摘要
为研究穿心莲对斑点叉尾[鱼回]生长性能的影响。设置8个试验组,每组3个重复,各试验组投喂穿心莲粉含量分别为0%,0.38%,0.75%,1.13%,1.88%,2.25%,2.63%和3.00%的饲料,试验周期为30 d。结果显示,各试验组鱼体的体质量增长率和特定生长率均随穿心莲添加量的增加呈先上升后下降的趋势,其中G4组和G5组较高,显著高于其他试验组(P<0.05);斑点叉尾[鱼回]的肥满度和肝体比也随穿心莲添加量的增加呈现出先升高后降低的趋势;G2组肥满度显著高于其他各组(P<0.05);G1组的肝体比显著高于G0组和G7组(P<0.05),与其他组无显著差异(P>0.05)。指出,在斑点叉尾[鱼回]饲料中添加穿心莲能提高鱼体的生长性能,其中以1.88%的添加量效果最佳。
The study aimes to investigate the effect of Andrographis paniculata on growth performance of channel catfish(Ictalurus punctatus). I. punctatus were divided into 8 treatment groups with 3 replicates, fed for30 days with the diets adding different level of A. paniculata(0%, 0.38%, 0.75%, 1.13%, 1.88%, 2.25%, 2.63%,3.00%), respectively. The results showed that, the weight gain rate(WGR) and the specific growth rate(SGR) increased first and then decreased with the amount of A. paniculata adding. The WGR an SGR of Group G4, G5 were significantly higher than other groups(P<0.05). The condition factor and the liver body ratio also showed a trend of increasing first and then decreasing with the amount of A. paniculata adding. Group G2 was significantly higher than other groups(P<0.05). The liver body ratio of Group G1 was significantly higher than Group G0, G7(P<0.05), and there was no significant difference between Group G2, G3, G4, G5, G6(P>0.05). The results indi cated that the diets supplemented with A. paniculata help to improve growth performance of I. punctatus, especially the diets supplemented with 1.88% of A. paniculata with the best enhancement effect.
作者
麻艳群
覃志彪
陈晶
MA Yanqun;QIN Zhibiao;CHEN Jing(College of Animal Science and Technology,Guangxi University,Nanning,Guangxi 530005,China)
出处
《水产养殖》
CAS
2022年第2期31-34,共4页
Journal of Aquaculture
基金
广西农业农村厅“2020”广西渔业健康养殖监管系统建设项目(桂农厅函[2020]908号)。
关键词
斑点叉尾[鱼回]
穿心莲
生长性能
Ictalurus punctatus
Andrographis paniculata
Growth properties
