In recent years, some turtle turtle breeding companies have experienced a large number of deaths due to the winter turtle’s death due to deterioration of water quality in the overwintering pool or overwintering pool. This has caused considerable economic losses to the company. For this reason, talk about your own experience on the safe wintering of turtle turtles and just for reference.
The turtles that need to be wintered need to adopt the following technical measures in addition to the raising of their full-fat levels before wintering.
First, increase or decrease the water level
Generally, the northeast, north, northwest, central and east China regions that are easy to be frozen should raise the water level of the overwintering Dianchi Lake in a timely manner. The high water level should be used to maintain the water temperature and prevent the ice-sealing effect. Therefore, it is required that the Northeast be moved indoors as low as possible for winter. The water level in the winter turtle ponds in North China and Northwest China should be raised to more than 2 meters. The temperature of the winter turtle turtle pond in East China and Central China should be raised to more than 1.5 meters. Conversely, if the water level is too high in South China, which is not easily icy, it will affect the convective velocity of the upper and lower bodies of water, so it should be reduced to less than 1 meter. In this way, under the action of wind and waves, it can accelerate the circulation and convection of the water, and thus play a role in water and oxygen increase.
Second, Kaifeng Kaifeng
In winter, in some places, because the shallow water in the pool is low and the weather is cold, ice turtles have been frozen in the wintering pool. The method is to start smashing the ice from the top of the pool. If the pool is small, less ice should be removed. If the pool is large in ice, it may be preceded by an area of ​​1/2 of the top pool, and then around the pool, and then the wind and waves can blow the crushed ice down to the bottom of the pile. In short, the entire turtle pond must keep 1/2 of the surface of Mingshui in order to facilitate other measures to divert water and increase oxygen.
Third, timely change of water
Due to the low water temperature in the winter, the transparency of the water body is more than 40 cm, and the amount of phytoplankton that carries out photosynthesis and oxygenation in the water body is very small. Therefore, it is very easy to cause oxygen deficiency in the pool water, especially in continuous cloudy and rainy days. Therefore, the water should be changed in time, changing the amount of water for the original pool of water 1/2--2/3. The number of water changes can be changed every 10-15 days depending on weather conditions. Severe cases should be changed every 3-5 days.
Fourth, appropriate fertilization
In areas that are not easy to freeze, fertilization can be used to fertilize the water to increase the amount of phytoplankton that bioaerobicizes in water. The method is: using a ratio of urea and phosphate fertilizer in a ratio of 1; 1 with 10 g of water per cubic meter of water. Fertilizer should be selected in the sunny morning. If it does not work once, after 5 days, use the same amount and use it again. It is best to make the water of the water a light green color with a transparency of less than 30 cm.
In addition, where conditions permit, turtle ponds should be sterilized once a year.
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