The squid (flower pod, puff head) is a kind of food fish that people like to eat and enjoy because of its delicious head and rich nutrition. In recent years, the market price has been relatively strong. Mackerel grows fast, has fewer diseases and is easy to catch. The seedlings can grow to 500 to 1000 grams in the year, and 2 to 2500 grams in winter. How to raise squid needs to understand the following points: 1. Feeding problem of carp. In previous data, the diet of carp was defined as a mild filter-feeding fish dominated by zooplankton, which is generally understood as feeding on zooplankton. This was derived from low-level culture conditions in the past. Nowadays, under high-tech farming conditions, plankton in water bodies is dominated by large species. Carp is a filter-feeding fish, and the choice of food depends on the carp spacing, as long as the individual is larger than the carp spacing of plankton can be filtered by the food, the carp food is mainly individual plankton, less than 50 microns, carp The food is mainly plankton of individuals larger than 50 microns. In planktonic conditions, plankton is mainly composed of individuals such as linear diatoms, dinoflagellates, coelmoides, filamentous cyanobacteria, large rotifers, cladocera, and copepods, which are larger than 50 μm. Object. 2. The proportion of cockroach and squid. The proportion of traditional squid and squid is 3:1, that is, 3 鲢 and 1 鳙, which are 75% and 25% respectively. In this stocking mode, squid can grow normally, but as people's living standards increase, The price of crickets has been getting lower and lower, and the price of crickets has been continuously increasing. This type of pupa-based stocking mode has also become increasingly economical. Therefore, how to increase the stocking ratio and yield of squid has become a technical problem to be solved in aquaculture production. With the application of bio-organic fertilizer in aquaculture, the algae phase in water has undergone a fundamental change correspondingly, and the individuals that can feed on carp are large. Nutrient-rich and easily-digestible species, such as linear diatoms, dinoflagellates, and Cryptophyta, become dominant populations, and zooplankton biomass is also high, providing the food basis for carp to become the main fish, according to many years In production practice, the proportion of carp is less than 20% or greater than 80% in carp rearing structures. The growth rate of carp is faster. When carp rearing ratio is between 20% and 80%, carp is inhibited. The growth rate. Therefore, when squid is used as the main fish, it can only be used with a small amount of fish or not. 3. Fish species specifications. In the past, the stocking standards of lakes and reservoirs were generally 13.2 centimeters large-sized fingerlings, raised for 2 years, long breeding cycle, and the market size was small. Under modern technology conditions, 150 to 500 grams of large-sized fingerlings per end are required. After one year of breeding, it has reached the market specification of over 2000 grams. 4. Problems with stocking patterns. Although traditional lakes, reservoirs, and other large bodies of water use fertilization technology for fish farming, the yield rarely exceeds 100 kilograms per mu and the economic benefits are not high. The main reasons are threefold: First, the size of fish species is small, with 20 tails per kilogram. Large species of fish species, low catch rate, adult fish size is small, generally 1 to 1.5 kg per tail; Second, a seed, once caught, the first half of the fish in the existing water, resulting in a waste of water resources, the second half The density of the fish is too large, the natural food supply is insufficient, and the growth rate is slowed down. Third, the stocking pattern with a ratio of 3:1 puffer fish and squid is unreasonable. In view of the inadequacies of traditional breeding, modern large-scale high-water production and breeding: First, use two species of fish (that is, 0.15 to 1 kilograms per tail); Second, the annual fishing market, that is, from June to July, part of the crop grows to more than 1.5 kilograms. The fish are caught and listed. The remaining fish are caught in the market in winter. Adult fish specifications are 1.5 to 2 kg and 2.5 to 4 kg per tail; Third, the proportion of cod and cod is 1:4, and even full-grown sturgeon is sold at high prices. The benefits are good. The breeding mode of squid has the reservoir to fertilize pure squid; the lake fertilizes the main squid; the small intensive intensive water body baiting and fertilizing main squid; the small intensive intensive water body fertilizes and sets the squid to four kinds. According to different farming modes, the stocking mode is also different. At the end of June this year, I used the full-price extruded material to raise the 2 cm carp seedlings in the squid pond and raise it to 200 grams in more than 40 days. In August, I added another 3 to 4 cm squid seedlings in the middle of the month. . By November, it was basically 500 to 700 grams. Tongkou observes that squid with a tail weight of 100-200 g can effectively eat small-granular extruded material, which effectively promotes the rapid growth of carp.
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