Feed formula and feeding skills for carp culture

Carp are typical omnivorous fish in the natural environment, and they can eat formula feed very well when they are cultured in ponds. The need for feed protein of carp is generally between 28% and 40%, and does not grow well when the protein is too low. Carp have a strong ability to use fat, and the crude fat content in the feed can reach 10%, but when the fat content is high, the amount of vitamin E should be increased accordingly to prevent fat oxidation and cause lean back disease. Carp cannot use crude fiber, and the crude fiber in the feed should be controlled below 10%. In addition, carp like the taste of animal feed, and more animal feed such as fish meal, silkworm pupa, meat and bone meal can be added, but it should be noted that the fat of silkworm pupa and meat and bone meal can not be oxidized.

Feed formula for carp culture

1. Wheat bran 45%, bean cake 40%, barley 10%, fish meal 5%, adding multivitamin, inorganic salt, lysine, methionine, feed coefficient is 2.

2. Wheat bran 45%, fish meal 30%, bean cake 15%, barley 10%, adding multivitamin, inorganic salt, lysine and methionine, the feed coefficient is 2.

3. Bean cake 50%, fish meal 15%, wheat bran 15%, rice bran 15%, multivitamin 1%, inorganic salt, antibiotic leftovers 1%, adhesive 2%, bait coefficient 2.7.

Feeding skills in carp culture

1. Feeding method: generally, artificial baiting is used. Fish species need to rest for 2 days after entering the box to adapt to the new environment of the cage. For example, the fish species cultivated in the cage and overwintering in this reservoir can be fed every other day. At the beginning of feeding, appropriate feed should be given according to different specifications of fish, so as to make the fish eat properly and increase the amount of feed. The key to feeding is the habit of training fish to float and grab food. Generally trained for 7 days and 10 days, the carp can form a conditioned reflex to form the habit of grazing food.

2. Feeding amount: control the feeding amount flexibly according to the weather, water temperature and the feeding situation of fish. When the water temperature rises to 12 ℃, the feeding times are usually 2 times a day, 4 times a day when the water temperature is about 20 ℃, and 5 times a day for carp when the water temperature is above 25 ℃. When the water temperature gradually dropped after September, the number of daily feeding was gradually reduced to 4 or 3 times. Generally speaking, the interval between each feeding is about 3 hours. Under normal circumstances, it is necessary to ensure that the fish is "80% full".

3. Bait frequency: at the beginning of each feeding, it is necessary to cast less and slowly, and when most of the fish float for food, they should cast more and faster, and when most of the fish no longer float for food, they should cast less slowly. To put it simply, it is necessary to master the feeding rhythm of "slow, fast and slow". Until the fish is "80% full".