Document Type

Article

Publication Version

Version of Record

Publication Date

2012

Departmental Paper Identifier

NRM-65

Keywords

rainbow trout, fermented soybean meal, PepSoyGen, Oncorhynchus mykiss, diet, alternative proteins

Abstract

The inclusion of PepSoyGen (PSG), a commercially-available fermented soybean meal product, was evaluated with juvenile rainbow trout, Oncorhynchus mykiss in an initial 70-day feeding trial, with a supplemental trial involving a subset of the experimental diets continuing for an additional 40 d. Six diets containing 0%, 10%, 20%, 30%, 40%, or 50% PSG, with the PSG directly replacing fish meal, were used in the first trial. There were no significant differences in weight gain or feed conversion ratio between the fish meal-based control diet and diets containing up to 30% PSG. However, weight gain was significantly reduced and feed conversion ratio significantly increased with the 40% and 50% PSG diets. No health assessment differences were observed in fish receiving any of the diets, and no evidence of gross gut inflammation was evident. There were no significant differences in weight gain or feed conversion ratio among the four dietary treatments ranging from 0% to 30% PSG which were fed for an additional 40 d after the initial 70-d trial (110 days total). Based on these results, juvenile rainbow trout diets can contain up to 30% PSG without any loss of rearing performance, thereby replacing at least 60% of the fish meal.

Publication Title

Open Journal of Animal Sciences

Volume

2

Issue

4

First Page

234

Last Page

243

Pages

10

Format

application/pdf

DOI of Published Version

10.4236/ojas.2012.24033

Publisher

Scientific Research

Rights

Copyright © 2012 SciRes. Posted with permission.

Creative Commons License

Creative Commons Attribution 3.0 License
This work is licensed under a Creative Commons Attribution 3.0 License.

Comments

This work was published in Open Journal of Animal Sciences (2012) 2(2): 69–77.

Download

Share

COinS