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

With the improvement of modern productivity, the requirements for products and technology are higher and higher, especially for modern farms. A reasonable and standardized design is very important for the energy efficiency ratio of a modern farm. Let's talk about the key points of modern farm design.
First of all, according to the requirements of production technology, the production area of a large-scale modern pig farm should have the following functions: pig house, reserve house, breeding house, pregnancy house, delivery house, conservation house and fattening house (breeding house).
In addition, artificial insemination needs male pig house, introduction isolation needs introduction isolation house, sick pig isolation needs sick pig isolation house, and breeding pig farm needs testing house.

The process flow is as follows:

According to this process, we can design the field of each pigsty, so that the input and output of land and construction can get the best results.
QINGDAO PUHUI AGRICULTURE AND ANIMAL HUSBANDRY SCIENCE AND TECHNOLOGY CO.,LTD. specializes in designing pig farms and serving more than 5000 sows. It has been praised by customers all the time. It gives customers reasonable planning and design in the early stage and spends the least money to design and build the most scientific and modern pig farms.
If you have any questions about the pig farm, please contact us. The purpose of QINGDAO PUHUI AGRICULTURE AND ANIMAL HUSBANDRY SCIENCE AND TECHNOLOGY CO.,LTD.  is to make the breeding simple, reliable, environmentally friendly and efficient!