颗粒饲料和挤压饲料对尼罗罗非鱼（Oreochromis niloticus L.）网箱养殖生长、经济收入和营养负荷影响的比较研究

IF 1.3 Q3 FISHERIES

Journal of Applied Aquaculture Pub Date : 2021-12-05 DOI:10.1080/10454438.2021.2011528

S. Musa, C. Aura, T. Tomasson, Ó. Sigurgeirsson, H. Thorarensen

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引用次数: 2

摘要

摘要本研究比较了五大湖地区使用挤压饲料(EF)和颗粒饲料(PF)指导网箱养殖投资的效益。同一养殖场的6个网箱中有3个网箱喂鱼粉，另一个养殖场的另一半网箱喂鱼粉。两种饲料的粗蛋白质、脂肪和能量含量相似。但PF中的纤维含量是EF的4倍。鱼粉饲料的生长(438.0±7.4 g)优于鱼粉饲料(220.8±2.9 g)，鱼粉饲料的生产成本比鱼粉饲料低26%左右，主要是由于鱼粉饲料利用率较高。饲粮中磷和氮的负荷分别比饲喂EF时高59%和29%。因此，EF饲料比PF饲料具有更好的经济效益和更低的环境影响。

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A comparative study of the effects of pelleted and extruded feed on growth, financial revenue and nutrient loading of Nile tilapia (Oreochromis niloticus L.) cage culture in a lacustrine environment

ABSTRACT We compared the benefits of using extruded feed (EF), against pelleted feed (PF) to guide cage culture investments in Great Lakes. Three out of six cages in the same farm had fish that were fed EF and the other half, belonging to a different farm had fish that were fed PF. The diets were similar in crude protein, lipid and energy content. However, the fiber content in PF was 4 times higher than that of EF. The fish fed on EF grew better (438.0 ± 7.4 g) than the fish fed on PF (220.8 ± 2.9 g). The cost of production for EF was about 26% lower than for PF, primarily because of better feed utilization. The load of P and N for PF diet was 59% and 29% higher, respectively, than when EF was used. Therefore, EF feed delivered better economic gains with lower environmental impact than PF feed.

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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.