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Replacement of fishmeal by fermented silkworm pupae meal in diets of largemouth bass (Micropterus salmoides): Effects on growth performance and feed utilization

Replacement of fishmeal by fermented silkworm pupae meal in diets of largemouth bass (Micropterus... The present study was conducted to evaluate the effects of graded replacing fishmeal with fermented silkworm pupae meal (FSPM) on the growth, feed utilization and body index of largemouth bass (Micropterus salmoides). The control diet (FSPM0) was produced using fishmeal as the main protein source and the other five diets were formulated by replacement of 10% (FSPM10), 20% (FSPM20), 30% (FSPM30), 40% (FSPM40) and 50% (FSPM50) fishmeal with FSPM. Six groups containing 540 largemouth bass (36.17 ± 0.71 g) were fed to apparent satiation for 10 weeks. The results indicated the weight gain rate, specific growth rate, feed efficiency rate, protein efficiency rate of fish in FSPM30 group were significantly higher than those in other groups. However, the feed intake of fish in FSPM30 group was significantly lower than those in other groups. No significantly changes for hepatosomatic index of fish were observed in all groups. Polynomial regression analysis indicated that the optimal ratio of replacement fishmeal by FSPM was 27%. In conclusion, FSPM can be included into the diet of largemouth bass replacing 27%–30% of fishmeal without negative effect on growth, feed utilization and body index. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Applied Ichthyology Wiley

Replacement of fishmeal by fermented silkworm pupae meal in diets of largemouth bass (Micropterus salmoides): Effects on growth performance and feed utilization

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References (23)

Publisher
Wiley
Copyright
Copyright © 2022 Wiley‐VCH GmbH
ISSN
0175-8659
eISSN
1439-0426
DOI
10.1111/jai.14358
Publisher site
See Article on Publisher Site

Abstract

The present study was conducted to evaluate the effects of graded replacing fishmeal with fermented silkworm pupae meal (FSPM) on the growth, feed utilization and body index of largemouth bass (Micropterus salmoides). The control diet (FSPM0) was produced using fishmeal as the main protein source and the other five diets were formulated by replacement of 10% (FSPM10), 20% (FSPM20), 30% (FSPM30), 40% (FSPM40) and 50% (FSPM50) fishmeal with FSPM. Six groups containing 540 largemouth bass (36.17 ± 0.71 g) were fed to apparent satiation for 10 weeks. The results indicated the weight gain rate, specific growth rate, feed efficiency rate, protein efficiency rate of fish in FSPM30 group were significantly higher than those in other groups. However, the feed intake of fish in FSPM30 group was significantly lower than those in other groups. No significantly changes for hepatosomatic index of fish were observed in all groups. Polynomial regression analysis indicated that the optimal ratio of replacement fishmeal by FSPM was 27%. In conclusion, FSPM can be included into the diet of largemouth bass replacing 27%–30% of fishmeal without negative effect on growth, feed utilization and body index.

Journal

Journal of Applied Ichthyology – Wiley

Published: Nov 1, 2022

Keywords: fermented silkworm pupae meal; fish meal replacement; growth; Micropterus salmoides

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