Department of Fisheries, Faculty of Animal Science and Fisheries, Sari Agricultural and Natural Resources University, Km 9 Darya Boulevard, P.O. Box: 578, Sari. Iran.
Corresponding author’s e mail: amirkola@yahoo.com
In this study six ingredients were tested for tilapia (Oreochromis niloticus). The ingredients were fishmeal, soybean meal, soybean protein concentrate, wheat gluten, duckweed (Lemna minor), and single cell protein (Brewer’s Yeast/ Lactobacillus). These six feed ingredients were added to the basal diet in a ratio of 15% weight/weight.