最近最经典中文MV字幕,国产成人无码精品久久二区三,在线一区二区三区,四川少妇BBB搡BBB爽爽爽视频

news

Analysis on the unreasonable distribution of pig farm

Pig farming is not as simple as you think. In addition to a large amount of capital investment, strict and meticulous management, practical epidemic prevention measures, qualified feed materials and appropriate pig breeding equipment are also needed. At the same time, the layout and construction of pig farms determine the growth of pigs. However, some people make the layout of pig farms very unreasonable, resulting in little income. The following is the layout of pig farms Analyze the unreasonable situation of the Bureau.
1. Many pig farms are surrounded by walls, where there is space, where pig houses are built, and different pig houses are mixed together. In fact, the layout of pig farms has a great impact on disease control and production management. Therefore, the design and construction should be fully considered. According to the different production mode, it can be divided into three stages in a single place or two places.
① Two place feeding: two place feeding refers to the number of breeding pig in one place, and the number of nursery and fattening pig house in another relatively far away place. In principle, the delivery room, nursery and fattening pig house should be all in and all out. Breeding house, pregnancy house, conservation house, growth house and fattening house shall be arranged from the upwind and downwind direction. I suggest that we should minimize the size of pig houses and keep small groups in order to reduce the incidence rate of pigs. It is advisable to raise no more than 500 pigs in a nursery or fattening pig house.
② The number of various pig houses is not matched: the most important principle is to design the production room and the nursery according to the production rhythm; the calculation of the pig house specification and quantity, the two columns of the production room correspond to the conservation column, and the conservation column corresponds to the fattening column one by one; first design the production indicators and production process, and then design the pig house and the pig house.
③ Not designed to be all in, all out: modern pig industry is becoming more and more complex, one of the reasons is that there is no strict location; or pig breeding areas and conservation are in one location, while fattening pigs are in another. The advantage of this feeding mode is that it is easy to control diseases.
The disadvantage is that the management is relatively difficult and the transportation cost is increased.
2. Three stage feeding: three stage feeding refers to raising pigs in three areas in one environment, namely, breeding area, nursery area and fattening area.
① Enclosure: the enclosure shall be set up in the pig farm to clarify the scope of the pig farm, prevent employees from entering and leaving the pig farm at will, prevent miscellaneous personnel from entering and leaving the pig farm at will, and prevent wild animals from entering the pig farm. The living area and production area shall be fenced or separated by various houses to prevent employees from entering and leaving the production area at will. There can only be one channel in the production area and living area, and a disinfection pool should be set up. Employees can only enter and exit through the disinfection pool from this channel to prevent diseases from entering the pig farm.
② Layout: according to the planned scale of the pig farm, determine all in and all out at all stages. Although some pig farms are designed to be all in and all out, it is difficult to do so in real breeding because the pig houses are not matched. The whole pig house can increase production performance by 21% - 25% and the whole pig farm can increase production performance by 30%

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

无码午夜人妻一区二区不卡视频 | 无码人妻精品一区二区蜜桃天美 | 国产又黄又爽的免费视频 | 欧美成人精品一区二区视频 | 人妻无码啪啪AAAAA | 91精品人妻一区二区三区蜜桃臀 | 人妻天天爽三区麻豆AV | 波多野结衣在线无码播放红桃视频 | 亚洲乱码国产乱码精品 | 91Porn无码国产 | 欧美精品人妻一区二区三区大一片 | 国产一级a毛一级a看91 | 免费AⅤ视频在线观看 | 亚洲在线免费视频 | 麻豆精品视频免费观看 | 成人试看120秒体验区视频 | 亚洲AV成人片色在线观看www | 成人午夜免费视频在线 | 中文字幕无码在线 | 国产免费人做人爱午夜视频 | 91久久人澡人妻人人做人精品 | AA,在线观看视频在线播放 | 18禁黄色免费网站 | 不卡的手机AV免费在线观看 | 无码区免费看一级毛片A片 国产特黄A片AAAA毛片 | 亚洲A片无码一区二区蜜桃 欧美一级婬片AAAA毛片 | 俄罗斯无码一区二区三区 | 黄色一级片在线观看 | 日韩高清无码一区二区 | 国产在线观看免费网站射精 | 免费亚洲黄色电影 | 国产农村妇女BBBBB性爽视频 | 超碰人人妻人人擦 | 丰满熟女乱婬A片六区 | 九九久久在草大里香 | 黄色成人网站免费在线观看 | 国产一区二区三区精品视频 | 成人A片在线观看WWW涩欲满 | 国产一区二区人妻白浆屁股撅起来 | av无码电影在线观看 | 麻豆一区二区99久久久久 |