人妻3p互换真实经历趁老师睡觉偷偷的脱她内裤|丝袜人妻丝袜美腿呻吟视频|隔壁漂亮寂寞丰满人妻|人妻嫂子|少妇呻吟高潮视频|日本人妻三级在线看|亚洲一区二区三区在线观看欧美|丰满熟妇69p|熟睡中被义子侵犯|欧美日韩人妻在线一区,日本av三级电影,久久久人妻丰满熟妇av蜜臀,漂亮人妻被朋友强了bd影片

According to the change of seasons, there are many problems in pig farm's wetness, that is, pig diarrhea is not only serious, of course, we can make good use of pig breeding equipment, so how to control wetness effectively? We need to do the following six things.
First, increase ventilation. Only when the piggery is ventilated can excess water vapor be discharged to reduce humidity. Measures: 1. Raise the bed to increase the distance between the piglet and the wet ground; 2. Increase the area of the windows to enhance the ventilation capacity of the pigsty; 3. The ventilation effect of the ground is better than that of the windows on the ground, so increasing the windows on the ground can directly blow to the ground to better discharge the water vapor; 4. Install fans to increase the air flow, and the effect of the pigsty is obvious when it is dry.
Second, control the use of water. Water should be controlled in pig houses sensitive to humidity (such as delivery room and pre conservation stage), so as to reduce water accumulation on the ground and effectively control the humidity of pig farms.
Third, spread quicklime on the ground. Spread quicklime on the ground, and make use of the characteristics of quicklime moisture absorption to dry the local air in the pigsty. In addition, quicklime has the function of disinfection.
Fourth, dry the planking. In order to prevent the diarrhea of piglets, it is very effective to bake the wooden mat laid for piglets in the oven, or lay dry cloth or carpet for piglets a few days before birth.
Fifth, lay low-temperature water pipes. Set more water pipes below 20 ℃ in the pigsty, the water vapor in the pigsty will turn into water drops, which will flow down from the water pipes. At the same time, do a good job of drainage, which can also reduce the humidity level in the pigsty.
Sixth, others. The degree of humidity in the pigsty can be controlled by raising the stove and installing the air conditioner in the pigsty.