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标题：Approximate Compositional Values and Tissue Fatty Acid Profiles of Nile Tilapia (Oreochromis niloticus L.) Fed Azolla-Diets in Earthen Ponds
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作者：Youssouf Abou ; Emile Didier Fiogbé ; Yves Beckers 等
期刊名称：Food and Nutrition Sciences
印刷版ISSN：2157-944X
电子版ISSN：2157-9458
出版年度：2011
卷号：2
期号：9
页码：964-973
DOI：10.4236/fns.2011.29131
出版社：Scientific Research Publishing
摘要：The approximate general composition and the fatty acid profile of Nile tilapia fed Azolla-diets in ponds were studied for 90 days. Six isonitrogenous (29.2% CP) and isoenergetic (16.9 kJ·g>sup>-1) diets were formulated to contain 0% (A₀), 10% (A₁₀), 20% (A>sub>20), 30% (A₃₀), 40% (A₄₀) and 50% (A₅₀) of Azolla meal (AM), as partial fish meal (FM) substitutes. Diet A₀ without AM served as a control. Fish growth decreased as AM level exceeded 20% in diets (P 0.05). Crude lipid was significantly lower in fish fed A₅₀ and significant differences were also found in crude ash (P 20, A₃₀ and A₅₀. High level of the fern reduces growth without negatively affecting fatty acid in fish. Fish PUFA, especially the (n - 3) fatty acids, are affected positively, even when fed 50% AM, which is good for the quality of the fish produced in regard to the benefits for the health of consumers.
关键词：Azolla Filiculoides; Fish Meal Replacement; Oreochromis Niloticus; Fatty Acid; Natural Food; Earthen Pond