| Titles |
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English :
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Evaluation of whole crayfish meal (Procambrus Clarkii) as partial or complete replacement of fish meal protein in polyculture commercial diets
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Arabic :
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تقييم مسحوق استاكوزا المياة العذبة كبديل جزئى او كلى لبروتين مسحوق السمك لعلائق الاسماك التجارية في نظام الاستزراع المختلط
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| Abstract |
This study was designed to determine the effect of partial or complete replacing of fish meal protein (0, 25, 50, 75, and 100% ) with whole crayfish meal (WCFM). Fingerlings of Nile tilapia (Oreochromis niloticus) Common carp (Cyprins carpio ) and mullet (Mugil cephalus) with in average initial live weight 2, 1 and 0.8g respectively. The fish were fed at a level of 3% of body weight twice a day (at 8 a.m and 2 p.m). A total number of about 8000 fish fingerlings were reared (65% of Nile tilapia, 25% of commen carp and 10% of mullet) in earthen pond. Fishes were distributed into 5 experimental treatments, each in three replicates.
The experimental diets were formulated to contain (30.56% cp) and (3339.89 DE kcal/kg) and the experimental period continued for five months (152days).
Chemical analysis showed relatively high cp (32.12% ) and Ash (24.28%) in whole cryfish meat (WCFM) but the EE was low (1.60%). Water quality measurements were found to be the normal ranges suitable for the experimental fishes. The best feed conversion was noticed in groups fed diet containing 100% fish meal (control), while the worst value was noticed in diet containing the whole crayfish meal (100%).
The crayfish meal can successfully replace up to 75% of fish meal protein in the diets of the poly culture (Nile tilapia, mullet and common carp).
The results indicated that the use of 50% Crayfish meal was more economical and realize net revenue than the other replacement percentages, due to decreasing the diet costs.
Keywords: whole crayfish meal, tioapia, common carp and mullet, feeding performance.
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| Publication year |
2003
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| Pages |
315-330
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| Availability location |
معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى - الجيزة
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| Availability number |
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| Organization Name |
Animal Production Research Institute (APRI)
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| serial title |
Egyptian Journal Nutrition and Feed
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| Author(s) from ARC |
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| Agris Categories |
Fisheries production
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AGROVOC
TERMS |
Carp.
Fish meal.
Mullets.
Performance testing.
Polyculture (aquaculture).
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| Proposed Agrovoc |
whole crayfish meal;Procambrus Clarkii;tioapia;
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| Publication Type |
Journal
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