Madreseh, S., Ghaisari, H.R., Hosseinzadeh, S. (2020). Effect of dietary Lactobacillus fermentum and lactulose on fatty acid profile and heavy metal residues in rainbow trout (Oncorhynchus mykiss). *Food Hygiene*, 10(37), 29-43. 10.30495/jfh.2020.671509