Journal of the World Aquaculture Society (Feb 2024)

Effect of replacing a portion of fish meal with unfermented and/or fermented soybean meal on the growth performance, antioxidant and immunity capacity and related gene expression in juvenile Coho Salmon, Oncorhynchus kisutch

  • Qin Zhang,
  • Jiajing Wang,
  • Qiuyue Yang,
  • Lixiao Xu,
  • Jian Xu,
  • Yongqiang Liu,
  • Tong Tong

DOI
https://doi.org/10.1111/jwas.12998
Journal volume & issue
Vol. 55, no. 1
pp. 223 – 239

Abstract

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Abstract This study investigated the effect of replacing a portion of fish meal with unfermented and/or fermented soybean meal in juvenile coho salmon (Oncorhynchus kisutch). Four groups of juveniles (initial weight 110.31 ± 3.12 g) in triplicate were fed for 90 days on four different iso‐nitrogen and iso‐lipid diets. The G0 diet comprised 28% fish meal protein (control group). In the other three diets (G1, G2, and G3), 10% of the fish meal protein was replaced with unfermented and/or fermented soybean meal protein. The main results were: Compared with G0, the WGR, SGR, CF; the contents of GLU, TP, ALB, T‐CHO, and T‐AOC, the activities of AKP, CAT, SOD, GST, GSH‐PX, O2·‐CR, OH·‐CR, and GSH and the expressions of SOD, GSH‐PX, GST, CAT, and Nrf2 genes of juvenile coho salmon in G3 were significantly (p 0.05) of diet on their survival rate (SR). In conclusion, the fermented soybean meal in the juvenile coho salmon diet can replace 10% of the fish meal protein.

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