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

語(yǔ)言
news

Winter keeping warm point of pig raising equipment!!!

1, windproof: Pig terrain to dry, sunny, vent to 1m from the ground, before hanging on the curtain to prevent the pig invasion.
2, pad grass: pig bed plus about 20 cm thick soft hay, moisture absorption, moisture, pay attention to grass frequently change, to avoid mildew.
3, wood chips: circle about 10 cm thick sawdust, can effectively raise the temperature.
4, feeding density: increase about 40 feeding density.
5, add energy feed: increase the amount of corn or add some oil, and at the same time to improve immunity, may be appropriate to add micro-organisms.
6, set heat source: can use hot air stove, warm air machine, coal stove and other equipment to provide heat source, for piglets with piglet electric heating board, infrared lamp and other heating equipment for piglets incubator provide additional heat source.
7, pay attention to ventilation: in the preservation of temperature at the same time, can not ignore ventilation, in the daily ambient temperature is highest, wind speed is not more than 0.2 m/s.
8, pig: keep dry in winter humidity will not only lead to the pig will occur when the temperature drops, get together and even death can cause extrusion bacteria secondary diseases, therefore, the rain and snow prevention; the wash pad material; the fixed point and the pig dung cleaning urination; homes above ground high degree; the use of lime and fly ash water, charcoal as adsorbent.

  • Focus on us
  • Sales service hotline
  • 18660928200
  • Address:The streets of Bei'an Li Ling Industrial Park in Qingdao city of Jimo
  • Address:China Shandong Linyi Town Secondary Village Development Zone

Copyright 2017 Qingdao Puhui Agriculture and Animal Husbandry Science and Technology Co., Ltd. All Rights Reserved