| Titles |
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English :
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Effect of replacing fish meal with fish processing by-products on the growth performance and nutrients utilization of Nile Tilapia (Oreochromis niloticus) fry
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Arabic :
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تأثير استبدال مسحوق الاسماك بمخلفات تصنيع الاسماك على الاداء الانتاجى و الاستفادة من المركبات الغذائية لاصبعيات البلطى النيلى
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| Abstract |
The aim of this study was to investigate the effect of replacing fish meal protein with dried fish processing by-products (DFP) on growth performance, protein and energy utilization of Nile tilapia (Oreochromis niloticus) fry reared in concrete ponds. The experimental diets were formulated to be iso-nitrogenous (33±0.02 % CP) and iso-caloric (4502±20 Kcal GE /Kg). Four experimental diets were formulated. The control group fed a diet containing only fish meal as a source of animal protein while the second, third and fourth groups were fed on the diets where (DFP) replaced fish meal protein at 25, 50 and 100% levels, respectively. The obtained results showed that the best FCR, PER, PPV and EU were recorded by fish group fed diet contained 50% DFP (T) followed in a significant (P<0.05) decreasing order by 25% DFP (T2), 100% DFP (T4) and control (T1) respectively. Furthermore, there were increasing (P>0.05) on protein and fat contents and decreasing on ash content of fish whole body-on dry matter basis with incorporation of DFP instead of FM. The costs to produce one kilogram fish gain is reduced by 10.97; 27.73 and 45.63% for treatment T2; T3 and T4, respectively compared to the control group. Based on results obtained from the present study it could be recommended the use of dried fish processing by-products (DFP) in growing Nile tilapia diets to reduce the price of dietary protein and the price of one Kg gain in weight of Nile tilapia fish without any adverse effects on growth performance and feed utilization parameters.
Keywords: fish meal replacement, fish processing by-products, Nile tilapia, growth performance, feed cost.
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| Publication year |
2010
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| Pages |
389-401
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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 Feeds
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| ISSN |
1110-6360
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| Author(s) from ARC |
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| External authors (outside ARC) |
نبيل فهمى عبد الحكيم
جامعة الازهر
محمد محمد لاشين
جامعة الازهر
الدسوقى السيد العزب
جامعة الازهر
احمد محمد فهيم
جامعة الازهر
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| Agris Categories |
Animal feedingFisheries production
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| Proposed Agrovoc |
feed cost;growth performance;Nile tilapia;fish processing by-product;fish meal replacement;energy utilization;protein utilization;
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| Publication Type |
Journal
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