温度对人工繁育黑斑狗鱼生长性能和摄食效率的影响

打开文本图片集

中图分类号S965.1 献标识码A 章编号 1007-7731（2025）23-0046-04

DOI号 10.16377/j.cnki.issn1007-7731.2025.23.011

Effects of temperature on the growth performance and feeding efficiency of artificiallybredEsoxreicherti

SUN JiaweiLINannanWENFengLIU Zixuan WANG PengweiKANG ZhenkunLU LuZHANG Zhaoyong （Hulunbuir Inland LakeResearch Instituteof Northern Coldand Arid Areas，Hulunbuir O21OO8，China）

AbstractTo investigate theeffectsof temperature on thegrowthand feeding of Esoxreicherti，this study was conducted with 36 individuals of Esox reicherti as experimental subjects，which were randomly asigned to 4 temperature treatments （9 fish per treatment） at 5，10，15，and 20°C ，respectively.After5 weeks，the experimental fish were sampled， and indicators including daily weight gain （DWG），specific growthrate （SGR），growth eficiency（GE），foodconversion ratio （FCR），andfeeding rate（FR）ofeach group weredeterminedandcalculated.Additionally，quadraticregression equations were fited between temperature and the growth/feeding indicators.Theresults of growth indicators showed that within the temperature range of ，theDWG，SGR，and GE of Esox reicherti first increased and then decreased with increasing temperature.Regresson analysis revealed that the maximum SGR of Esoxreicherti was achieved at15.38 ΔC ，and the maximum GE was reached at 11.O6 ℃. The results of feeding indicators indicated that within 5-20 C，the FCR and FR of Esox reicherti first decreased and then increased with rising temperature.Regression analysis showed thatthe FCRof Esox reicherti was the minimum value at1O℃.In conclusion，underthe experimental conditions， the optimal growth temperature for Esox reicherti is approximately 15°C ，and this temperature range is conducive to the rapid digestion and absorption of food by this fish species.

KeywordsEsoxreicherti;feeding;temperature;specificgrowthrate

摄食作为动物最基本的生理行为之一，为动物生存、生长、发育及繁殖等提供物质基础。（剩余5070字）