After the shrimps are stocked, part of the artificial diet should be added daily, and fish and pig blood can be fed in the culture ditch. The young shrimp can be fed rice bran, bean cake powder, rapeseed cake flour, fish meal, clams, cocoon and so on. Every morning and evening, they are fed 1 time, and the daily feeding amount is 3%~4% of the shrimp body weight. When the water temperature is above 18°C ​​and the spawning season comes, more animal feeds such as minced fish, shrimp, river eel, cocoon and crushed snails should be fed to the spawning broodstock. Its eggs require nutrition. When the juvenile grows to 0.2 centimeters, it is fed with soy milk every day. When the body length reaches 0.5 centimeters, some fish meal may be fed properly; when the juvenile grows to 1 centimeter, feeds such as wheat bran, rice bran, and bean cake can be fed. Each day, the amount of 10,000 tails is 150-200 grams, which is divided into 3 to 4 feedings. When the larvae reach 2 cm in length, they can cast meat, quail, and snail meat to promote the growth of the shrimps. The compound feeds are fed daily. The amount can be controlled from 3% to 4% of the body weight of the shrimp, and it must be adjusted in time according to changes in water quality, weather conditions, and shrimp feeding and activities.
It is very important for water quality management to raise green shrimp in paddy fields. The quality of water in rice fields is the key to the success or failure of raising fresh shrimp. Among the various factors affecting water quality, we must pay particular attention to the thinness of water. We must prevent the water from becoming over-absorbed and cause oxygen deficiency, and we must also prevent the food from becoming too skinny when the food is too thin. Green prawns are very sensitive to pesticides and have poor drug resistance. It is best not to spray pesticides on rice fields on rainy days. The day before the application, the shrimp should be introduced into aquaculture engineering facilities, and the circulation with the field water should be cut off. The circulation should be resumed 5 to 7 days after application.
During the high-temperature period, new water should be refilled regularly. Water should be injected every 5 days or so. Each time the water is replaced by 1/5 to 1/3 of the field water, it can adjust the water temperature, increase the dissolved oxygen in the water, and promote the rapid development of the shrimp. Grow.
In general, the field should be patrolled regularly, and attention should be paid to the prevention of predators. Water snakes, otters, frogs and jaundice should be promptly removed. Pay attention to checking the field ridges and anti-escape facilities after heavy rain, and repair them in case of any damage.
Width:250mm*Length:1800m*Thickness:25um
The 3Fagri Silage Wrap has been manufactured by Zibo Maoyang Industry and Trading CO., LTD in China, using advanced multi-layer co-extrusion blown film technology and equipment.
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The 3Fagri silage wrap comes with a 12-month guarantee against UV degradation, features high UV stabilization and provides an airtight and weatherproof shield, when used according to instructions.
The 3Fagri silage wrap is available in Black, Green and White.
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Zibo Maoyang Industry and Trading Co.,ltd , http://www.mysilage.com