Coupled with the corruption of a large number of metabolic wastes and residual bait at high temperature, it not only consumes oxygen in the air continuously, but also produces some harmful gases, especially in the case of insufficient dissolved oxygen in the pool, and the greenhouse is full of serious stench. Therefore, it is necessary to install an air replacement device in the greenhouse and change the indoor air regularly.
Some turtle farms use all-dark greenhouses to overwinter young turtles, and the effect of raising turtles is very good. However, if we consider the influence of sunlight on greenhouse heating and the influence of "drying the back" on turtle growth, the effect of using transparent greenhouse should be better.
Extended data:
Growth habit
Turtles like to inhabit rivers, lakes, reservoirs, ponds and other clean waters. In calm days, it often lies on the sunny shore to bask in the sun, uses ultraviolet rays in the sun to kill pathogenic bacteria on the body surface, promotes the healing of the injured body surface, and raises the body temperature and promotes food digestion by drying the back.
Turtle is very timid, sensitive to the sound of the surrounding environment and the movement of objects, and dives into the water at the slightest sign of trouble. Soft-shelled turtles are fierce and aggressive, and bullying among groups is very common. When food is scarce, they will eat the same kind.
During the growing period, soft-shelled turtle mainly breathes through the lungs. When the water temperature is lower than 15℃, the soft-shelled turtle dives into the mud at the bottom of the pond and begins to hibernate, and breathes by the gill tissue in the throat and other auxiliary respiratory organs. The hibernation period of soft-shelled turtle is from mid-October to mid-April in Hangjiahu area 165438+/kloc-0.