饲料研究2026，Vol.49Issue(12)：57-62,6.DOI:10.13557/j.cnki.issn1002-2813.2026.12.010
复合添加剂对夏季高温养殖黄斑蓝子鱼摄食、生长性能及肝脏健康的影响
Effects of compound additive on feeding,growth performance,and liver health of Siganus guttatus under summer high-temperature breeding
摘要
Abstract
The experiment aimed to investigate the effects of a compound additive made from Gracilaria lemaneiformis residue and silkworm excrement on the feeding,growth performance,and liver health of Siganus guttatus under summer high-temperature breeding.A total of 225 healthy juvenile fish with an average weight of(7.37±0.06)g were randomly divided into five groups,with three replicates per group and 15 fish per replicate.Using equal nitrogen and fat diet,groups MT1 to MT5 were added with compound additives of 0,0.5%,1.0%,1.5%,and 2.0%,respectively.The pre-test period was 2 weeks and the formal test period was 8 weeks.The results showed that compared with the group MT1,the final weight and weight gain rate of the groups MT2 and MT3 were significantly increased(P<0.05),while the feed coefficient decreased.As the level of the compound additive increased,the feed intake was significantly increased(P<0.05),and the abdominal fat rate showed a trend of first increasing and then decreasing.The activities of serum catalase(CAT)and superoxide dismutase(SOD)in groups MT2 to MT5 were higher than those in group MT1.The CAT activity in groups MT2 and MT5,as well as the SOD activity in group MT4,were significantly higher than those in group MT1(P<0.05).The activity of alanine aminotransferase(ALT)in the group MT5 was significantly lower than the group MT1(P<0.05).As the level of composite additives increased,the serum triglyceride(TG)content decreased,while the malondialdehyde(MDA)content increased.The MDA content in the group MT5 was significantly higher than that in the other groups(P<0.05).As the level of the composite additive increases,the degree of liver vacuolation decreases,and among them,the group MT3 shows a better improvement in inflammation.The study shows that a 1.0%compound additive can improve the growth performance,enhance its antioxidant capacity,reduce the feed conversion ratio,and alleviate liver lipid accumulation and inflammatory responses of Siganus guttatus under summer high-temperature breeding.关键词
黄斑蓝子鱼/龙须菜废渣/蚕沙/高温胁迫/生长性能Key words
Siganus guttatus/Gracilaria lemaneiformis residue/silkworm excrement/high-temperature stress/growth performance分类
农业科技引用本文复制引用
邓嘉诚,郝延森,詹涵,麦克,王树启,李锐鑫,陈翠英..复合添加剂对夏季高温养殖黄斑蓝子鱼摄食、生长性能及肝脏健康的影响[J].饲料研究,2026,49(12):57-62,6.基金项目
广东省科技专项资金项目(项目编号:STKJ202209037):广东省"百千万工程"县域创新基地项目(项目编号:STKJ2024003) （项目编号:STKJ202209037）
广东省"百千万工程"农村科技特派员项目(项目编号:KTP20240854) （项目编号:KTP20240854）
广东海珍海藻生物科技有限公司横向项目(项目编号:20220224-H) （项目编号:20220224-H）
