Siniperca chuatsi fish how to raise
Siniperca chuatsi fish is commonly known as Gui fish, Guihua fish, etc., for the perch-shaped order of freshwater benthic ferocious fish, the meat is tender and tasty, rich in nutrients. The three main species of Siniperca chuatsi in China are Siniperca chuatsi, Siniperca chuatsi, Siniperca chuatsi and Siniperca chuatsi, with Siniperca chuatsi being the most widely farmed. Guangdong is the main production area of Siniperca chuatsi fry, with the country's earliest batch of Siniperca chuatsi fry hatching every year since March or April, while adult Siniperca chuatsi in Guangdong are sold across the country all year round. It is understood that Mandarin fish farming in Guangdong Province has increased in 2015, but the total number of fry cast nationwide is comparable to that of last year.
Chiniperca chuatsi culture technology
Arowana fish, also known as guppy and mandarin fish, belongs to the lipid family of fishes in taxonomy. The arowana fish is the most expensive fish in the "three flowers and five Luo", even in the past, it is difficult for the general public to afford to consume. Normally, the fish lives alone, which is the nature of almost all carnivorous fish. The arowana has a strong adaptability to the water temperature, and is found in water systems in both the north and south of China. The arowana lives near the bottom of rivers and lakes where the water is clear, and it especially likes to hide behind rocks underwater or among the luxuriant grass. When the water temperature is low in the fall and winter, it dives in the deep water to overwinter, and when the water temperature rises in the spring, it gradually swims to the food-rich grasses near the shore to look for food. The fish is mainly active at night, but during the day, it usually lies in rock crevices, tree roots and pits, and is less active. The Arowana eats very carefully, and after swallowing fish and shrimp, it will spit out the fish spines and shrimp shells, leaving only the meat in its stomach. This unique feature is rare among other carnivorous fish.
1, the choice of breeding sites
Siniperca chuatsi is a typical ferocious carnivorous fish, the living environment requires fresh water, rich in dissolved oxygen. Siniperca chuatsi only eats live bait fish in the absence of domestication. These conditions require the breeding of Siniperca chuatsi, choose the pond conditions to note that drainage is convenient, the depth of water 1.5 ~ 2.5m, the bottom of the pond silt is less than 10 cm, there are oxygenation facilities, the pond area should not be too large, 1000 ~ 3000 square meters is more appropriate. In order to ensure the supply of live bait fish at any time, it is better for the breeding pond to be located in the area where natural wild fish are abundant, such as near rivers, reservoirs, lakes, etc. If you cultivate your own bait fish for feeding, you can feed them in the pond. If you cultivate your own bait fish to feed Siniperca, use the ratio of bait fish ponds to Siniperca breeding ponds of 4:1 to determine the scale of breeding. Of course, whether the traffic is convenient is also the choice of breeding sites in a problem that can not be ignored, because Siniperca breeding process of bait fish transportation is relatively large.
2, the quality of the fry
Through the experience gained from farming Siniperca chuatsi, the quality of Siniperca chuatsi fry varies. Nowadays, due to the lagging behind of the fisheries administration in the management of fry and the degradation of the parent fish used in the breeding of Siniperca chuatsi, the overall quality of Siniperca chuatsi fry is on a downward trend. When purchasing Siniperca chuatsi fry from overseas, it is necessary to examine the scale and technical level of Siniperca chuatsi breeding farms, and try to purchase fry from breeding units which are self-breeding and whose parents are caught in natural waters. To purchase the seed of pure germplasm, strong resistance to disease, fast growth rate.
3, adult fish culture mode
Northern aquaculture areas in general May to June put 4 ~ 5cm Mandarin fish species breeding adult fish. Every 666 square meters of water surface stocking about 1000 tails, most of the mandarin chuats in that year can not reach the commercial fish specifications, in November when the specifications for about 350g. In order to reach the specification of more than 500g of commercial fish, it is necessary to continue breeding in June and July of the following year. However, the price of commercial fish of Siniperca, especially live Siniperca, varies greatly during the year, showing a trend of low at both ends and high in the middle. Selling Siniperca in July and August is generally the highest price in the year. Therefore, the adoption of the inter-annual mode of culturing adult Siniperca chuatsi can be beneficial despite the longer culture time.
Differences between wild Mandarin fish
Wild Mandarin fish has more fish bones, and the cultured ones have fewer, the wild ones are fresher, but there are more parasites, and the cultured ones are not as fresh as the wild ones, but they are safer to consume.