Roester breeding technology
In April 1998, the author drew on the experience of the development of the silver crucian carp in the Institute of Aquatic Sciences of the Chinese Academy of Sciences, and conducted a cross-breeding experiment using the American fish as a male parent and the Chinese silver cockroach as the female parent. The first success was achieved. The fish was named as a blusher, also known as a giant blusher. Oh, apply for a patent at the same time. On November 18th, 2000, the technology was granted an invention patent by the State Intellectual Property Office and was listed as a high-tech project by the Wuhan Municipal Bureau of Science and Technology. On October 16, 2001, the relevant experts of the Bureau organized a results appraisal meeting. The study is at the leading domestic level. In 2002, Tongjinan, Xinzhou District, Wuhan City, Hubei Province, nested 8400 tails of 50 grams to 70 grams of winter pieces in 28 acres of ponds. In December of that year, the largest individual was 1,500 grams and the average individual was 750 grams to 1,000 grams.
Artificial breeding has reached a predetermined target, and its appearance is very similar to that of ordinary grasshoppers. Its shape is flat and high. Its body is gray on both sides, its fins are pink, its back is thick and its abdomen is small, its abdomen is silver-white, it has no abdominal ridges, and its head is small. At the end of the mouth, there is no need for jaws. Each side of the dorsal fin has a pair of reflective scales. The caudal fin is shallow and has a beautiful appearance. Rouge carp grows faster, 21% to 34% faster than silver carp, adult meat content of 79.3%, less intermuscular puncture, high edible rate. Its nutritional value is high, crude protein content is 18.22%, crude fat is 2.25%, crude ash is 1.57%. The karyotype analysis showed that about 80% of somatic cell divisions were 2N=168-70. There are less than 5% somatic cell division 2N greater than 200. The fish has a wide temperature range (0°C to 40°C) and can be farmed in various waters. It is a good breeding species suitable for the development of the fishing industry. It is beautiful and beautiful, easy to catch and easy to hook.
At present, the breeding area of ​​rouge has been radiated from Wuhan to 22 provinces, regions and cities across the country, from the south to the south in the south, north to northeast, and west to Xinjiang, with a trial area of ​​4,380 hectares. As the rouge has been recognized by farmers, it will gradually spread to the whole country and become one of the fist industries that will drive the development of fisheries and become a new growth point for the fishing economy.
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