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International Journal of Aquatic Biology، جلد ۹، شماره ۳، صفحات ۱۶۷-۱۷۶
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عنوان انگلیسی Evaluation of the population growth and fatty acid composition of Copepoda, Oithona nana, fed on different diets
چکیده انگلیسی مقاله The marine Copepoda species Oithona nana , is considered as one of the most Copepoda species that successfully mass cultured in marine hatcheries. This study investigated the effects of four feed diets (soybean, yeast, rice bran, and corn starch) on the population growth, growth rate, population composition, fecundity, and fatty acid composition of Copepoda, O. nana . The experiment was continued for 15 days and the copepods were fed on four feed diets with concentration of 1 g/10 6 individual/day. The results found that O. nana fed on corn starch showed the highest significant population growth (9067 Individual/L) and population growth rate (0.735). For nutritional value, copepods fed on rice bran were detected to have the highest content of monounsaturated fatty acid (MUFA), polyunsaturated fatty acids (PUFA), the lowest saturated fatty acids/unsaturated fatty acids ratio (SFA/UFA ratio) and the lowest SFA. More importantly, the rice bran diet was the only diet that showed eicosapentaenoic acid (EPA; C20:5ω3). Moreover, copepods fed on rice bran showed the highest significant female fecundity (8.33 egg/female), copepodite and nauplii percentages (33.27 and 32.65%, respectively). Finally, regarding to the quantity, corn starch is the most suitable diet for mass culturing O. nana, while, regarding to the quality, rice bran enhances the nutritional value and fecundity of the Calanoida Copepoda O. nana.
کلیدواژه‌های انگلیسی مقاله Aquaculture, Corn starch, Fatty acid, Live food, Rice bran.
نویسندگان مقاله | Fawzy Magoz
National Institute of Oceanography and Fisheries (NIOF), Egypt.


| Mohamed Essa
National Institute of Oceanography and Fisheries (NIOF), Egypt.


| Mustafa Matter
Researcher, PhD Invertebrates Aquaculture Lab., Aquaculture Division, National Institute of Oceanography and Fisheries (NIOF), 21556 El-Anfoshy, Quiet Bay, Alexandria, Egypt.


| Mohamed Ashour


نشانی اینترنتی http://ij-aquaticbiology.com/index.php/ijab/article/view/1056
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کد مقاله (doi) 10.22034/ijab.v9i3.1056
زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Articles
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