摘要
为研究黄芩素对草鱼生长性能、血清抗氧化能力和肌肉品质的影响,在基础饲料中分别添加0(对照组)、0.1、0.2、0.4和0.6g/kg黄芩素,配制成5组饲料,饲养平均体质量为(75.8±0.24)g的草鱼60d。结果显示,鱼体增重率与黄芩素含量呈二次曲线关系;在添加0.2g/kg黄芩素时,鱼体增重率最大(210.1%),较对照组提高了8.63%,而饲料系数较对照组降低0.14;添加0.2、0.4和0.6g/kg黄芩素显著提高了血清SOD活性,降低了MDA含量,添加0.4g/kg黄芩素显著提高了血清CAT活性。各组在AKP活性和LZM含量上无显著差异。0.4和0.6g/kg黄芩素组的肌肉总氨基酸含量和总必需氨基酸含量显著高于对照组,0.6g/kg黄芩素组的总非必需氨基酸含量也显著高于对照组。各处理组在肌肉水分、粗蛋白、粗脂肪、灰分、胶原蛋白含量、肌肉失水率以及肌纤维密度和直径上差异不显著。上述结果显示,黄芩素可促进草鱼生长,提高血清抗氧化能力。草鱼饲料中黄芩素的添加量推荐为0.2g/kg。
To investigate the effects of dietary baicalein on the growth performance, anti-oxidation indicators and flesh quality of grass carp, five diets were prepared with the baicalein addition at 0(control diet), 0.1, 0.2, 0.4, 0.6 g/kg,and fed to grass carp with an initial body weight of(75.8±0.24) g. After 60 days of feeding, the weight gain showed quadratic relationship with dietary baicalein level, and the supplementation of 0.2 g/kg baicalein improved weight gain by 8.63% and decreased feed conversion ratio by 0.14 when compared to the control group. Serum SOD activity increased and MDA level decreased by the addition of 0.2-0.6 g/kg baicalein. Serum CAT activity also increased by the addition of 0.4 g/kg baicalein, while AKP and lysozyme activity showed no significant difference among groups. The addition of 0.4 and 0.6 g/kg baicalein increased the total amino acids and the total essential amino acids in flesh, and the total nonessential amino acids increased by the addition of 0.6 g/kg baicalein. There were no significant differences in the proximate composition and water-holding capacity of flesh,and muscle fiber density and diameter also showed no difference among groups. In conclusion, dietary baicalein could improve the growth and anti-oxidant ability of grass carp, and the recommended supplemental level of baicalein was 0.2 g/kg.
作者
徐禛
杨航
梁高杨
高擘为
李小勤
冷向军
XU Zhen;YANG Hang;LIANG Gaoyang;GAO Bowei;LI Xiaoqin;LENG Xiangjun(National Demonstration Center for Experimental Fisheries Science Education,Shanghai Ocean University,Shanghai 201306,China;Centre for Research on Environmental Ecology and Fish Nutrition (CREEFN) of the Ministry of Agriculture and Rural Affairs,Shanghai Ocean University,Shanghai201306,China;Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding,Shanghai Ocean University,Shanghai201306,China)
出处
《水产学报》
CAS
CSCD
北大核心
2019年第11期2383-2393,共11页
Journal of Fisheries of China
基金
国家自然科学基金(31772858)
卓越农林人才教育培养计划(A1-0201-00-0001)~~
关键词
草鱼
黄芩素
生长性能
抗氧化
肌肉品质
Ctenopharyngodon idella
baicalein
growth
anti-oxidation
flesh quality
