Domestication method suitable for lateolabras janopicus in north central area

Abstract

The invention relates to the technical field of aquaculture, in particular to a domestication method suitable for lateolabras janopicus in north central area. The domestication method comprises the following steps of firstly, performing opening domestication and feed changing domestication on lateolabras janopicus fries through a domestication pond in a greenhouse, wherein the greenhouse is a light-proof shed, lighting equipment is arranged above a feeding area of the domestication pond, the lighting equipment is turned on before feeding and then is turned off after feeding. Through comparisonof a light-transmitting shed a light-proof shed, a lamp is hung above the pond of the light-proof shed, small-sized fish fries have high phototaxis, feed domestication is facilitated, the survival rate of domestication is up to 70% or above, and adult fish can be driven to appear on the market in advance.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a taming method suitable for perch in the central and northern regions. Background technique [0002] California perch, also known as largemouth bass, belongs to Perciformes, Perciformes, Sunfish family, and Black Perch, and is a freshwater carnivorous fish. Native to the Mississippi River system in North America, it was introduced from abroad by Taiwan, China in the late 1970s, and was successfully artificially propagated in 1983, and was introduced to Guangdong Province from Taiwan, China in the same year. Because of its strong adaptability, fast growth, short breeding cycle, easy to catch, etc., coupled with delicious and tender meat, no intermuscular spines, etc., it is favored by farmers and consumers. It is called the "fifth family fish" in my country. . [0003] Under natural conditions, California perch likes to inhabit in still water with cool water quality or in cl...

AI Technical Summary

Problems solved by technology

At present, California sea bass has set off a nationwide aquaculture boom. Compared with the south, the central and northern regions need to overcome the huge difference in temperature. The effective time for breeding sea bass throughout the year is relatively short, and the overall real breeding time does not exceed 6 months. Aquaculture practitioners mainly breed old-mouthed fish (every year fish), which greatly increases production costs and increases the risk of storing large fish in ponds. In order to obtain greater economic benefits, many farmers spend a lot of money when releasing seedlings in spring. The price is to buy large-size fish from Guangdong, so as to catch up with the new mouth fish on the market (the fish of the current year) and greatly increase the cost of seedlings. Therefore, the local perch is cultivated with large-size fish early, and the fish can reach the market size in the same year. Promotion is imperative, which requires supporting large-scale fish species to be cultivated before the breeding season in the coming year