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首页> 外文期刊>International Journal of Aquatic Biology >Efficacy of fish oil- and linseed oil-enriched Artemia nauplii on growth performance and stress resistance of tiger barb larvae (Puntius tetrazona)
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Efficacy of fish oil- and linseed oil-enriched Artemia nauplii on growth performance and stress resistance of tiger barb larvae (Puntius tetrazona)

机译：鱼油和亚麻子油丰富的无节幼体对老虎倒钩幼虫（Puntius tetrazona）的生长性能和抗逆性的功效

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Fish oil is the important fat source in fish nutrition. High demand for fish oil and low global supply arise a need of alternative oils in fish culture. Plant oils are a good candidate in this case. The aim of the present study was to compare the efficacy of fish oil and linseed oil on growth and stress resistance of tiger barb ( Puntius tetrazona ) larvae. Artemia nauplii were enriched by 2.5, 5 and 7.5 of each oil. The enriched nauplii were offered to larvae for 14 d. thereafter, fish were fed non-enriched nauplii for another 14 d. At the end of the trial, larvae were subjected to osmotic stress and their survival was recorded. There was no significant difference in final weight, SGR and weight gain among the treatments at day 14. However, oil type and oil levels significantly affected these parameters after 28 d. Fish of 2.5-LO and 5-FO groups showed the best and worst performance, respectively. There was no significant difference in survival rate among the treatments, after 14 and 28 d; however, oil type significantly affected survival of the larvae after osmotic stress. Survival of larvae fed on linseed oil-enriched nauplii was significantly higher than that of those fed on fish oil-enriched nauplii. Linseed oil showed significantly better results in growth performance and stress resistance compared to fish oil. It is concluded that linseed oil is more suitable than fish oil for Artemia enrichment to feed tiger barb larvae. The potential reasons for the better performance of larvae fed on linseed oil-enriched Artemia were discussed.
机译：鱼油是鱼类营养中重要的脂肪来源。鱼油的高需求和全球供应量的减少导致鱼养殖需要替代油。在这种情况下，植物油是很好的选择。本研究的目的是比较鱼油和亚麻籽油对虎倒钩（Puntiustetrazona）幼虫生长和抗逆性的功效。每种油中的无节幼体富含2.5、5和7.5。将丰富的无节幼体提供给幼体14天。此后，再给鱼类喂食未富集的无节幼体14天。试验结束时，对幼虫进行渗透压处理并记录其存活情况。在第14天时，最终体重，SGR和体重增加之间无显着差异。但是，油的类型和油水平在28 d后显着影响这些参数。 2.5-LO和5-FO组的鱼分别表现出最佳和最差的表现。 14天和28天后，各治疗之间的生存率无显着差异;然而，油的类型显着影响了渗透胁迫后幼虫的存活。饲喂亚麻籽油的无节幼体的幼虫的存活率显着高于饲喂鱼油的无节幼体的幼虫的存活率。与鱼油相比，亚麻籽油在生长性能和抗逆性方面显示出明显更好的结果。结论是，亚麻籽油比鱼油更适合于卤虫的富集，以饲喂虎倒钩幼虫。讨论了富含亚麻籽油的卤虫的幼虫表现更好的潜在原因。

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