A transdisciplinary approach to the initial validation of a single cell protein as an alternative protein source for use in aquafeeds

Published on: 09/23/2020
Author/s : Michael Tlusty 1,2; Andrew Rhyne 1,2,3,4; Joseph T. Szczebak 4; Bradford Bourque 3; Jennifer L. Bowen 5; Gary Burr 6; Christopher J. Marx 7 and Lawrence Feinberg 7.

INTRODUCTION Aquaculture is the fastest growing source of animal protein for humans. However, as this industry continues to develop, several inherent challenges will arise. Foremost is the need for increased production of suitable and sustainable feeds. Aquaculture has long been criticized for ‘‘using fish protein to make fish protein’’ (Naylor et al., 2009). This ‘&...

remove_red_eye 100 forum 4 bar_chart Statistics share print
Share :
close
September 23, 2020
You start from a really bad formulated control feed. You do everything possible to have low growth, like removing faeces, molts, and starving the shrimp every day for 16 hours.
You achieve 150 % growth in 150 days ? Starting from 4,5 gram, it means your shrimp were 11 gram 5 months later ? I really don't see the point of publishing such results. It is so far away from any results in the shrimp farmining industry.

I am however a strong believer in bacterial proteins, but the nutritional needs of the shrimp should be respected. Replacing fish meal 1 by 1 will never work.
Reply
September 28, 2020
Eric De Muylder This paper is a couple years old since 2017. I totally agree 4.5 gram shrimp is 2 months old for vannamei. Indeed feed formulation is bad, using 38% of soybean and the rest of plants protein. Anyway the result is so poor.
Reply
Paul Roberts Paul Roberts
Biologist
September 28, 2020
The basic equation of aquaculture is: conversion of cheap protein to a higher value protein. No new protein is created and conversion of indigestible plant (for humans) protein to human digestible protein is at best inefficient because plant protein is often encased in cellulose cell walls and/or associated with anti-nutritional factors (notably in soybean).
Reply
Dominique Bureau Dominique Bureau
Associate Professor
October 7, 2020
Paul Roberts Most commercial plant protein ingredients are highly digestible to animals. The insoluble carbohydrate found cell walls have no negative real impacts, except at extremely high levels.
Reply
1
print
(100)
(4)
Engormix reserves the right to delete and/or modify comments. See more details
Post a comment
Create new discussion :
If this discussion does not cover topics of interest or raises new questions, you can create another discussion.
Consult a professional in private:
If you have a specific problem you can perform a consultation privately to a professional in our community.
Louis Landesman
Louis Landesman
Ph.D
  Petersburg, Virginia, United States
Professional Services
Kurt A. Rosentrater Kurt A. Rosentrater
Ames, Iowa, United States
Dave Albin, Ph.D. Dave Albin, Ph.D.
Grimes, Iowa, United States
Royce Samford Royce Samford
Stanfield, Arizona, United States
Katie Mayo Katie Mayo
Grimes, Iowa, United States
 
   | 
Copyright © 1999-2020 Engormix - All Rights Reserved