Feed Industry

摘　　要：试验旨在研究两种不同腐植酸凝胶对低淀粉浮性水产膨化颗粒饲料质量,如膨化饲料容重、溶失率、软化时间、颗粒饲料耐久性指数(PDI)、硬度、膨化率和黏弹性的影响。共设8个试验组,分别为:NCon组(阴性对照组)为典型低淀粉配方(淀粉含量为8%)的基础混合物料,PCon组(阳性对照组)为在基础混合物料中额外添加高筋面粉,MS0.2、MS0.4和MS0.6组为在基础混合物料中添加0.2%、0.4%、0.6%的木石瑰宝腐植酸凝胶,XD0.2、XD0.4和XD0.6组为在基础混合物料中添加0.2%、0.4%、0.6%的新大能腐植酸凝胶。结果表明:①与NCon组相比,PCon组容重显著降低、膨化率显著升高(P<0.05)。②与NCon组相比,MS0.2、MS0.4组的饲料硬度显著提高、黏弹性显著降低(P<0.05),MS0.2组软化时间显著提高(P<0.05),MS0.2、MS0.4和MS0.6组溶失率和容重显著降低、膨化率显著提高(P<0.05);XD0.2、XD0.4、XD0.6组的饲料膨化率、硬度、软化时间显著提高,黏弹性和溶失率显著降低(P<0.05)。③与PCon组比,MS0.2组膨化率显著提高(P<0.05),MS0.2、MS0.4组黏弹性显著降低、硬度显著提高(P<0.05),MS0.6组容重显著降低(P<0.05),MS0.2、MS0.6组PDI显著提高(P<0.05),MS0.2、MS0.4、MS0.6组溶失率显著降低(P<0.05);XD0.2、XD0.4、XD0.6组的饲料容重、硬度和软化时间显著提高,溶失率和黏弹性显著降低(P<0.05),XD0.4组膨化率显著降低(P<0.05),XD0.6组PDI显著提高(P<0.05)。综合比较,添加腐植酸凝胶优于添加高筋面粉,木石瑰宝添加组的产品质量优于新大能添加组。研究为腐植酸凝胶在低淀粉浮性水产膨化颗粒饲料生产实践中的应用提供数据支持。The effect of adding two different humic acid hydrogel on the quality of low starch floating aquatic extruded pellet feed was studied,such as extruded feed bulk density,dissolution rate,softening time,pellet feed durability index(PDI),hardness,expansion rate and viscoelasticity.A total of 8 experimental groups were set up,which were:NCon group(negative control group):for the typical low starch formula(starch content of 8%)of the basic mixture;PCon group(positive control group):to add high gluten flour in the base material,MS0.2,MS0.4 and MS0.6 groups:to add 0.2%,0.4%,0.6%wood-stone gem humic acid hydrogel in the base material;XD0.2,XD0.4 and XD0.6 groups:for adding 0.2%,0.4%,0.6%new energetic humic acid hydrogel into the base mixture.The results showed that:①compared with NCon group,the volume weight of PCon group was significantly decreased and the bulking rate was significantly increased(P<0.05).②Compared with NCon group,the feed hardness and viscoelasticity of MS0.2 and MS0.4 groups were significantly increased(P<0.05),and the softening time of MS0.2 group was significantly increased(P<0.05),in the groups of MS0.2,MS0.4 and MS0.6,the dissolution rate and bulk density were significantly decreased and the expansion rate was significantly increased(P<0.05),while in the groups of XD0.2,XD0.4 and XD0.6,the expansion rate,hardness and softening time were significantly increased,the viscoelasticity and dissolution rate decreased significantly(P<0.05).③Compared with PCon group,the expansion rate of MS0.2 group was significantly increased(P<0.05),the viscoelasticity and hardness of MS0.2 and MS0.4 groups were significantly decreased(P<0.05),and the volume weight of MS0.6 group was significantly decreased(P<0.05),PDI was significantly increased in MS0.2,MS0.6 groups(P<0.05),dissolution rate was significantly decreased in MS0.2,MS0.4,MS0.6 groups(P<0.05),feed bulk density,hardness and softening time were significantly increased in XD0.2,XD0.4,XD0.6 groups,the dissolution rate and viscoelasticity were significantly

关 键 词：腐植酸凝胶 低淀粉 膨化颗粒饲料 产品质量 水产 

分 类 号：S816[农业科学—饲料科学]