Dietary Chlorella vulgaris and Saccharomyces cerevisiae enhanced the growth performance, blood biomarkers, and antioxidative capacity of common carp (Cyprinus carpio)

IF 2.7 Q2 MULTIDISCIPLINARY SCIENCES

Scientific African Pub Date : 2024-09-24 DOI:10.1016/j.sciaf.2024.e02407

Mohamed El-Mashtoly , Fawzy I. Magouz , Shawky Darwish , Asem A. Amer , Amr I. Zaineldin , Mahmoud S. Gewaily , Mahmoud A.O. Dawood

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引用次数: 0

Abstract

Chlorella vulgaris (CV) has been investigated in aquaculture and shown as a potential functional feed additive. Therefore, this study tested the effects of dietary CV and Saccharomyces cerevisiae (SC) on the growth performance, blood biomarkers, and antioxidative capacity of common carp (Cyprinus carpio). Fish were allocated in four groups in triplicates, where each glass aquaria was stocked with 15 fish with 4.25±0.11 g/fish. Fish offered four test diets for 84 days: control (free from CV or/and SC), CV-supplemented diet (5 %), SC-supplemented diet (0.05 %; (10 × 10⁹ CFU/g), and a mixture of CV and SC-supplemented diet (5 % CV+ 0.05 % SC), respectively. The results indicated that fish-fed CV or SC revealed enhanced growth performance (final weight, weight gain, and specific growth rate) and protein efficiency ratio, while the feed conversion ratio was reduced compared to the control. Fish-fed dietary SC or CV and SC mixture revealed higher villi length than the control. Besides, villi width and muscular thickness enhanced significantly in carps-fed CV and SC compared to the control. Fish-fed dietary CV and/or SC revealed lower moisture content and higher crude protein and total lipids than the control. The results indicated that fish-fed CV or SC revealed higher serum total protein than the control. On the other hand, the total cholesterol and triglyceride levels were markedly reduced in carps-fed dietary CV and/or SC compared to the control. The results indicated that fish-fed CV and/or SC revealed higher lysozyme activity, catalase, and glutathione peroxidase than the control. The superoxide dismutase of fish-fed CV or SC is higher than that of the control or CV and SC mixture. Additionally, the malondialdehyde levels (MDA) were markedly reduced in carp-fed dietary CV and/or SC compared to the control group. In conclusion, dietary C. vulgaris and/or S. cerevisiae can enhance growth performance and feed utilization in common carp. Besides, the biochemical blood markers and activated antioxidative capacity indicated that common carp fed C. vulgaris and/or S. cerevisiae revealed stable health status.

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膳食小球藻和酿酒酵母可提高鲤鱼的生长性能、血液生物标志物和抗氧化能力

小球藻（CV）已在水产养殖中得到研究，并被证明是一种潜在的功能性饲料添加剂。因此，本研究测试了膳食 CV 和酿酒酵母（SC）对鲤鱼（Cyprinus carpio）生长性能、血液生物标志物和抗氧化能力的影响。将鲤鱼分为四组，每组 15 尾，每尾重 4.25±0.11 克。鱼类在 84 天内食用四种试验日粮：对照组（不含 CV 或/和 SC）、添加 CV 的日粮（5%）、添加 SC 的日粮（0.05%；（10 × 109 CFU/g））以及 CV 和 SC 混合添加日粮（5% CV+ 0.05% SC）。结果表明，与对照组相比，鱼类摄入 CV 或 SC 能提高生长性能（最终体重、增重和特定生长率）和蛋白质效率比，而饲料转化率则有所降低。喂食 SC 或 CV 和 SC 混合物的鱼的绒毛长度高于对照组。此外，与对照组相比，投喂 CV 和 SC 的鲤鱼的绒毛宽度和肌肉厚度明显增加。与对照组相比，喂食 CV 和/或 SC 的鱼的水分含量较低，粗蛋白和总脂含量较高。结果表明，与对照组相比，喂食 CV 或 SC 的鱼血清总蛋白含量更高。另一方面，与对照组相比，鲤鱼饲料 CV 和/或 SC 中的总胆固醇和甘油三酯水平明显降低。结果表明，与对照组相比，喂食 CV 和/或 SC 的鲤鱼溶菌酶活性、过氧化氢酶和谷胱甘肽过氧化物酶较高。鱼饲喂 CV 或 SC 的超氧化物歧化酶高于对照组或 CV 和 SC 混合物。此外，与对照组相比，鲤鱼饵料 CV 和/或 SC 的丙二醛水平（MDA）明显降低。总之，饵料中的鲤鱼红球藻和/或麦角菌可提高鲤鱼的生长性能和饲料利用率。此外，血液生化指标和活化抗氧化能力表明，鲤鱼饲喂草鱼和/或谷维素后健康状况稳定。

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来源期刊

Scientific African Multidisciplinary-Multidisciplinary

CiteScore

5.60

自引率

3.40%

发文量

332

审稿时长

10 weeks