1. feed for bighead fish: to achieve high yield, bighead fish must rely on feed input. It is best to use full-price mixed powder feed, and the crude protein content should be about 30%. At present, the commonly used feed formula is: fish meal 5%, bean cake 28%, vegetable cake 20%, secondary flour 25%, rice bran 12%, bran 6%, additives and mineral salts 2%, soybean lecithin 1% and vegetable oil 1%.

2. Grass carp feed (1) contains rice bran 40%, bran 38%, bean cake10%, fish meal10% and yeast powder 2%, and the feed coefficient of this formula is1.9; If green feed is added, the feed coefficient is 2.2, and the formula is provided by Pearl River Fisheries Research Institute.

(2) Rice straw powder 80%, bean cake10% and rice bran10%. The formula was provided by Changjiang Fisheries Research Institute, and the feed coefficient was 4.9.

(3) Corn meal 70%, fish meal10%, bean cake meal15% and bran 5%, and its additives and binders are: sweet potato12%, salt 0.5%, vitamin complex 2%, calcium hydrogen phosphate 2%, and the feed coefficient is 4.8. The formula is 78-5 pellet feed formula developed by Shandong Fisheries School.

(4) Sweet potato vine powder 80%, bean cake powder15% and bran 5%, and its additives and binders are: sweet potato powder12%, salt 0.5%, multivitamin 2% and dicalcium phosphate 2%, and the feed coefficient is 4.5. The formula is 73-/kloc-developed by Shandong Fisheries School.