纳米硒补充：提高淡水鱼，鲤鱼的生长、消化率和矿物质吸收率。

Nano-selenium supplementation: improving growth, digestibility and mineral absorption in freshwater fish, Catla catla.

机构信息

Department of Zoology, University of Jhang, Jhang, 35200, Pakistan.

Fish Nutrition Laboratory, Department of Zoology, Government College University Faisalabad, Faisalabad, 38000, Pakistan.

出版信息

BMC Vet Res. 2024 Sep 28;20(1):438. doi: 10.1186/s12917-024-04291-6.

BACKGROUND

This research investigated the impact of selenium-nanoparticles (Se-NPs) supplemented in sunflower meal (SM)-based diets on digestibility, mineral absorption, and growth performance of Catla catla. Se-NPs were added to seven test meals in varying amounts (0, 0.5, 1, 1.5, 2, 2.5 and 3 mgkg). A total of 315 fish were evenly allocated three replicate tanks, with 15 fish per tank, and given diets equivalent to (5%) of their wet biomass daily for a period of 90 days.

RESULTS

The test diet (T-D) supplemented with 1.5 mgkg Se-NPs yielded remarkable results, including a significant increase in mean weight gain (14 g), an impressive average weight gain percentage (208%), a 100% survival rate, with no mortality observed and the highest specific growth rate (1.25). Moreover, 1.5 mgkg Se-NPs (T-D-IV) demonstrated superior nutritional digestibility (CP, 76%; CF, 79% and GE, 74%). Additionally, the diet 1.5 mgkg Se-NPs showed enhanced mineral absorption (K, P, Ca, Na, Zn, Cu and Fe) than other diets.

CONCLUSION

It was practically proven that the growth indices, nutrient absorption, and mineral status of C. catla were significantly improved by Se-NPs supplemented SM-based diets, with the optimum level of supplementation being 1.5 mgkg.

背景

本研究调查了在基于葵花粕（SM）的饮食中添加硒纳米粒子（Se-NPs）对印度鲤生长性能、消化率和矿物质吸收的影响。在七种测试饮食中，以不同的量（0、0.5、1、1.5、2、2.5 和 3 mgkg）添加了 Se-NPs。共有 315 条鱼被平均分配到三个重复水箱中，每个水箱有 15 条鱼，每天给予相当于其湿重 5%的饮食，持续 90 天。

结果

补充 1.5 mgkg Se-NPs 的测试饮食（T-D）产生了显著的结果，包括平均体重增加（14g）显著增加，平均体重增加百分比（208%）令人印象深刻，存活率为 100%，没有观察到死亡率，特定生长率（SGR）最高（1.25）。此外，1.5 mgkg Se-NPs（T-D-IV）表现出较高的营养消化率（CP、76%；CF、79%和 GE、74%）。此外，与其他饮食相比，1.5 mgkg Se-NPs 饮食显示出更好的矿物质吸收（K、P、Ca、Na、Zn、Cu 和 Fe）。