October 17, 2024

Interpretive Summary: Effects of fermented soybean meal and supplemental methionine and lysine on growth, digestibility, body composition, and amino acid composition of Beluga (Huso huso)

Interpretive Summary: Effects of fermented soybean meal and supplemental methionine and lysine on growth, digestibility, body composition, and amino acid composition of Beluga (Huso huso)

By: Ali Khodadoust, Majidreza Khoshkholgh, Hamid A Noveirian, Mahmoud Mohseni, Hossein Khara

The growing aquaculture production can greatly affect the aquafeed industry and cause problems, especially in providing fish meal (FM) for diets. Price and production instability in FM can restrict producers’ ability to produce aquafeed. Therefore, it is advised to use plant proteins such as soybean meal (SBM), which has high protein, reasonable price, and relatively balanced amino acids profile. However, it is necessary to emphasize techniques such as fermentation and supplemental amino acids to improve products. The objective of this study was to determine if fermented SBM (FSBM) with supplemental methionine and lysine (ML) could be used as an alternative source for Beluga (Huso huso). Fish meal and fish meal with methionine and lysine (FM and FM + ML) were replaced by the different levels of FSBM and FSBM + ML; Eight diets consisting of 0%, 40%, 60%, and 80% of FSBM and FSBM + ML (FM, FSBM40, FSBM60, FSBM80, FM + ML, FSBM40 + ML, FSBM60 + ML and FSBM80 + ML) were fed to 240 Beluga for 56 d. Growth, digestibility, body composition, and amino acid composition were analyzed in Beluga. When fermented SBM was replaced in diets, Beluga acclimated up to 60% but no more. Fermentation appears to be a solution to supply amino acids, and methionine and lysine were over-supplemented.

Read the full article in the Journal of Animal Science.