The cloud spot, also known as the brown scorpion, is native to North America and was introduced into China in 1984. Cloud spots, tender meat, delicious taste, and rich nutrition are well-known fish that are well received by consumers. At the same time, cloud spot is also a popular cultured species, it has the advantages of complex feeding, strong disease resistance, cold resistance, and easy feeding. In recent years, cloud spots have achieved good results in breeding in Heilongjiang Province.
First, cloud spots? The main biological characteristics
The spot on the back of the body is yellow-brown or dark brown, and its belly is grayish white. The cloud spot lives on the bottom of the water, belongs to the bottom fish and likes cluster activities. The temperature range for cloud spot adaptation is 139°C, and it can naturally overwinter in Heilongjiang Province. The suitable growth water temperature is 20 32 °C. Cloud spot feeding for omnivorous fish. The cloud spot needs mature sexual maturity in Heilongjiang Province. The spawning season is June and July. The spawning water temperature is 20 30°C, and the optimum water temperature is 23 28°C.
Second, cloud spot? pond culture technology
Cloud spot? The period of pond culture in Heilongjiang Province is two years. In the first year, seedling cultivation will be carried out. The size of fingerlings may reach 20 50 g. The second year of adult fish breeding will reach 200 250 g.
1, seed cultivation
Cloud spot? Breeding more ponds to adopt the main method of cultivation.
1 Pond conditions and preparation
The pond area is suitable for 25 acres, the pool depth is more than 1.5 meters, the bottom of the pool is flat, the pond water retention performance is good, no leakage. 10 days before stocking, clear the pond thoroughly with quicklime or bleach, 200,300 kilograms of fermented manure per acre, and 0.8m deep pond water.
2 Seed stocking
At present, the necessary seedlings for cloud spot breeding in our province are mainly purchased from the southern provinces. The purchase time is generally from late May to June. Acre breeding cloud spot per acre, Wuzi 3000 3000 tails, with a stocking flower Bai Bai Wu Bai 800 1000.
3 feed feeding
Using pelleted feeds for domestication and rearing, feeds can be made from squid compound feeds with a crude protein content of about 32%. After the Umbra enters the pond, it can begin domestication. After successful domestication, it can be fed 2 times a day.
4 daily management
Every day, visit the pool, pay attention to observe the fish activity and water quality changes. If there is any abnormality, it should be dealt with promptly. During the entire period of feeding, it is necessary to make up for water and maintain a water depth of 0.8 1.5 meters. Splash lime water to regulate water quality every 15 to 20 days.
2. Adult fish breeding
Cloud spotting adult culture can adopt two methods: pond pond raising and pond main breeding.
1 pond nesting
In the regular fish breeding ponds, cloud spots can be nested. There are 30 and 50 species of cloud spotted fish with a stocking size of 20 25 grams per acre. Without increasing the amount of feed for it, you can increase production and income. At the time of harvesting, it is generally possible to produce 5,10 kilograms per acre and 50,100 yuan per mu.
2 Pond owners
1 pond conditions and preparation
The pond area is suitable for 3 15 acres, the depth of the pool is more than 2 meters, the bottom of the pool is flat, and the pond has good water retention performance and no leakage. Ten days before stocking, clear the pond thoroughly with quicklime or bleach. The manure fermented manure per acre is 150 200 kg. The old pond may not be applied and the pond may be filled with water 0.8 meters deep.
2 Fish stocking
From late April to early May, 800 1200 species of cloud spotted fish are stocked with 20 50 g per acre. In addition, 100 to 120 species of white squid species are stocked per acre with a stocking specification of about 100 grams. Do not go with squid or squid. These two fish will compete with cloud spots.
3 feed feeding
Also used for domestication and feeding with pellet feed, the feed uses a crude protein content of about 30% of squid compound feed, can be fed 2 3 times a day, each feed is fed with most of the fish to eat.
4 daily management
Every day, visit the pool, pay attention to observe the fish activity and water quality changes. If there is any abnormality, it should be dealt with promptly. The fish species will enter the pool for replenishment of water until the water depth reaches 1.5 meters in July, and this depth will be maintained afterwards. In the summer, lime water is splashed every 15 to 20 days to regulate the water quality.
First, cloud spots? The main biological characteristics
The spot on the back of the body is yellow-brown or dark brown, and its belly is grayish white. The cloud spot lives on the bottom of the water, belongs to the bottom fish and likes cluster activities. The temperature range for cloud spot adaptation is 139°C, and it can naturally overwinter in Heilongjiang Province. The suitable growth water temperature is 20 32 °C. Cloud spot feeding for omnivorous fish. The cloud spot needs mature sexual maturity in Heilongjiang Province. The spawning season is June and July. The spawning water temperature is 20 30°C, and the optimum water temperature is 23 28°C.
Second, cloud spot? pond culture technology
Cloud spot? The period of pond culture in Heilongjiang Province is two years. In the first year, seedling cultivation will be carried out. The size of fingerlings may reach 20 50 g. The second year of adult fish breeding will reach 200 250 g.
1, seed cultivation
Cloud spot? Breeding more ponds to adopt the main method of cultivation.
1 Pond conditions and preparation
The pond area is suitable for 25 acres, the pool depth is more than 1.5 meters, the bottom of the pool is flat, the pond water retention performance is good, no leakage. 10 days before stocking, clear the pond thoroughly with quicklime or bleach, 200,300 kilograms of fermented manure per acre, and 0.8m deep pond water.
2 Seed stocking
At present, the necessary seedlings for cloud spot breeding in our province are mainly purchased from the southern provinces. The purchase time is generally from late May to June. Acre breeding cloud spot per acre, Wuzi 3000 3000 tails, with a stocking flower Bai Bai Wu Bai 800 1000.
3 feed feeding
Using pelleted feeds for domestication and rearing, feeds can be made from squid compound feeds with a crude protein content of about 32%. After the Umbra enters the pond, it can begin domestication. After successful domestication, it can be fed 2 times a day.
4 daily management
Every day, visit the pool, pay attention to observe the fish activity and water quality changes. If there is any abnormality, it should be dealt with promptly. During the entire period of feeding, it is necessary to make up for water and maintain a water depth of 0.8 1.5 meters. Splash lime water to regulate water quality every 15 to 20 days.
2. Adult fish breeding
Cloud spotting adult culture can adopt two methods: pond pond raising and pond main breeding.
1 pond nesting
In the regular fish breeding ponds, cloud spots can be nested. There are 30 and 50 species of cloud spotted fish with a stocking size of 20 25 grams per acre. Without increasing the amount of feed for it, you can increase production and income. At the time of harvesting, it is generally possible to produce 5,10 kilograms per acre and 50,100 yuan per mu.
2 Pond owners
1 pond conditions and preparation
The pond area is suitable for 3 15 acres, the depth of the pool is more than 2 meters, the bottom of the pool is flat, and the pond has good water retention performance and no leakage. Ten days before stocking, clear the pond thoroughly with quicklime or bleach. The manure fermented manure per acre is 150 200 kg. The old pond may not be applied and the pond may be filled with water 0.8 meters deep.
2 Fish stocking
From late April to early May, 800 1200 species of cloud spotted fish are stocked with 20 50 g per acre. In addition, 100 to 120 species of white squid species are stocked per acre with a stocking specification of about 100 grams. Do not go with squid or squid. These two fish will compete with cloud spots.
3 feed feeding
Also used for domestication and feeding with pellet feed, the feed uses a crude protein content of about 30% of squid compound feed, can be fed 2 3 times a day, each feed is fed with most of the fish to eat.
4 daily management
Every day, visit the pool, pay attention to observe the fish activity and water quality changes. If there is any abnormality, it should be dealt with promptly. The fish species will enter the pool for replenishment of water until the water depth reaches 1.5 meters in July, and this depth will be maintained afterwards. In the summer, lime water is splashed every 15 to 20 days to regulate the water quality.