Odontobutis yaluensis breeding method

Abstract

The invention provides an odontobutis yaluensis breeding method. In the method, gonad developing maturation of parent fish is basically consistent through prenatal breeding; the parent fish group is collected to lay eggs through flowing water stimulation, oxytocic medicament injection and other methods, so that the induced spawning rate and the fertility rate are improved; more than 90 percent of fertilized eggs are incubated in an artificial egg collector under protection of the parent fish by utilizing the characteristic that the parent fish protects the eggs, so that the artificial operation strength is reduced, the environmental requirement is reduced, and the incubation rate is remarkably improved. The whole technical process is applied in a controllable range and is hardly influenced by external environment, the operation is convenient and reliable, scale production is convenient to organize, and the problem of producing the odontobutis yaluensis seedling in scale is well solved. By applying the technology, the induced spawning rate of the odontobutis yaluensis is over 80 percent, the fertility rate is over 80 percent, the hatchability is over 80 percent, and the seedling survival rate is over 70 percent.

Description

Technical field: [0001] The invention belongs to the technical field of fish culture, and in particular relates to an artificial propagation method of the channa japonica. technical background: [0002] Odontobutis yaluensis Wu et Xie (Odontobutis yaluensis Wu et Xie) is also known as "fat head", "blind Gada", "mountain gully", etc., and belongs to the order Perciformes The tiger fish suborder Channaidae is mainly distributed in the upper reaches of the Liaohe River, the Yalu River, and the Dayang River in Liaoning. This fish is a small and medium-sized stream economic fish unique to Liaoning Province. The common individual is 75-150 grams, and the largest individual is more than 500 grams. It has more edible parts, less spines, delicious meat, and high amino acid content. It is popular among people. Love it, the market is in short supply. At present, the market supply of this fish is still dominated by fishing wild resources. In recent years, driven by economic interest...

AI Technical Summary

Problems solved by technology

However, the breeding method of the ducklings is very special. First, the water temperature required for the fish to lay eggs is low, the hatching period is long, and the eggs have high requirements on the environmental conditions; Lay eggs, the eggs hang on the stone wall, the male fish guards the eggs and hatches

Using some conventional breeding techniques, it is impossible to obtain its seedlings on a large scale