Simple method for hatching male larva of mauremys mutica

Abstract

The invention discloses a simple method for hatching the male larva of mauremys mutica, belonging to the technical field of control on the male gender of terrapin animals. The method comprises the following steps: 1) during the mating season of the mauremys mutica, putting the long diameter of fertilized ovum into a hatching matrix, enabling embryos to be upward, and covering a hatching matrix with same humidify on the fertilized ovum; 2) horizontally arranging a hatching box on a bracket in an artificial cellar, controlling the temperature and the air humidity in the cellar, and hatching for 55-65 days in the cellar; and 3) when 23 circles of developmental duration for hatching the ovum of the mauremys mutica into the embryos in the cellar finishes, horizontally moving the hatching box into a common hatching room to continue to hatch, and obtaining the larva of the mauremys mutica by hatching for 10-20 days. According to the method, the gender of the newly born larva of the mauremys mutica can be controlled effectively, the ovum hatching rate is increased, and the larva quality is enhanced.

Description

technical field [0001] The invention belongs to the technical field of male sex control of turtles, and in particular relates to a simple method for hatching male larvae of yellow-throated aquatic turtles. Background technique [0002] Yellow-throated aquatic turtle ( Clemmys mutica ) is a freshwater turtle widely distributed in eastern and southern my country. This species has extremely high edible, medicinal and ornamental value, and is one of the important species of aquaculture. The reproductive ability and natural hatching success rate of yellow-throated aquatic turtles are both low. Coupled with human overhunting and the deterioration of the natural environment, its wild natural resources are almost exhausted. Although the artificial breeding of this species has developed rapidly, farmers still mainly adopt the method of hatching turtle eggs at natural or higher temperature and raising at high temperature in the hatching process. Higher incubation temperature can sh...

AI Technical Summary

Problems solved by technology

Higher incubation temperature can shorten the hatching time of eggs, but it often leads to higher egg hatching rate and larval deformity rate, and tends to hatch female individuals with slow growth; hatching turtle eggs at lower temperature can hatch male-biased hatchlings, but Too low temperature may lead to slow or even stagnation of embryonic development in the egg, prolonged incubation time and low hatching rate