Key measures to improve the hatching rate of turtle eggs

1. Parent tortoise selection

Parent turtles should choose individuals over 5 years old, who are strong, disease-free, active, and have strong limbs.

two。 Male and female ratio

Generally, 2-3 ∶-1 is suitable for male and female. If the proportion of male turtles is too small, it is disadvantageous to the normal fertilization of female turtles.

3. Egg collection time

Generally, it is appropriate to collect eggs within 10-30 hours after spawning, and if conditions permit, it is better to collect eggs within 3-5 days after spawning. Generally, eggs should be collected in the afternoon so as not to interfere with laying eggs during the day. The eggs with normal fertilization have a white spot on the outside, the edges are clear and smooth, and the eggs are bright and pink in color. There is no white spot on the eggshell, the color is basically the same as the unfertilized egg, the white spot on the shell is irregular white spot, it is dysplastic eggs, can not be hatched into the box.

4. Breeding ground

Larger turtles, such as crocodile turtles, each occupy at least 2 to 3 square meters of pool area to facilitate the breeding season to chase, play and mate. Small turtles, such as turtles, can be stocked with 2 to 3 eggs per square meter in a pool to strive for more than 96% of fertilized eggs.

5. Hatching method

Wooden boxes or river sand can be used to hatch. Cunninghamia lanceolata is the best wood for incubator, followed by pine, not poplar or willow. The performance of river sand aeration and water retention is good. Turtle eggs can be arranged on 3cm thick sand and then covered with 2cm / 3cm thick sand. Pay attention to the use of sea sand, because the sea sand contains too much salt, it will make the embryo die of salt.

Turtle eggs ready to hatch should be sterilized before hatching. The sand can be disinfected with 5000 times potassium permanganate solution, dried and loaded into an incubator to kill harmful pathogens. The humidity of the incubator can be controlled at 80% to 86%. The suitable incubation temperature is 3033 ℃.