Effect of Feed Protein:Lipid Ratio on Growth Parameters of African Catfish Clarias gariepinus after Fish Meal Substitution in the Diet with Bambaranut Voandzeia subterranea Meal and Soybean Glycine max MealReport as inadecuate


Effect of Feed Protein:Lipid Ratio on Growth Parameters of African Catfish Clarias gariepinus after Fish Meal Substitution in the Diet with Bambaranut Voandzeia subterranea Meal and Soybean Glycine max Meal


Effect of Feed Protein:Lipid Ratio on Growth Parameters of African Catfish Clarias gariepinus after Fish Meal Substitution in the Diet with Bambaranut Voandzeia subterranea Meal and Soybean Glycine max Meal - Download this document for free, or read online. Document in PDF available to download.

1

Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä 40014, Finland

2

Finnish Environment Institute, Helsinki 00251, Finland

3

Natural Resources Institute Finland, Jyväskylä 40500, Finland

4

Presently: Department of Fisheries and Aquatic Resources Management, Michael Okpara University of Agriculture, Umudike, Umuahia Abia State, Nigeria





*

Author to whom correspondence should be addressed.



Academic Editor: Francisco J. Moyano

Abstract Fishmeal FM was substituted with soybean meal Glycine max SBM and bambaranut meal Voandzeia subterranea BNM in 10 experimental African catfish, Clarias gariepinus, diets. Feed formulation was designed using mixture model. The inclusion level of the three protein ingredients varied between 0% and 60%. Remaining 40% comprised of basal ingredients kept constant for all 10 feeds. African catfish of average initial weight 35.2 ± 0.9 g were fed with one of the treatment diets for 28 days. The protein:lipid ratios of the diets range 1.5–3.4:1 were used in evaluating the feed utilization and growth of the fish. We found that catfish performances were mainly depending on ingredients and not the ratio itself. The protein:lipid ratios in the diets made of plant ingredients were high but SGR was low. Specific growth rate SGR increased with the increase of feed FM content, being ca. 5% day−1 with 60% FM diet but ca. 2% day−1 at both 60% BNM and 60% SBM diets. SGR was similar 3.5% day−1 with diets of 30% BNM or SBM inclusion with 30% FM. Feed conversion ratio increased from below 0.6 of the 60% FM diet up to 1.5 60% SBM and 1.7 60% BNM. Protein efficiency ratio decreased linearly with increasing FM substitution, but protein productive value PPV was similar for catfish fed 60% FM diet and its 50% substitution with BNM or SBM. These results suggest that protein:lipid ratio cannot be used in assessing nutritional performance if the source of feed ingredient vary widely. However, these results suggest that BNM can partly substitute FM and completely replace SBM in the diets of African catfish. View Full-Text

Keywords: fishmeal substitution; plant proteins; bambaranut; soybeans; mixture designs fishmeal substitution; plant proteins; bambaranut; soybeans; mixture designs





Author: Uchechukwu D. Enyidi 1,4,* , Juhani Pirhonen 1, Juhani Kettunen 2 and Jouni Vielma 3

Source: http://mdpi.com/



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