A study was conducted to investigate the effects of dietary azomite (0.25% or 0.50%) or sea salt (0.5% or 1.0%) on the growth performance and disease resistance of Channel Catfish Ictalurus punctatus. Channel Catfish fingerlings were fed diets that were supplemented with graded levels of azomite or sea salt for 9 weeks in trial 1 and for 5 weeks in trial 2. The growth parameters (weight gain and feed conversion ratio) and survival rate were determined at the end of the feeding trials. The resistance of the fish against Edwardsiella ictaluri infection was also evaluated in those that were fed diets containing 0.5% azomite or 1.0% sea salt in trial 2. The results showed that there was no significant difference in the growth performance of the fish that were fed azomite‐ or sea salt‐supplemented diets compared with control animals (P > 0.05). The mortality rate of Channel Catfish 28 d after the E. ictaluri challenge did not differ significantly between groups receiving different dietary treatments. The results indicate that dietary supplementation with azomite or sea salt at the tested levels had no significant effect on either growth performance or disease resistance against E. ictaluri in Channel Catfish fingerlings.

中文翻译：

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补充Az石和海盐饮食对河on鱼鱼种生长，饲料转化效率，存活率和对爱德华氏菌抗性的影响

进行了一项研究，以研究饮食中的无烟煤（0.25％或0.50％）或海盐（0.5％或1.0％）对海Cat鱼Ictalurus punctatus的生长性能和抗病性的影响。在试验1中喂食Cat鱼鱼种，日粮中添加了分级添加的无水石棉或海盐，试验2中为期9周，试验2中为5周。最终确定了生长参数（增重和饲料转化率）和成活率喂养试验。鱼对爱德华氏菌的抵抗力在试验2中，饲喂日粮含0.5％亚当石或1.0％海盐的日粮中的感染也得到了评估。结果表明，日粮中添加了无烟石或海盐日粮的鱼的生长性能没有显着差异。与对照组动物相比（P  > 0.05）。接受大肠杆菌饮食攻击后28 d，鱼的死亡率在接受不同饮食治疗的组之间无显着差异。结果表明，在所测试的水平上，日粮中添加无水石棉或海盐对Channel鱼鱼种的生长性能或对埃卡塔尔病的抗病性均无明显影响。