Intensive breeding method of siniperca chuatsi by using formulated feed

Abstract

The invention discloses an intensive breeding method of siniperca chuatsi by using formulated feed. The method comprises the following steps: building a breeding water tank in a pond, wherein the water tank is divided into a breeding area and a dirt collection area; arranging a water pushing machine on one end of the water tank, so that the water body in the water tank flows; arranging oxygen increasing rods (disks) at two sides of the inner wall of the breeding water tank; freely breeding domesticated siniperca chuatsi fries, wherein the domesticated siniperca chuatsi fries are temporarily bred in a net cage for 4-5 days before being placed into the water tank; carrying out feeding with the formulated feed, wherein the formulated feed contains crude protein of more than or equal to 46-48%, crude fat of 5-7%, calcium of 2.5-3.5%, phosphorus of 1.5-1.8%, crude ash of less than or equal to 17%, crude fibers of less than or equal to 1.5%, and water of less than or equal to 10%; and collecting and processing breeding tail water. Siniperca chuatsi freely bred by adopting the method provided by the invention for 10-12 months can reach 0.35-0.40 kg or above. The method provided by the invention effectively solves the pollution problem of breeding tail water, and provides a green, high-efficient and brand new breeding method for siniperca chuatsi breeding in China.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and relates to a method for intensively cultivating mandarin fish with compound feed. Background technique [0002] The culture of mandarin fish in my country began in the 1930s, but it was not until the 1980s that artificial breeding of mandarin fish was carried out and large-scale farming was carried out. In 1992, the output was about 3,500 tons. In 2016, mandarin mandarin ducks were cultivated in most provinces of my country, among which Guangdong, Jiangsu, Anhui, Jiangxi, Hubei, Hunan and Zhejiang were the main breeding areas, with an output of 305,000 tons. It has become one of the important aquaculture species in my country . [0003] Mandarin fish is a typical carnivorous fish. It feeds on live fish and shrimps in natural waters. Since the early 1990s in my country, there have been many research reports on raising mandarin fish with compound feed. However, due to large-scale Due to tec...

AI Technical Summary

Problems solved by technology

[0004] This breeding method has the following three problems: First, the live bait should be specially matched for breeding, and the breeding cost is relatively large

In the culture of mandarin fish, it is necessary to specially match the mandarin fish live bait culture pond with a ratio of about 4:1 in each culture stage to meet the demand of mandarin fish for different specifications of live bait in the growth and development stage, and the culture cost is relatively large; The degree of intensive farming is not high and the efficiency is low

Traditional mandarin fish culture ponds have poor water fluidity, difficult to control the water quality, and are prone to hypoxia. In addition, in addition to cultured mandarin fish and unpreyed forage fish in the culture ponds, it is difficult to increase the degree of intensification of culture. Generally, the stocking density of mandarin fish species is about 3-4 fish / ㎡, and the breeding efficiency is low; thirdly, the breeding excrement and tail water are not easy to collect and treat, which is not conducive to the improvement of the breeding ecological environment

In view of these problems in the traditional mandarin fish culture method, the development of the culture of mandarin fish, a rare aquatic species in my country, has been restricted.