Water-saving marine fish seedling culture method

Abstract

The invention discloses a water-saving marine fish seedling culture method. The method comprises the following steps of: (1) selecting parent fishes; (2) intensively culturing the parent fishes; (3) taking eggs, fertilizing the parent fishes and breeding the fertilized eggs; (4) arranging a pond; (5), feeding; and (6) growing the seedlings. In the invention, a scheme which combines the preventionand the adjustment of Bdellovibrio nectophores and the environment regulation is adopted; Bdellovibrio nectophore liquid with a concentration of 10-107pfu / mL is added into the seedling growing pond, and meanwhile, the feed is socked for 15-30min in the Bdellovibrio nectophore liquid with a concentration of 10-107pfu / mL; thus, the average seedling survival percent is not less than 50%, the albino rate is reduced to 4.1%, and the aberration rate is reduced to 2.3%; in addition, the pathogenic or potential pathogenic bacteria in the water can be lysed to improve the water quality so that water can be changed after 40 days; therefore, the cost is saved, and the economic benefit is greatly improved. The water-saving method for growing seedlings of marine fishes is a new green and low-carbon pollution-free seedling growing method.

Description

technical field [0001] The invention belongs to the technical field of seawater fish seedling raising, and in particular relates to a new method for raising turbot seedling raising rate and immunity, promoting rapid growth of turbot, improving water quality, saving water and energy, green and low-carbon, and pollution-free seawater fish seedling raising . Background technique [0002] Turbot (Scophthalmus maximus) is a rare and valuable economic fish originating in Europe, which belongs to sea bottom carnivorous flatfish. Europe has reached the level of industrialized breeding. It has a docile personality, rarely bites each other, adapts to life in low water temperature, grows rapidly, easily accepts compound feed, and is easy to intensively breed. In 1999, artificial seedlings were successfully raised. At present, a breeding climax has been formed in Shandong, Hebei, and Liaoning along the Bohai Sea. There is a large demand for artificial seedlings. At present, the surviva...

AI Technical Summary

Problems solved by technology

[0003] Turbot is very vulnerable at the larvae stage, and the seedlings have serious quality problems: albinism rate, deformity rate, metamorphosis rate are extremely high, and diseases occur frequently

[0008] So far, there is no international research report on the use of Bdellovibrio swimmers in the development of turbot larvae

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