Three elements of turtle hatching

The key to turtle breeding is to grasp the hatching of turtle eggs. No matter which hatching method is used, it is necessary to grasp the three elements of hatching temperature, humidity and air permeability. According to the hatching experiments of three-line closed-shell turtles, crocodile turtles, yellow-throated water turtles, eagle turtles and other turtles in recent years, as long as the temperature, humidity and air permeability reach the best state, the hatching rate of turtle eggs can reach 93%. 98%. 1. Hatching temperature the suitable hatching temperature of turtle eggs should be controlled at 28 ℃ ~ 35 ℃, and the best one is about 30 ℃. Can not be too high or too low, when the temperature is low, you can use artificial heating. The ways are electrothermal heating, solar heating, furnace heating and so on. If the temperature is too high, windows should be opened for ventilation to cool down. In short, once the incubation temperature is set, the temperature difference can not be 3 ℃. Second, the hatching humidity of turtle eggs is generally 7%-8% of the water content of the hatching sand. If the humidity is too high, the turtle eggs are easy to close their breath and die; if the humidity is too low, the moisture of the eggs is easy to evaporate, and the eggs will "dry up" and die. A more practical test method is to squeeze the sand hand into a ball with your hand, and then spread out after giving up, indicating that the humidity is moderate. The sand used for hatching of third-line closed-shell turtles and eagle turtles should be mixed with soil, with a ratio of 6 ∶ 4. In addition, sprayers should be used to spray water once or twice a day during hatching. Third, the hatching and breathable state of turtle eggs means that the thickness of the sand for hatching should be moderate, it is better to choose medium and fine sand from the river and clean it before use. Loess is the best soil for third-line closed shell turtles to hatch. During the incubation period, the sand layer is loosened by hand 10 minutes after sprinkling water every day, which can not only prevent the sand from solidifying and sealing, but also prevent water evaporation, but when you pick the sand layer. Do not vibrate the turtle eggs below so as not to affect the hatching effect. In particular, it is mentioned that the hatching sand of crocodile turtles, yellow-throated water turtles and grass turtles all use medium sand and do not need to be mixed with loess so as not to affect the shell rate.