Aspergillus nigerfermented plant protein mix as a potential substitute for fishmeal in the diet ofPenaeus vannamei(Boone, 1931)

Abstract

A 45‐day feeding trial was conducted to evaluate the utilization of fermented plant protein mix (FPPM) as a fishmeal substitute in the diet of Penaeus vannamei. Six isonitrogenous and isolipidic diets were formulated by substituting fishmeal at 0% (control), 50%, 60%, 70%, 80% and 90% (FR‐0, FR‐50, FR‐60, FR‐70, FR‐80 and FR‐90, respectively) using FPPM. Shrimps fed with diets FR‐50, FR‐60 and FR‐70 had no significant difference in weight gain (173.22%–178.07%) with the control group (179.50%). However, the broken‐line regression indicated that 70.8% fishmeal could be substituted by FPPM. The trend of digestibility was reflected in growth performance. Survival had no significant difference among the treatments. Fishmeal substitution had significant (p < .05) variations in protease and amylase activity, but not in lipase. Except lipid, other body composition was not affected due to dietary change. A decrease (p < .05) in haemolymph total protein, cholesterol and triglycerides was observed to increase in fishmeal substitution. A higher fishmeal substitution (FR‐90) had significantly (p < .05) lower total haemocyte count and the reverse was true for phenoloxidase. Results conclude that a combination of fermented ingredients would be more effective rather using alone in shrimp feed, with a great potential in reducing the pressure on fishmeal.

Supplementation of coated and uncoated crystalline amino acid mix in formulating a low‐fishmeal diet for Penaeus monodon (Fabricius, 1798): Effect on growth, digestibility, body composition, haemolymph indices and nitrogen metabolism

“…Plant proteins, particularly oilseed meals/cakes, are the viable alternatives due to their availability and suitability. They have earlier been evaluated individually (Dayal et al, 2011;Rajaram et al, 2012;Xie et al, 2016) and in combination (Bulbul et al, 2013;Dayal et al, 2020;Richard et al, 2011). However, the results are not fully encouraging, which is mainly due to the imbalanced profile of essential amino acids.…”

Bacillus spp. Fermented Plant Protein Mix as a Potential Fishmeal Substitute in the Diet of Penaeus monodon: Emphasis on Nitrogen Metabolism

“…Ltd., Mangalore, Karnataka. 5 Khaja Mohammed Store, Chennai, Tamil Nadu, India. 6 Real Soy Enterprises, Indore, Madhya Pradesh, India.…”

“…The nutrient utilization of various plant proteins and their by-products has been evaluated as a fishmeal substitute, as they are easily available, reasonably priced, and to a certain extent, have a desirable nutrient content [4]. However, their utilization is not picking pace even after including them in combination [5] due to the presence of antinutrients that hinders digestion, absorption, and nutrient utilization.…”

“…have been considered in recent times due to their safety, capability for producing various hydrolyzing enzymes, survival ability and resistance to extreme temperature, pH, and UV radiation [6]. In general, a single microbial species is naturally used for the fermentation process and has been well documented in earlier studies [5,[7][8][9]. Though several microbial species are commercially available for fermentation, the Bacillus spp.…”

A blend of plant proteins as a potential fishmeal substitute in the diet of Asian seabass Lates calcarifer (Bloch-1790): Effect on growth, digestive enzymes and fatty acid composition

“…Major problems associated with plant proteins are deficiencies of certain essential amino acids (methionine, lysine and tryptophan) and higher content of anti-nutrients (Jannathulla et al, 2017a). In order to resolve these issues, researchers used a combination of plant protein sources with varying levels of success (Burr et al, 2012;Dayal et al, 2020). Fish are capable of modulating their digestive enzyme pattern in response to the quality and concentration of dietary nutrients and their sources (Gonzalez-Felix et al, 2010).…”