Comparison of extruded and non-extruded soy meals in the diet of genetically improved mudfish Heterobranchus longifilis juveniles

Eyo, A.A. and Falayi, B.A. and Ajayi, T.C. (2003) Comparison of extruded and non-extruded soy meals in the diet of genetically improved mudfish Heterobranchus longifilis juveniles. In: 16th Annual Conference of the Fisheries Society of Nigeria (FISON) , 4-9 November 2001 ,Maiduguri, Nigeria, pp. 312-317.

[img]
Preview
PDF (The document's language is English .) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (775Kb) | Preview

Abstract

Raw soybeans were subjected to three different processing methods viz Parboiling, Toasting and Extrusion with an Intra Pro Extruder. The processed soybean meals were thereafter incorporated at equal levels into the diets of genetically improved mudfish Heterobranchus longifilis juveniles. The fish were fed the experimental diets in triplicate at 5% of their body weight for eight weeks. The growth performance and food utilization indices, namely Mean Weight Gain (MWG), Food Conversion Ratio (FCR), Specific Growth Rate (SGR%) and Protein Efficient Ratio (PER), were monitored bi-weekly. The results show that fish fed the control fishmeal diets were highest in growth performance, which was significantly different (P>0.05) from others. Among the fish fed the test diets, those fed toasted soybean had higher MWG, SGR, FCR and PER than juveniles fed the parboiled soybean diet. The juveniles fed the extruded soybean diet recorded the least growth performance. The implication of these results in diet formulation is discussed

Item Type: Conference or Workshop Item
Title: Comparison of extruded and non-extruded soy meals in the diet of genetically improved mudfish Heterobranchus longifilis juveniles
Personal Creator/Author:
CreatorsEmail
Eyo, A.A.
Falayi, B.A.
Ajayi, T.C.
Page Range: pp. 312-317
Date: 2003
Event Title: 16th Annual Conference of the Fisheries Society of Nigeria (FISON)
Event Type: Conference
Event Location: Maiduguri, Nigeria
Event Dates: 4-9 November 2001
Issuing Agency: Fisheries Society of Nigeria
Uncontrolled Keywords: Nigeria; artificial feeding; diets; feeding experiments; fish culture; food conversion; freshwater fish; growth rate; hybrids; juveniles: Heterobranchus longifilis
Subjects: Biology
Aquaculture
Item ID: 3638
Depositing User: Ms Maria Kalentsits
Date Deposited: 07 Jul 2010 07:10
Last Modified: 29 Sep 2011 17:05
URI: http://aquaticcommons.org/id/eprint/3638

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...