淡水渔业2026，Vol.56Issue(2)：99-107,9.
每餐投喂策略对鳜摄食、生长及消化健康的影响
Effects of feeding strategies per meal on cibation,growth and digestive health of Siniperca chuatsi
摘要
Abstract
Siniperca chuatsi is a premium aquatic species in China.The advancement of compound feeds and feed acclimation technologies has promoted the expansion of farming industry.However,intense feeding competition in this species leads to growth heterogeneity and health issues under improper feeding strategies.This study in-vestigated the effects of per-meal feeding strategies on the growth performance,visceral health,and feeding ap-petite of mandarin fish.A 12-week feeding trial was conducted with a daily feeding rate of 1%(administered twice daily),comparing two modes:interval feeding(Group A:divided into 5 feedings,20%every 2 minutes within 10 minutes,each feeding lasting 20 seconds with 100-second intervals)and continuous feeding(Group B:divided into 5 feedings,20%per feeding,with the next feeding starting immediately after the feed is con-sumed,without any intervals).Results showed that Group A had significantly lower variability in weight gain and condition factor than Group B,with improved morphological integrity of liver and intestinal tissues.Super-oxide dismutase(SOD)activity was significantly elevated in Group A.Expression levels of orexigenic genes npy and agrp were significantly upregulated,while the anorexigenic gene cart was significantly downregulated in Group A.In conclusion,interval feeding mode enhances growth uniformity,improves visceral health,and boosts feeding appetite in mandarin fish.This study provides a theoretical basis for precise feeding management,facilitating healthy,green,and sustainable large-scale intensive farming of compound feed-fed mandarin fish.关键词
鳜(Siniperca chuatsi)/投喂策略/个体差异/消化健康/食欲相关基因Key words
Siniperca chuatsi/feeding strategies/individual differences/digestive health/genes related to appetite分类
农业科技引用本文复制引用
姜羽婧,谢佳宽,户思婕,张顺,杨军,何珊..每餐投喂策略对鳜摄食、生长及消化健康的影响[J].淡水渔业,2026,56(2):99-107,9.基金项目
设施渔业教育部重点实验(大连海洋大学)开放课题项目(202317) （大连海洋大学）
中央高校基本科研业务费资助(项目批准号BC2024116) （项目批准号BC2024116）
