FOSHAN PHARMA CO., LTD. , https://www.fspharmaapi.com
Umbilicaria breeding to six off
At present, Wuyi has become an important breed of freshwater fish species throughout the country. Now the main components of the Wuyi aquaculture technology are introduced as follows: I. Pond selection The size of the pond in which Wuyi is cultivated is not limited, but generally it is 1-2 mu. It is appropriate. The water depth is 1.5-2 meters. The bottom of the pool is preferably wet and the sludge does not exceed 20 cm. Adequate water and water quality, and the entrance and exit must be protected from escape. The pool must be over 50 cm above the water surface. Bamboo fences or fish nets should be installed around the pool. Around the pond, 80-100 cm wide water peanuts and water lettuce are planted in order to block the sunlight when the water temperature is high in the summer, so as to facilitate the summer and lurking of the Wuhuan. Second, fingerlings should be kept for 15-20 days prior to stocking, and should be disinfected with fresh lime and clear ponds. The amount of quicklime used should be 100-150 kg per mu. The fish stocking time is generally in March and April. When fish species are stocked, they are washed with 3%-5% saline for 10-15 minutes, or with potassium permanganate at a concentration of 5-10 g/m3. 5 minutes. The fish species to be put in were of neat specifications, robust physique, complete scales, lively and playful, and no damage. Fish species should be more than 10 cm (preferably 16-20 cm) every year. Small-sized fish species should be cultivated in cages for a period of time. After several times of rearing, they can be released at about 20 cm. Into the fish pond. The stocking density should be determined according to the conditions of feed and water quality, generally 1000-1500 mu, if the water quality is good, the depth is more than 1.5 meters, the management is good, the feed is sufficient, and 2000 can be put in each mu. And can be raised 200-300 large-scale species of white fish, fish can also raise dozens of tilapia broodstock, with its hatching fry for Umbilical food. There are two types of bait feeds in Guanyu Clam: one is fresh live bait, such as wild fish, shrimp, fly maggot, slaughterhouse waste; the other is artificial feed, and the formula is: minced The miscellaneous fish shrimp 70%, bean powder 20%, yeast powder 5%, the remaining multi-dimensional mineral salts, growth promoters and antibiotics. Feeding to achieve "four set", that is time: feeding 2-3 times a day, that is, 9-10 am, 3-4 pm feeding each time, when the food is in full bloom, can be fed once in the evening; Positioning: The bait should be placed on a fixed food table to reduce the loss of bait to facilitate the observation of the feeding conditions of the black locust. Qualitative: The bait is fresh and not destructive, and it is fed with fresh small-sized fish, removing stingrays, hedgehogs, etc. Thorn fish; Quantitative: According to the growth, food and weather conditions of the Chinese caterpillar, determine the daily feeding amount, and the daily feeding amount is controlled at 5%-8% of the weight of the Chinese tallow, which is based on the majority of the fish. Umbilicus in the 25-30 °C when the food intake is strong, in July, August and September for its food growth peak should increase the amount of feeding, but on the same day to finish the degree. The gradual reduction in food intake in October should continue until November. Artificially fed food should be used as early as possible. During the period, oysters or fish, shrimp and meat can be served on the food table. The table is suspended at 20 centimeters below the surface of the water to attract the fish to feed. After the fish are accustomed to feeding on the table, they are gradually added to the food. Do not feed live bait during the tame process so as not to affect the tame effect. Fourth, water quality regulation in the high-density culture conditions, often produce hydrogen sulfide, methane and other substances to make the water worse, is not conducive to the growth and development of black dragonfly, but also induce fish disease. Especially in the hot season, the body of water is prone to dark-smelling, which requires frequent replacement of water bodies. In the early stage of adult fish farming, it can be changed 1/3 a week, 15 days a big change, about 4/5. With the growth of fish, the high temperature season, generally a small change in 3 days, 7-10 days a big change. In winter and hot season, the water level should be raised to keep the water temperature relatively stable. Each month, 15 kg of lime per acre is poured on the whole pond of hydrated pulp. The pH value of the pool water is kept neutral or slightly alkaline. The transparency is 30-35 cm, and the water is live and cool. Fifth, the level of feeding off the Ukrainian due to habits of self-inflicted, so the specifications are a key to successful breeding. At the stage of fish breeding, as far as possible, net fishing is avoided, and the catch rate of the net is very low, and it is easy to injure the fish body. The fish species is cultivated in cages in the stage of 10-20cm in Datang, so that it is easy to raise the stock. Net cage material can be made of polyethylene woven mesh stitches, 6 meters 10 meters 3 meters, 8 meters 4 meters 3 meters and other different specifications. The setting of the cage can be flexibly controlled according to the size of the pond, water level, water quality, and the number of fish species in the pond. After two to three divisions, they can be up to 20 centimeters in length and then placed in a pond, and then raised to adult fish. Stop eating the day before each adoption to prevent food dripping and affect the survival rate at the time of separation. Sixth, fish disease prevention Check the fish ponds sooner or later, check the growth of the fish, clean up the bait in time, and regularly disinfect the food table, and use 1 g/m3 of bleach to splash it. Intestinal disease, every 2kg of fish is fed with 2-10 grams of sulfadimethoxine daily, fed for 3-6 days, and hydromycosis is made of 400g of salt and baking soda per cubic meter of water. The pool is spattered and spilled once every 2 days; Parasitic disease, per cubic meter of water, with 90% crystal trichlorfon 0.3-0.5 g Quanchiposa; Hemorrhagic septicemia, the disease is raised in the scorpion pool, use "fast-paced" bait Feeding, 200 grams per 10 kilograms of feed, once a day, even for 5 days for a course of treatment. In addition, Chinese black wolfberry is more sensitive to ferrous sulfate and should be used when applying pesticides. (Source: Scientific fish farming)