The mullet is a general name for squid. Commonly known as black fish, turtles, Lei fish, black sticks and so on. The mullet is a valuable freshwater fish with high economic value, and is known as "treasures in fish." From the nutritional point of view, mullet is a nutritious, meaty, high-end health supplement. The squid grows rapidly, yields high, and economic benefits are good. The actual breeding time can reach 0.5kg or more per end for 6-8 months, the yield can reach 3,000kg per 667m2, and the net profit can be more than 10,000 yuan. The high profit can be obtained. More than 15,000 yuan. Therefore, as long as the conditions allow, you can actively raise mullet. This is a good strategy for the development of aquaculture of special aquatic products and an important and good way for farmers to become rich. Now, how will the special culture techniques for raising squid culture be introduced as follows:
1, fish pond conditions. The size of ponds that cultivate squid exclusively is not limited, but generally 667 to 1334m2 is appropriate for management. The maximum is not more than 2000m2. Water depth 1 ~ 1.5m, the bottom of the pool is best muddy. The water source should be sufficient, and the usual equipment in the pool should be the inlet, the drainage outlet should be complete, and the water quality should be neutral or slightly alkaline. The aquaculture ponds should be completely sterilized, and the clear ponds are generally disinfected 10 to 15 days before they are stocked. Clear pond disinfection should be selected in the sunny, clear dry pond and water clear pond, the commonly used drug is quicklime, such as dry clear pond disinfection, the general use of lime per 667m2 50 ~ 75kg, with clear pond disinfection, General depth 1m per 667m2 with lime 125 ~ 150kg. At the same time, in the pond, about 1/5 of the surface of the water or the water around the pond should be planted with 80-100cm wide water-living lotus in order to block the sunlight during the summer when the water temperature is high, so as to facilitate the summer and hide of the mullet. It can obtain purified water quality, which is favorable for the growth of black mullet.
2, fish stocking. To obtain higher yields for monoculture mullet, fish species must be sufficient. General 667m2 put 6000 or so, if the water quality is good, the depth is more than 1.5m, as long as the management is good, enough feed can put 8000 per 667m2. However, no matter what time it is to be stocked, the specifications of the castrated squid should be consistent. In addition, we should pay attention to the quality of fish species, choose a healthy body, complete scales, lively and normal swimming, no damage as well. In addition, a small amount of fish such as cockroaches, cockroaches, cockroaches, etc. can also be mixed in ponds that raise turtles exclusively. This can control the water quality of ponds, increase production, and increase economic efficiency. However, it is advisable that individual fish in polyculture be more than 1 times larger than that of black mullet, in order to avoid being eaten by mullet fish, such as the 6cm species of mullet, and the length of the mixed family fish should be 13cm or more.
3. Feeding of feed
3.1 Fresh fish: The black mullet is a carnivorous fish, so the feed is still dominated by small trash fish. Freshwater and small seafish can be used. In the early stage of cultivation, due to the small size of the black mullet, the wild fish that are larger in size should be chopped and fed to improve palatability. The daily feeding amount is generally about 5% of the total fish body weight, and is adjusted depending on the food intake. The general feed ratio is about 1:4.
3.2, artificial compound feed: According to the nutritional needs of mullet, its crude protein content should reach more than 40%. As the artificial diet of black mullet, fresh fish, fish meal, silkworm cocoon, corn flour, rice bran, bone meal, yeast powder, etc. are commonly used, together with a small amount of vitamins, appropriate amounts of trace elements and antibiotics are mixed into agglomerates or made into pellet feeds. Hey.
3.3. Feeding should be done with "four settings", ie timing, positioning, qualitative and quantitative. Daily feeding 2 to 3 times, that is, once in the morning and once in the afternoon, when the food intake is high, it can be fed once more in the evening. When feeding, the small smelts are placed on the food table suspended in the pool water to allow the fish to feed so as to reduce the loss of feed, and it is also convenient to observe the feeding conditions of the mullet. Or use the method of eating while eating until you stop eating.
4, daily management
4.1, patrol pool: Every morning and evening to patrol the pool once, pay attention to carefully observe the fish feeding and activities, pay attention to changes in water quality, to find problems to be dealt with in a timely manner.
4.2. Change the water: Pay attention to constantly adding new water to keep the water clear, especially during the summer hot season, in order to promote the normal growth of black mullet.
4.3. Anti-escape: In the initial stage of stocking of black mullet, the species are still small, and the jumping ability is poor. When the body length exceeds 10cm, the jumping ability gradually increases, especially in thunderstorm weather, when changing water or early morning, the jump is very active. It is easy to escape the fish and other situations. Therefore, the height of the pond from the water surface should generally be greater than 50cm to prevent the mullet from escaping.
4.4. Dividing into stocks: Feeding 1 to 2 months in the early period of feeding should promptly use the net to pick up the squid that grows particularly fast and has a large individual. In order to avoid individual large squid can eat small individual fry, so that the size of the same fish pond culture specifications as much as possible.
4.5 Disease Prevention: Although the disease resistance of mullet is strong and rarely occurs, after high-density culture, if it does not pay attention to improving the breeding technology and management level, it is also prone to diseases, mainly bleeding, and the symptoms are: fish The food intake was significantly reduced, and the diseased fish showed massive or spotted bleeding. If not treated, the diseased fish will continue to die within 3 to 5 days. The treatment was carried out by a combination of internal and external use. Oral administration of Yuxuekang No. II or Yufuning 50g per 50kg was used. The use of fish and shrimp enemy fungicide 250g/667m2 or strong chlorine fine 200 yuan/667m2, Quantang spill, once a day, for 3 days and 1 course of treatment, the effect is good, usually in the pond should be regularly with quicklime, etc. to Quanchiposa Poison, do it mainly.
4.6, fishing: mullet is a bottom fish, usually raised to 0.5kg or more per tail, to reach the product specifications, the method can be used dry ponds to catch, the commercial fish caught on the market.
1, fish pond conditions. The size of ponds that cultivate squid exclusively is not limited, but generally 667 to 1334m2 is appropriate for management. The maximum is not more than 2000m2. Water depth 1 ~ 1.5m, the bottom of the pool is best muddy. The water source should be sufficient, and the usual equipment in the pool should be the inlet, the drainage outlet should be complete, and the water quality should be neutral or slightly alkaline. The aquaculture ponds should be completely sterilized, and the clear ponds are generally disinfected 10 to 15 days before they are stocked. Clear pond disinfection should be selected in the sunny, clear dry pond and water clear pond, the commonly used drug is quicklime, such as dry clear pond disinfection, the general use of lime per 667m2 50 ~ 75kg, with clear pond disinfection, General depth 1m per 667m2 with lime 125 ~ 150kg. At the same time, in the pond, about 1/5 of the surface of the water or the water around the pond should be planted with 80-100cm wide water-living lotus in order to block the sunlight during the summer when the water temperature is high, so as to facilitate the summer and hide of the mullet. It can obtain purified water quality, which is favorable for the growth of black mullet.
2, fish stocking. To obtain higher yields for monoculture mullet, fish species must be sufficient. General 667m2 put 6000 or so, if the water quality is good, the depth is more than 1.5m, as long as the management is good, enough feed can put 8000 per 667m2. However, no matter what time it is to be stocked, the specifications of the castrated squid should be consistent. In addition, we should pay attention to the quality of fish species, choose a healthy body, complete scales, lively and normal swimming, no damage as well. In addition, a small amount of fish such as cockroaches, cockroaches, cockroaches, etc. can also be mixed in ponds that raise turtles exclusively. This can control the water quality of ponds, increase production, and increase economic efficiency. However, it is advisable that individual fish in polyculture be more than 1 times larger than that of black mullet, in order to avoid being eaten by mullet fish, such as the 6cm species of mullet, and the length of the mixed family fish should be 13cm or more.
3. Feeding of feed
3.1 Fresh fish: The black mullet is a carnivorous fish, so the feed is still dominated by small trash fish. Freshwater and small seafish can be used. In the early stage of cultivation, due to the small size of the black mullet, the wild fish that are larger in size should be chopped and fed to improve palatability. The daily feeding amount is generally about 5% of the total fish body weight, and is adjusted depending on the food intake. The general feed ratio is about 1:4.
3.2, artificial compound feed: According to the nutritional needs of mullet, its crude protein content should reach more than 40%. As the artificial diet of black mullet, fresh fish, fish meal, silkworm cocoon, corn flour, rice bran, bone meal, yeast powder, etc. are commonly used, together with a small amount of vitamins, appropriate amounts of trace elements and antibiotics are mixed into agglomerates or made into pellet feeds. Hey.
3.3. Feeding should be done with "four settings", ie timing, positioning, qualitative and quantitative. Daily feeding 2 to 3 times, that is, once in the morning and once in the afternoon, when the food intake is high, it can be fed once more in the evening. When feeding, the small smelts are placed on the food table suspended in the pool water to allow the fish to feed so as to reduce the loss of feed, and it is also convenient to observe the feeding conditions of the mullet. Or use the method of eating while eating until you stop eating.
4, daily management
4.1, patrol pool: Every morning and evening to patrol the pool once, pay attention to carefully observe the fish feeding and activities, pay attention to changes in water quality, to find problems to be dealt with in a timely manner.
4.2. Change the water: Pay attention to constantly adding new water to keep the water clear, especially during the summer hot season, in order to promote the normal growth of black mullet.
4.3. Anti-escape: In the initial stage of stocking of black mullet, the species are still small, and the jumping ability is poor. When the body length exceeds 10cm, the jumping ability gradually increases, especially in thunderstorm weather, when changing water or early morning, the jump is very active. It is easy to escape the fish and other situations. Therefore, the height of the pond from the water surface should generally be greater than 50cm to prevent the mullet from escaping.
4.4. Dividing into stocks: Feeding 1 to 2 months in the early period of feeding should promptly use the net to pick up the squid that grows particularly fast and has a large individual. In order to avoid individual large squid can eat small individual fry, so that the size of the same fish pond culture specifications as much as possible.
4.5 Disease Prevention: Although the disease resistance of mullet is strong and rarely occurs, after high-density culture, if it does not pay attention to improving the breeding technology and management level, it is also prone to diseases, mainly bleeding, and the symptoms are: fish The food intake was significantly reduced, and the diseased fish showed massive or spotted bleeding. If not treated, the diseased fish will continue to die within 3 to 5 days. The treatment was carried out by a combination of internal and external use. Oral administration of Yuxuekang No. II or Yufuning 50g per 50kg was used. The use of fish and shrimp enemy fungicide 250g/667m2 or strong chlorine fine 200 yuan/667m2, Quantang spill, once a day, for 3 days and 1 course of treatment, the effect is good, usually in the pond should be regularly with quicklime, etc. to Quanchiposa Poison, do it mainly.
4.6, fishing: mullet is a bottom fish, usually raised to 0.5kg or more per tail, to reach the product specifications, the method can be used dry ponds to catch, the commercial fish caught on the market.
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