色情午夜 码一区二区,江苏少妇性BBB搡BBB爽爽爽,亚洲视频中文字幕,麻豆一级A片久久久乱码

news

Some taboos in layout design of pig farm

The reasonable layout of pig farm is conducive to convenient management and strong practicability. At the same time, good use of pig equipment can improve work efficiency in pig breeding and facilitate the development of pig breeding. However, the design layout of pig farm is taboo. I'd like to lend you some taboos.
1. Avoid improper site selection of pig farm: the pig farm should be located 100 meters away from the highway, far away from livestock product processing plants and villages and other densely populated places. It should be in the downwind direction of residential houses, high dry terrain, windward and sunny, solid soil, strong water permeability, not polluted by pathogens, clean water source and convenient water intake.
2. Avoid incorrect design of pig house location: when building pig house, consider the needs of pig production. The boar house should be built in the direction of the upwind area of the pig farm, which is not only adjacent to the sow house, but also keeps a certain distance from it. Lactating pig house, pregnant pig house, breeding pig house and reserve pig house shall be built at a place slightly close to the gate of the pig farm for convenient transportation.
3. Avoid single building mode: the model of female pig house, male pig house and fat pig house all have their own specific requirements, not all of them can be built in the same way. For example, a nursery is needed in a sow house, but not in other houses. The walls of boar houses need to be stronger and the walls need to be higher. Therefore, if you want to raise any pig, you need to build any pigsty.
4. Avoid excessive density of pig houses: in order to save land and reduce investment, some pig houses are simple and dense, which can not be designed and arranged scientifically and reasonably, resulting in high density of pig raising, environmental pollution and mutual infection among pigs. The distance between pig houses shall be at least 8 meters, and fruit trees and trees can be planted in the middle for shade in summer.
5. Avoid no windows in pigsty: some pigsty have no windows, some have windows, but the windows are too small, too few, and it is not conducive to ventilation and cooling in summer. Generally speaking, there are 4 windows of 60-70cm in the back wall of a pigsty which can raise 10 finishing pigs.
6. Avoid improper specifications of the feeding trough: the feeding trough shall be built according to the wall, the bottom of the trough shall be in the shape of "U", and the size of the feeding trough shall be determined according to the type and quantity of pigs.
7. Avoid no sink: lack of clean water will affect the growth and development of pigs. Therefore, the pigsty must be equipped with a sink or an automatic water dispenser.

  • Contact us
  • Web:http://www.hph3photography.com/en/
  • http://qdph.en.alibaba.com
  • Tel/Whatsapp/Wechat:+8618266221406 +15621127700
  • Email:elsa@sdpuhui.cn nanaliu@sdpuhui.cn
  • 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

亚洲国产精品无码久久久久 | 十八禁网站直接进入 | 免费白丝jk爆 乳在线观看 | 寡妇高潮A片免费播放 | 久久久久国产精品杨思敏 | 成人3D动漫一区二区三区91 | 国产 无码 又爽又刺激网站老师 | 日本 理论 韩国 直播视频 | 欧美成人片在线免费观看 | 无码精品人妻日韩A片下载 免费看AAAAA级少婬片 | 初尝黑人嗷嗷叫中文字幕91精品 | 国产欧美精品啪啪网站 | 亚洲精品无码成人A片在线沈先生 | 天天爽夜夜爽精品一区二区 | 日本久久无码精品一级A片直播 | 精品人妻AV有码一区二区 | 亚洲无码高清福利视频 | 三亚三黄三色AAA毛片 | 亚洲精品久久久久毛片A级牛奶 | 日本一级婬片AAAAAA片麻代 | 午夜视频免费观看 | 2024理论片在线看片免费 | 人妻熟女中出在线4k | 插插插小说欧美小说 | 91丰满熟女嗷嗷叫抽搐 | 91蜜桃传媒一二三区免费 | 熟女毛多熟妇人妻中出 | 91精品国产乱码久久 | 一级婬片A片试看50分钟 | 成年人黄色蜜桃网站 | 美女视频黄是免费视频 | 亚洲精品一区无码A片 | 国产一区二区在线免费观看 | 国产系列精品AV | 国内精品国产成人国产三级 | 免费观看无码污黄视频网站 | 国产精品三级在线观看 | 成人理伦A级A片在线论坛 | 乱码丰满人妻一二三区 | 免费网站在线观看污 | 朋友人妻少妇精品系列 |