富含维生素C和牛膝种子的日粮对雪鳟裂腹鱼生长、生化组成、消化酶活性和脂肪酸生物合成相关基因表达的影响研究（Gray，1832）

IF 1.3 Q3 FISHERIES

Journal of Applied Aquaculture Pub Date : 2021-10-19 DOI:10.1080/10454438.2021.1985679

Guddu Kumar, J. Sharma, R. Goswami, A. Shrivastav, Dr. Neelesh Kumar, S. Chandra, R. Chakrabarti

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引用次数: 0

摘要

雪鳟，Schizothorax richardsonii (Gray, 1832)是喜马拉雅地区重要的经济鱼类。雪鳟鱼苗(118.53±5.42 mg)在流式系统中培养60天。各组分别饲喂含0.08%维生素C (D1)、0.5%牛膝籽(D2)、维生素C和牛膝籽(D3)和对照组(D4)的饲料。饲料中添加D3的鱼的平均体重(271.82±4.90 g)和特定生长率(1.39±0.03)显著高于其他饲料。D3组的消化酶活性显著高于其他组。EPA含量D2(110.33±0.94 mg 100 g−1)和D3(109.87±1.87 mg 100 g−1)显著高于D2(110.33±0.94 mg 100 g−1);DHA(342.70±0.77 mg 100 g−1)和n-3 PUFA(496.17±1.82 mg 100 g−1)含量在D3中显著高于其他各组。fads2d6在D3中的表达量(6.70倍)和elovl5在D2和D3中的表达量(1.51 ~ 1.45倍)显著高于其他细胞。丰富的饲料改善了鱼肉成分。

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The study of effect of vitamin C and Achyranthes aspera seeds enriched diets on the growth, biochemical composition, digestive enzyme activities and expressions of genes involved in the biosynthesis of fatty acids in Snow trout Schizothorax richardsonii (Gray, 1832)

ABSTRACT Snow trout, Schizothorax richardsonii (Gray, 1832), is an economically important fish in the Himalayan region. Snow trout fry (118.53 ± 5.42 mg) were cultured in flow-through systems for 60 days. Fry were fed with four different diets containing: 0.08% vitamin C (D1), 0.5% Achyranthes aspera seeds (D2), both vitamin C and seeds (D3), and a control (D4). Average weight (271.82 ± 4.90 g) and specific growth rate (1.39 ± 0.03) were significantly higher in fish fed D3 compared to the others. Digestive enzyme activities were significantly higher in D3 compared to the others. EPA content was significantly higher in D2 (110.33 ± 0.94 mg 100 g−1) and D3 (109.87 ± 1.87 mg 100 g−1); DHA (342.70 ± 0.77 mg 100 g−1) and n-3 PUFA (496.17 ± 1.82 mg 100 g−1) contents were significantly higher in D3 compared to the others. The expression of fads2d6 was significantly higher in D3 (6.70-fold) and elovl5 in D2 and D3 (1.51–1.45-fold) compared to the others. Enriched diets improved fish flesh composition.

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来源期刊

Journal of Applied Aquaculture Environmental Science-Ecology

CiteScore

3.20

自引率

0.00%

发文量

期刊介绍： The Journal of Applied Aquaculture is a platform for the sharing of practical information needed by researchers to meet the needs of investors, farm managers, extension agents and policy makers working to adapt aquaculture theory to achieve economic and food security objectives in the real world. The journal emphasizes multi-disciplinary research and case studies that propose financially and logistically viable solutions to observable problems.