The food intake of crayfish increases or decreases due to the influence of water temperature. The optimum water temperature for food intake is 25-30℃. When the water temperature is lower than 8℃ or higher than 35℃, the food intake will be obviously reduced or stopped.
Feeding feed for crayfish;
Under the condition of artificial control, crayfish like to eat all kinds of fish feed, such as cakes, bran, bean dregs, silkworm chrysalis, snail meat, mussel meat, fish, etc., but it is best to prepare feed artificially.
1, shrimp feed
The crude protein content of shrimp feed is 37.4%, and the raw materials are Peruvian fish meal 20%, fermented blood meal13%, bean cake 22%, cottonseed cake15%, secondary meal10/%,corn meal 9.6%, bone meal 3%, and bone meal 3%.
2, adult shrimp feed
The crude protein content of adult shrimp feed is 30.1%,and the proportion is Peruvian fish meal 5%, fermented blood meal10%, bean cake 30%, cottonseed cake10%, secondary meal 25%, corn meal10%, bone meal 5% and yeast powder.