Pond raises red eyelid grasp four points

Because it has an obvious erythema on the top edge of the eye, it is also known as “red-eye”. It is a genus-shaped maggot, a genus Amaranthidae, a branch of the genus Amaranthidae, and a genus of the red-eyed oystercatcher. It is a rare wild economic fish of the Yangtze River. Its meat is delicate, delicious, and deep. Popular with consumers. Due to the declining natural resources and the large market demand, the sales price has reached 20 yuan/kg, so the prospects for artificial breeding are bright. According to the author's recent breeding experience, the average pond intensive production is 300 kg per 667 square meters and the profit is more than 2,500 yuan. The main technical points should be grasped in the main ponds of red-eyed ponds:
The pool is selected for cultivation in a quiet and convenient transportation pond. The pool shape should be rectangular, with an area of ​​2,000 square meters to 6,000 square meters. The water depth should be about 2 meters. The sediment should be made of clay, followed by loam, and the silt thickness should be about 10 cm. The water source must be sufficient, the water quality should be clean, pollution-free, and the drainage should be convenient. An aerator should be provided.
10 days before stocking, pool water is drained, and every 667 square meters is treated with quick-disinfection of 80kg to 100kg of lime. Five days before stocking, fresh water is filtered and injected, and 200kg of organic fertilizer such as chicken manure is fermented at 667m2. Pool water is yellow-green with a transparency of 30 cm to 40 cm.
The species size of the fish should be large, and the fish should be stocked on a sunny day at the water temperature of 6°C to 10°C from the end of February to the beginning of March. This requires a healthy and healthy body, no injury, no disease, and neat specifications. Generally about 667 square meters of body length is 14 cm to 16 cm, about 800 red-eye bream species, and about 100 to 150 larvae of white bream species with 100 grams of body weight. When stocking, soak the fish with 3% to 5% saline for 5 minutes to 10 minutes.
Feeding red-eyed quail is omnivorous, domesticated and eat artificial compound feed. The feed can be made of floating pellets of general fish, which require a crude protein content of about 30%. According to practice, the feed coefficient is about 1.8. Feeding should adhere to the "four set" method, the implementation of fixed-point feeding. The red-eyed oystercatcher has obvious replenishment and is particularly easy to acclimate. After the fishes are pooled, the feed can be thrown along the edge of the pool, and then gradually put into the food table, generally from 3 days to 5 days can be contracted by the cast to the food table. After food intake is normal, they are fed once a day in the afternoon and afternoon, and the feeding amount is 3% to 5% of the fish's body weight. It is advisable to eat basically 25 minutes after feeding. In addition to feeding buoyant feed every day, it is necessary to feed appropriate duckweed according to the feeding habit of green-eyed fodder, or use bamboo and wood to store several duckweeds for feeding in order to meet the requirements of the red-eyed foal. Demand, promote its growth, save feed costs and increase economic efficiency.
During the management of the entire cultivation period, attention should be paid to the frequent replacement of new water, and the transparency of the pool water should be controlled at about 30 cm to keep the water fresh and lively. From April, new water is gradually added to increase the pond water level, and the water depth reaches about 2 meters in the hot season. From April to May, every 10 days to 15 days, 1 injection of water, each injection depth of 5 cm to 10 cm; After the high temperature period in June, change the water every 7 days to 10 days, each time change the pool water 10 cm to 15 cm. In the main growing season, the aerator is activated from 1 pm to 3 pm daily, and it is usually found that the fish floating head must be turned on for oxygenation in time. Every 20 cubic meters of water per cubic meter of water use quicklime 20 grams of water Quanchiposa, every second half of each cubic meter of water applied photosynthetic bacteria 1 g ~ 2 grams of water Quanchiposa to regulate water quality. Adhere to the morning and evening patrol ponds, observe the weather, water quality, fish feeding, activities, etc., remove any residual bait and dirt in the water, maintain food hygiene and a good water environment, and strengthen fish disease prevention and control. Redeye fish disease is similar to conventional fish and can prevent bacterial diseases. It can be sprayed once a month with conventional disinfectants from May to September. It can be used to prevent parasites. Quanchiposa. Prior to the listing of adult fish, the corresponding withdrawal period should be followed to protect the quality of the listed fish.

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