Author(s)

Aaron J. Von Eschen^1,2, Michael L. Brown¹, Kurt Rosentrater³

¹Department of Natural Resource Management, South Dakota State University, Brookings, SD, USA.
²U.S. Fish and Wildlife Service, Valley City National Fish Hatchery, Valley City, ND, USA.
³Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA, USA.

Distillers dried grains with solubles (DDGS) in combination with soy protein concentrate (SPC) with and without an essential amino acid (EAA) complex were assessed as protein alternatives in juvenile Yellow Perch Perca flavescens diets. Diets contained 5% FM, 40% SPC, and 20% or 40% DDGS each with or without EAA. No mortalities or health assessment differences were observed during the trial and all fish readily accepted the experimental diets. Diets supplemented with EAA produced greater weight gain, improved feed conversion, and apparent protein digestibility. Performance was consistently improved for fish fed diets containing amino acid supplements. Based on these results, Yellow Perch are able to utilize high levels of the plant proteins, accompanied with EAAs, as a FM replacer.

Yellow Perch, Fish Nutrition, Distillers Dried Grains with Solubles, Soy Protein Concentrate, Amino Acids

Von Eschen, A. , Brown, M. and Rosentrater, K. (2019) Influence of Amino Acid Supplementations in Juvenile Yellow Perch Fed Plant Protein Combinations. Open Journal of Animal Sciences, 9, 183-195. doi: 10.4236/ojas.2019.92016.