WAY OF EARLY LIFETIME DIAGNOSTICS OF SEX OF STURGEON FISH SPECIES AND THEIR HYBRIDS Russian patent published in 2008 - IPC A01K61/00 

FIELD: agriculture.

SUBSTANCE: method includes pre-surgical monitoring of the specific belonging, conditions and the regime of cultivation, size-weight indices, which define the size and stages of development of the gonads, and also the accumulation of fatty deposits, which disguise the sexual glands, a visual estimation of development of the gonads, which is accomplished due to permissive surgical access to them. Access for visual inspection of the development of gonads in individuals 2 - 5 years old with a body weight of 1.0-8.0 kg taking into account data of pre-surgical monitoring ensures a laparotomy. The cut of the abdominal cavity is selected in a range of 2-3 cm and carried out laterally at the level 3-5 abdominal scutes, counting from the anal fin. The cut coincides with the region of the location of the middle part of the sexual glands.

EFFECT: safety of individuals and further purposeful use in corresponding groups of the repair-uterine herds of fish-breeding facilities and enterprises.

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