Influence of dietary acetic acid, protexin (probiotic), and their combination on growth performance, intestinal microbiota, digestive enzymes, immunological parameters, and fatty acids composition in Siberian sturgeon (Acipenser baerii, Brandt, 1869) - Zare, Rasool; Abedian Kenari, Abdolmohammad; Yazdani Sadati, Mohammadali (Aquaculture International, 2021)