Nutritional evaluation of fermented Jatropha protein concentrate inLabeo rohitafingerlings

Abstract

Jatroha protein concentrate (JPC) was prepared by iso-electric precipitation method. A 45-day feeding trial was conducted for the nutritional evaluation of JPC and fermented Jatropha protein concentrate (FJPC) in Labeo rohita fingerlings. Seven iso-nitrogenous (340 g kg À1 CP) and iso-energetic (17 MJ kg À1 ) diets such as C (soy protein concentrate ) , T 1 (50 g kg À1 JPC), T 2 (100 g kg À1 JPC), T 3 (200 g kg À1 JPC), T 4 (50 g kg À1 FJPC), T 5 (100 g kg À1 FJPC) and T 6 (200 g kg À1 FJPC) were fed to respective groups. The weight gain % and protein effciency ratio showed a decreasing trend with higher inclusion of JPC whereas these parameters increased gradually on higher inclusion of FJPC. FCR showed the reverse trend. The protease, GOTand GPT activities of FJPC fed groups were significantly higher than their non-fermented counterparts whereas a reverse trend was observed for LDH and MDH enzyme activities in muscle and liver. The survival rate was 100% in all the treatment groups except for T 2 and T 3 . Phorbol esters (PEs) in FJPC was non-detectable. Results suggested that solid state fermentation with Aspergillus niger is an effective method for removal of PEs and FJPC is a promising protein source in aquafeed.

Nutritional evaluation of protein isolate from rubber seed in the diet of Labeo rohita : Effects on growth performance, nutrient utilization, whole body composition and metabolic enzymes activity

“…The variation in their results may be due to the levels of ANFs, nonstarch polysaccharide, and or species differences. Literature have shown that varying level of antimetabolites, indigestible carbohydrates, amino acid imbalances and other complexes may contribute to growth depression often observed when plant protein ingredients are fed at higher inclusion levels to fish, rather than pinpointing one single factor as the primary reason for the adverse effects noticed (Mambrini et al, 1999;Francis and Becker, 2001;Schulz et al, 2007;Slawski et al, 2013;Shamna et al, 2015). However, in the present study, no significant variation was observed in the growth performance of the fish fed RPI in replacement for SPI.…”

“…This effects were evidence in cyanide-exposed rabbits and common carp (Okolie and Osagie, 1999;Sadati et al, 2013). Shamna et al (2015) also observed an increased level activity of LDH enzymes in Labeo rohita fingerlings fed phorbol esters-containing jatropha protein concentrate. Nevertheless, such effects were not seen in the present study where LDH activity in both the muscle and liver were found to decrease with increasing RPI levels, suggesting that there is no shift in aerobic metabolism and the fish were not under hypoxic condition.…”

“…Although, aquaculture production continues to grow at a relatively high rate compared to other animal production sector (SOFIA, 2007), but not immune from ingredients shortage occasioned by the high demand and constraint in fish meal production (Tacon and Metian, 2008;Shamna et al, 2015). Aside from the limited availability, the price of the commonly used ingredients is on the rise due to increased demand in the feed of poultry and livestock as well (Coffey et al, 2016).…”

Evaluation of nutritive value of fermented de-oiled physic nut,Jatropha curcas,seed meal for Nile tilapiaOreochromis niloticusfingerlings

“…Given this, the use of alternative plant protein is a strategy to increase the sustainability of aquaculture by reducing feed costs as well as by reducing the environmental impact (Shamna et al . ). Many studies have been conducted to evaluate the replacement of FM in practical diets for tilapia with cheap, locally available plant protein sources (Floreto et al .…”

Replacement of Soybean Meal with Fermented Jatropha curcas Kernel Meal in the Diet of Labeo rohita Fingerlings: Effect on Hemato‐biochemical and Histopathological Parameters

“…This toxic component (PEs) cannot be detoxified or inactivated by heat treatment even at higher temperatures (Makkar et al ). However, various detoxification approaches, such as methanol‐alkaline extraction (Makkar and Becker ), treatment with organic solvent (Devappa et al ), and solid‐state fermentation using Bacillus cereus (Saha and Ghosh ) and Aspergillus niger (Shamna et al ), have been used with variable success. Therefore, this study was designed to examine the effects of dietary replacement of SBM with fermented Jatropha kernel meal (FJKM) on the hemato‐biochemical and histopathological parameters in Labeo rohita fingerlings.…”