Effects of dietary protein levels and natural food on the growth performances and body composition of Nile tllapla (Oreochromis niloticus) reared in earthen ponds [electronic resource].
Language: English Summary language: Arabic Description: p.191-201Other title:- تأثير مستويات بروتين العليقة والغذاء الطبيعى على النمو ومكونات الجسم لاسماك البلطى النيلى المرباة فى الاحواض الترابية [Added title page title]
- Mansoura university journal of agricultural sciences, 2009 v. 34 (1) [electronic resource].
Includes references.
Net fish production and growth performance of Nile tilapia (Oreochromis niloticus) with an average weight 30 ± 0.65g were studied in earthen ponds offered graded dietary protein levels ( 25% 35% and 45%) or natural food (control) for 170 days. Four treatments were applied in this study, each treatment was carried out in two ponds (100 x 40m) as replicates, each of one meter water column. The first three treatment were given a daily feeding rate 3% of fresh fish'body weight and the fourth treatment did not receive any commercial feed but have only natural food produced from fertilizer ponds and served as control
Summary in Arabic.
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