(I) Stocking density
1. The ponds will cultivate carp fingerlings, and mussels will be reared with 8000-12000 tails of summer carp, and the specifications will be 50-60 grams.
2. Adult puffer fish in ponds, 1500-1800 tails per mu, average size 50-60 g/tail, 350-400 g. Of course, it can be increased or decreased according to the pond size, management status, and the size of the fish species.
(B) Matching
1. The proportion of cockroaches should account for about 10% of the cod rearing. The cod rearing time will affect the domestication time of the cod, and the investment will be too early, especially the sturgeon will affect the domestication of cod.
2. It is forbidden to cope with cockroaches, grass carp, etc., take a short time to catch food and eat ferocious fish. In addition to affecting the domestication of eel, it will also affect the annual feeding of carp.
(III) Domestication
1. Add appropriate amount of attractant in the feed to shorten the acclimation time and increase the feeding area and quantity of squid.
2. The squid with the caliber and catching speed equal to that of squid can increase the success rate of domestication and shorten the domestication time.
3, high density, a large number of groups easy to domesticate, on the contrary, a long period of domestication and a low percentage of upswing grab food. When the density is determined, the water level can be reduced, and the relative increase in density, that is, facilitate domestication, increase the water temperature and promote growth.
4. The best time for the squid to be released is after the main squid rises and eats up.
(D) Growth rate
1, species differences. At present, the main squids are dominated by iso-silver carp, carp carp, and engineering carp (Xianyun carp). Practice shows that: engineering cricket grows fastest, followed by iso-silver hydrazine, and finally 澎 Ze 鲫, but 澎 鲫 鲫 鲫 鲫 appearance is better than other varieties, the export is still mainly 澎 澎 鲫 鲫 鲫 鲫.
2, the annual growth rate. In different months, the growth rate of eel is different. In theory, it should be the best growth period in July-August, but it is not. The optimum growth temperature of carp is 25-29°C. In July and August, there is often a high-temperature water temperature exceeding 30°C. This is due to the fact that the water body load is relatively large, so the growth is not as good as in the early September-October.
(five) feed use
50-50g of adult fish farming adopts friendship fish seed material, 100-200g of specification adopts friendship squid special material, 200g uses friendship squid material, so feeding method can maintain the normal shape of squid, and can reduce Feed coefficient to ensure the fish product specifications.