河南农业科学2025，Vol.54Issue(3)：139-146,8.DOI:10.15933/j.cnki.1004-3268.2025.03.015
投喂频率对乌苏里拟鲿幼鱼生长特性、消化酶活性和肌肉营养成分的影响
Effects of Feeding Frequency on Growth Characteristics,Digestive Enzymes Activities and Muscle Nutrient Composition of Juvenile Pseudobagrus ussuriensis
摘要
Abstract
The effects of feeding frequency[1(F1),2(F2),3(F3)and 4(F4)times per day]on growth characteristics,intestinal digestive enzyme(lipase,α-amylase,trypsin)activity,liver aminotransferase(aspartate aminotransferase,alanine aminotransferase)activity and muscle nutrient composition of juvenile Pseudobagrus ussuriensis were studied,so as to determine the optimal feeding frequency and improve the feed utilization and nutritional quality of juvenile Pseudobagrus ussuriensis.The results showed that the final body weight,specific growth rate of body weight,relative increase rate of body weight,daily increase of body weight and specific growth rate of body length of Pseudobagrus ussuriensis of F2 group were significantly higher than those of F1 and F3 groups.The activity of intestinal lipase of F1 group was significantly higher than that of other groups.The intestinal trypsin activity of F2 group was the highest,and significantly higher than that of F3 and F4 groups.The feeding frequency had no significant influence on the activity of aspartate aminotransferase in liver tissue,and the activity of alanine aminotransferase of F1 group was significantly higher than that of other experimental groups.The crude protein contents of F2 and F4 groups were significantly higher than those of F1 and F3 groups.The crude lipid content of F4 group was the lowest,which was significantly lower than that of other experimental groups.There was significant difference in total amino acid content among different groups,the order was F1＞F3＞F2＞F4.In conclusion,it is suggested that the feeding frequency should be 2 times per day,which is more conducive to the growth of Pseudobagrus ussuriensis.关键词
乌苏里拟鲿/投喂频率/生长特性/消化酶活性/肌肉营养成分Key words
Pseudobagrus ussuriensis/Feeding frequency/Growth characteristic/Digestive enzyme activity/Muscle nutrient composition分类
农业科技引用本文复制引用
陈军平,孙文喜,武慧慧,沈方方,张佳鑫,于若梦,付永杰,胡吉帮,赵道全,谢国强..投喂频率对乌苏里拟鲿幼鱼生长特性、消化酶活性和肌肉营养成分的影响[J].河南农业科学,2025,54(3):139-146,8.基金项目
河南省科技攻关项目(242102110063) （242102110063）
