Plecoglossus altivelis artificial reproduction method

Abstract

The invention discloses a smelt artificial propagation method. From the early June, the fodder containing more fish meal protein is used for the feeding of female parent fishes. While from the middle of September, the female parent fishes are fed on the fodder containing spirulina powder and aluzyme. After the parent fishes enter the gonad mature period, the better mature female parent fishes are selected and cultivated after the estrualization, and the sexually mature male parent fishes are selected and cultivated after the estrualization. After the cultivated parent fishes reach more than 60 % gonad maturity, the water temperature of a decorporation pool is dropped continuously for 2 days with the decline of 2 degree each day. Afterwards the constant temperature is kept for 4 to 6 days. During the ovulatory period of parent fish, the ovums and the sperms are artificially collected every two days. The dry artificial insemination method is used to obtain a germ cell, and the germ cell is put in a hatchery pond for breeding. With the invention, the smelt sverage absolute fecundity and the fertility rate can be enhanced, and a great number of fry can be obtained in each breeding. The scale of artificial propagation is increased, and the labour intensity of the artificial propagation is reduced. Thus a foundation for the large scale artificial culture of smelt is established.

Description

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AI Technical Summary

Benefits of technology

This patented technology improves upon existing methods used beforehand when trying to grow or reproduce sugar beet (Beta vulgaris). By incorporating spirulin powders and yeasts flaks mixed at different stages along the growth cycle, we create an improved method called Bismuth Protocols®. It allows us to control the timing between menstruals while growing new crops like tomatoes instead of traditional ones. Additionally, this technique increases the yield of young seeds due to increased numbers of cells produced through cell division compared to older techniques such as pollinator bolt seedings alone. Overall, these technical improvements enhance the efficiency and effectiveness of artificially reproductive technologies.

Problems solved by technology

This patented technical solution described in this patents involves developing an efficient method called Xanthomonas axolina Yarrow which allows for rapid production of highly pure red sea piglets without losing their ability to produce consistently. Additionally, reducing the quantity of green clay used in rearing young wild blue shrimps reduces costs associated with producing these cropped products.