التفاصيل البيبلوغرافية
| العنوان: |
Utilization of fish waste biomass as a fishmeal alternative in European seabass (Dicentrarchus labrax) diets: effects on immuno-competence and liver and intestinal histomorphology. |
| المؤلفون: |
Wassef, Elham A., Saleh, Norhan E., Abde-Meguid, Nabila E., Abdel-Mohsen, Heba H. |
| المصدر: |
International Aquatic Research; Jun2023, Vol. 15 Issue 2, p45-161, 17p |
| مصطلحات موضوعية: |
FISH waste, EUROPEAN seabass, WASTE recycling, FISH meal, BIOMASS |
| مستخلص: |
The potentiality of using two novel aqua-derived meals from fish waste biomass in either nonfermented (FW) or fermented (FFW) form as dietary partial fishmeal (FM) substitutes for juvenile European seabass, Dicentrarchus labrax, (IBW, 29 g) was investigated. FW meal (40% crude protein, 20% lipids, and 7.5% ash) was fermented using the marine fungus, Beauveria bassiana. The influence of partial substitution of dietary FM using either FW or FFW meal at, 15%, 30% and 45% levels, on fish immunity and liver and intestinal histomorphology was examined to determine the appropriate form and optimal inclusion level of each. Fish were fed a basal control diet and six test diets containing either FW or FFW, each at three FM substitution levels, for 90 days. Results showed that the total serum protein, albumin, globulin, phagocytic activity of leucocyte, respiratory burst, lysozyme activities, and immunoglobulin IgM were all significantly improved in fish consumed the FW diet, at all incorporation levels, relative to the other diets. Intestinal and liver histology were also examined for any morphological alteration. Normal fish liver architecture was recorded in all experimental fish groups, with no signs of inflammation. Inspection of the proximal, mid, and distal intestine via the light and electron microscopy illustrated that seabass fed the FW30 diet had normal gut structure. Meanwhile, administration of the highest dietary FW/FFW level (45%) induced some inflammatory signs in the proximal intestinal mucosa of seabass. These findings suggest that FW meal is a feasible alternative for replacing 30% of FM in the seabass diet without compromising fish immunity and liver / intestinal integrity. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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