Fingerling cultivation of pengze crucian carp

After the fry go into the pond, topdressing organic fertilizer or feeding soybean milk according to the fat and thin situation of water quality. According to the growth of fish, the fish can grow into a summer flower of about 3 cm by feeding it with bait such as bean cake powder, fine wheat flour and rice bran for about 20 days.

When summer flowers are cultivated into large fish, it is necessary to feed them with complete compound pellet feed, the protein content is above 30%, the feed coefficient is 1.4- 1.7, and the pellet size is 0.2-2.0 mm, which is smaller in the early stage and larger in the later stage. The daily feeding rate is about 8% of that of fish. After about 15 days of training, you can float around in droves to grab food. The feeding amount should be flexibly controlled according to the water temperature, weather conditions, water quality and fish feeding conditions. Use cages placed on large water surfaces such as reservoirs and lakes for intensive culture. The size of the cage is generally required to be 16-28 square meters and 2-3 meters deep. It is best to choose 3×3 polyethylene net as the cage material. Monoculture is often used, and a certain proportion of silver carp, bighead carp and bighead carp can also be used, but the total output is controlled within 3-5%. Pengze crucian carp with an area of more than 5 cm per square meter should be stocked 50-200 at a time, and the stocking specifications must be neat. Feed semi-floating or sinking particles with bait. The feed formula can refer to carp feed formula, and the protein content is slightly lower than carp feed. The size of bait should be palatable to improve the utilization rate. Generally, after 180-200 days, the average weight of fish can reach more than 200 grams, and the output per square meter can reach 8-25 kilograms.

In addition, small lakes and reservoirs rich in natural bait and water quality are suitable for stocking Pengze crucian carp, and semi-intensive feeding with bait and fertilizer is better. Especially in lakes and reservoirs where fishing can be done in lakes or dry reservoirs in 1-3 years, the effect of raising Pengze crucian carp is more obvious.