Black fish set white pheasant technology

I. Tongkou clearing and disinfection

The black-fish cultured Baihuantang mouth area is suitable for 6-8 mu. The area is too small and the water quality is easily deteriorated. In the summer, the main high-temperature section is easy to induce diseases, the area is too large, the production investment is high, and the management is inconvenient. The fish ponds are 2 meters deep, and they leave no or less silt on the bottom of the pond. Weeds should be cleared of weeds in the Western Zhou Dynasty, and ponds in ponds should be reinforced to prevent seepage and water leakage. Thoroughly clear the pond with lime every 20 days before stocking, and use 100-150 kg per mu. After 10 days, use bleaching powder (30% of available chlorine content) to clean the pond once again. Use 5-7 kg per mu and enter it after one week. Water fish species.

Second, fish species launch

1, black fish species blackfish species stocking time should be in early October, into the pond after the fish can be restored to constitution, and improve the survival rate of overwintering, fish can be fed at the back to restore constitution, and improve the survival rate of overwintering, fish can be selected every other year In March-April stocking. Before the next pool must be strictly disinfected and prevented, generally 3% - 5% salt water soaked for 10 - 15 minutes after stocking into the pool. The stocking specifications are best to be locally produced fish species in order to avoid long-distance transport causing fish injuries, affecting the survival rate, and avoiding the introduction of pathogenic bacteria from the outside.

2. The time spent on white bream fish species and other species of flowers and white bream species can be put into the pool before and after the Spring Festival, and it is best to put them into the pool before the Spring Festival. Generally, the main cultivating blackfish pond has 200-250 tails per acre, and the white pl , Squid 60-80 tail, flowers, white pheasant specifications in the 6-8 / kg, bream, bream size in the 10-15 / kg, before the fish species under the pool after strict disinfection and stocking into the pool.

Third, feeding and management

1, feeding

We must adhere to the "four rules." The size of a pond can be set to 1-2 food places, and the black fish can be concentrated around the food field. This can create a situation of grab food, increase food intake, and reduce food waste. The type of feed is mainly small freshwater miscellaneous fish, supplemented by small marine miscellaneous fish, and the feeding amount of bait fish in the high season is 6%-8% of fish weight. Wash the fish before feeding, and feed the frozen sea fish. After dissolving, use a 3%-5% solution of chyme to sterilize for 20 minutes. The feeding method is gradually fed and the fish is effective. After saturating, you can stop feeding. Flowers, white fleas, and squid are no longer needed for feeding.

2, patrol pond

It is mainly to observe the fish's feeding, activities, onset trends, and environmental changes twice a day, morning and evening. Regularly remove the residual baits, remove the excess aquatic weeds in the pond, prevent fish escape, and have signs of floating head to start the aerator in time.

3, water quality management

Hot season. Black fish have large food intake, large metabolism, water quality is easy to produce black and odor, resulting in water body malignancy, is not conducive to the growth and development of blackfish, so the high temperature season generally 3 days a small change, 7 days a big change, where the conditions can be micro Water aquaculture, aquaculture water level to maintain about 2 meters, other time to see the change in water quality situation r to change the water, generally change the water every week 1/3, 10-15 days big change once, boring to watch the hot weather to pay special attention to timely change or Add new water.