Growth response, feed conversion rate and cost benefits of hybrid catfish fed maggot meal based diets in outdoor tanks

Sogbesan, A.O. and Ajuonu, N.D. and Madu, C.T. and Omojowo, F.S. and Ugwumba, A.A.A. (2005) Growth response, feed conversion rate and cost benefits of hybrid catfish fed maggot meal based diets in outdoor tanks. In: 19th Annual Conference of the Fisheries Society of Nigeria (FISON) , 29 Nov - 03 Dec 2004 ,Ilorin, Nigeria, pp. 231-237.

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Abstract

The growth response, feed conversion ratio and cost benefits of hybrid catfish, Heterobranchus longifilis x Clarias gariepinus fed five maggot meal based diets were evaluated for 56 days in outdoor concrete tanks. Twenty-five fingerlings of the hybrid fish were stocked in ten outdoor concrete tanks of dimension 1.2mx0.13mx0.18m and code MM sub(1)-MM sub(5) in relation to their diet name. Five isonitrogenous and isocaloric maggot meal based diets namely MM sub(1)-0% maggot meal, MM sub(2)-25% maggot meal, MM sub(3)-50% maggot meal, MM sub(4-)75% maggot meal and MM sub(5-) 100% maggot meal were used for the experiment. The higher the proportion of maggot in the meal, the higher the ether extract and crude fiber. No significance difference P>0.05 exists between ash content of the experimental diets. Diet MM sub(2) had the best growth performance and highest MGR with a significant difference P<0.05 with other diets fed fish. No significance differences P>0.05 exists between the growth parameters for diets MM sub(1), MM sub(3), and MM sub(4). A positive correlation (r=1.0) exists (P<0.05, 0.25) between the growth parameters for the different experimental diets. Highest correlation r super(2)=0.9981 exists P<0.05 between MGR within the treatments. However, there no significant (P>0.05) difference in expenditure but there is between the profit indices and incidence of cost between the trials. MM sub(2) has the best yield cost and net profit. Without any reservation, inclusion of maggot based meal diet is recommended as feed of hybrid catfish to 75% inclusion for growth and profit incidence

Item Type: Conference or Workshop Item
Title: Growth response, feed conversion rate and cost benefits of hybrid catfish fed maggot meal based diets in outdoor tanks
Personal Creator/Author:
CreatorsEmail
Sogbesan, A.O.
Ajuonu, N.D.
Madu, C.T.
Omojowo, F.S.
Ugwumba, A.A.A.
Page Range: pp. 231-237
Date: 2005
Event Title: 19th Annual Conference of the Fisheries Society of Nigeria (FISON)
Event Type: Conference
Event Location: Ilorin, Nigeria
Event Dates: 29 Nov - 03 Dec 2004
Issuing Agency: Fisheries Society of Nigeria
Uncontrolled Keywords: Nigeria; aquaculture economics; costs; diets; feed composition; feed efficiency; fish culture; growth rate; Hybrid culture; Clarias gariepinus; Heterobranchus longifilis
Subjects:
Aquaculture
Biology
Item ID: 4029
Depositing User: Ms Maria Kalentsits
Date Deposited: 23 Aug 2010 08:43
Last Modified: 29 Sep 2011 16:39
URI: http://aquaticcommons.org/id/eprint/4029

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