Asian-Pacific Aquaculture 2019

June 19 - 21, 2019

Chennai Tamil Nadu - India

PARTIAL REPLACEMENT OF FISH MEAL PROTEIN BY CABBAGE LEAVES CONCENTRATE MEAL PROTEIN IN DIETS OF NILE TILAPIA Oreochromis niloticus

Adel K. Soliman*,  Adel M. Hasan , Asmaa. I.Mohamed and Ahmed  G. El-Komy
Animal and Fish Production Department, Agriculture Faculty, Alexandria University, Egypt. solimanakh@yahoo.com
 

In developing countries, there is a severe shortage of animal protein sources which resulted in dramatic increase in their prices. Aquaculture has the potential to overcome  the animal protein shortage by increasing fish production through feeding fish balanced artificial diets. This spurs an effort to define and develop alternative ingredients, in particular, those of vegetable origin which are inexpensive ingredients.  The present study following this effort is conducted, where cabbage leaves  concentrate meal (CLMC) as a replacer for fish meal in Nile tilapia diets.

There were positive effects of producing cabbage leaves concentrate meal in our laboratory from fresh cabbage leaves waste on crude protein and negative effect on crude fiber where the crude protein was increased but crude fiber was decreased.

Seven diets were prepared whereas the first diet is a control diet ( based on fish meal as a sole source of protein).The protein of fish meal was replaced by cabbage leaves concentrate meal at 0.0, 2.5, 5, 7.5,  10, 12.5 and 15% replacement levels (diets 1, 2, 3, 4, 5, 6 and 7 respectively).

            Each diet was fed to duplicate aquaria (10 fish each) with an average weight of 1.6 g.

By the end of experiment (13 weeks).  Nile tilapia fed diets 1, 2, 3, 4 and 5 obtained the best growth performance (body weight and SGR). No significant differences in FCR , PER and ANPU for fish fed the experimental diets. No significant differences in body condition factors and survival rates for fish fed the experimental diets. No significant differences in carcass ash and crude protein but significant differences were recorded in moisture and crude lipids for fish fed the experimental diets. No significant differences in HSI, GI and plasma albumin whereas  significant differences in plasma total protein, plasma globulin and plasma glucose in fish fed the experimental diets. The best profit index (1.65) was obtained by fish fed diet 5 where 10% of fishmeal protein was Replaced by CLCM protein.

From the results of the present investigation it could be concluded that 10% replacement of fish meal protein by cabbage leaves concentrate meal protein could be used safely in tilapia diets.

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