Evaluation of Fermented Soybean Curd Residues as an Energy Source in Diets for Juvenile Olive Flounder, Paralichthys olivaceus

Abstract

A 10‐wk feeding experiment was conducted to evaluate the potential use of fermented soybean curd residues (FSCR) as an energy source in diets for juvenile olive flounder, Paralichthys olivaceus. Five isonitrogenous and isoenergetic diets were formulated to contain dry soybean curd residues to replace wheat meal (WM) at the levels of 0, 25, 50, 75, and 100% (FSCR0, FSCR25, FSCR50, FSCR75, and FSCR100, respectively). Fish averaging 6.00 ± 0.07 g (mean ± SD) were randomly distributed into 15 aquaria as groups of 15 fish and fed the experimental diets in triplicate at a rate of 4–5% of wet body weight per day twice daily on dry matter basis. At the conclusion of the feeding trial, weight gain (WG) and specific growth rate (SGR) of fish fed diet FSCR25 were significantly higher than those of fish fed diets FSCR50, FSCR75, and FSCR100 (P < 0.05); however, there were no significant differences in WG and SGR among fish fed diets FSCR0 and FSCR25 and among those fed diets FSCR0 and FSCR50. Feed efficiency and protein efficiency ratio of olive flounder fed diet FSCR25 were significantly higher than those of fish fed diets FSCR50, FSCR75, and FSCR100 (P < 0.05); however, there were no significant differences in these parameters among fish fed diets FSCR0 and FSCR25 and among those fed diets FSCR0, FSCR50, FSCR75, and FSCR100. Hematological characteristics, condition factor, hepatosomatic index, and survival rate of fish fed FSCR0 were not significantly different from those of fish fed the other diets. These results indicated that FSCR could replace up to 50% WM as an energy source in juvenile olive flounder diets based on ANOVA test.

Effect of dietary inclusion of various plant ingredients as an alternative for Sargassum thunbergii on growth and body composition of juvenile sea cucumber Apostichopus japonicus

“…2005). Several studies have revealed that the fermented plant ingredients at a proper incorporation level might be good nutrient sources for fish (Mukhopadhyay & Ray 1999; Sun et al. 2007) and shrimp (Molina‐Poveda & Morales 2004).…”

“…2007). Sun et al. (2007) revealed that increased levels of wheat meal substitution (more than 50%) by FSB curd residues resulted in low growth performance of flounder and Molina‐Poveda & Morales (2004) reported that a replacement more than 33% of dietary protein sources by a combination of barley‐based fermented grains and wheat gluten adversely affect feed intake of shrimp.…”

Distillers Dried Grain from Makgeolli By-product Is Useful as a Dietary Ingredient for Growth of Juvenile Sea Cucumber Apostichopus japonicus

“…Including fermented soybean meal using Aspergillus oryzae improved protein and carbohydrate digestibility in a yellowtail diet (Shimeno et al, 1993). Many studies have reported that fermented plant ingredients at the proper level may be good nutrient sources for fish (Sun et al, 2007;Rahman et al, 2013) and shrimp (Molina-Poveda and Morales, 2004).…”

Distillers dried grain can be used as a feed ingredient for the growth of freshwater snail (Semisulcospira coreana) and abalone (Haliotis discus hannai)

“…Saha and Ray () reported that the fermentation can improve the nutritive value of Eichhornia leaf meal. Several studies manifested that the fermented plant ingredients might be good nutrient sources for fish (Sun, Kim, Okorie, Lee, Devnath, Yoo, Bai & Jo ) and shrimp (Molina‐Poveda & Morales ).…”