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

Management requirements of pig feeding system

With the progress of the times and the continuous development of science and technology, pig breeding equipment has been widely used in pig farms. At the same time, the all in and all out system has emerged. Here is the introduction of the management requirements of the all in and all out system.
1. Sanitation standard: before delivery of different batches of sows, the delivery house and equipment shall be thoroughly cleaned and disinfected. Cleanliness and sterility are the key to the success of delivery management. The pigsty that has not been emptied cannot be cleaned and disinfected thoroughly. Only when every pig house is emptied and thoroughly cleaned and disinfected can the full in and full out system be effective. The traditional continuous feeding system is impossible to do so, otherwise it will interfere with production.
2. Environmental stability: the all in and all out system makes it easy for producers to provide a stable environment for each batch of pigs of the same age. If the environmental conditions of one or more delivery houses are most suitable for newborn piglets, the environmental conditions of the other one or more delivery houses will be suitable for larger suckling piglets. Traditional feeding system, environmental conditions can not meet the needs of pigs of different ages.
3. Reduce the spread of disease: the all in and all out system enables producers to avoid the mixing of pigs of different ages. When pigs of different ages are fed separately, the chance of cross infection and exposure to pathogens will be reduced. The main reason is that there are different pathogens in different pig groups, and the whole in and out system will reduce the chance of pig groups exposed to pathogens.
Through cooperation with Zhengda Group and other large pig farm groups, Pratt & Whitney has accumulated a lot of practical experience, and its products have also withstood the test of the market. If there is a need for farmers and friends, please call us!
(wechat search puhuiyangzhu gives you the most comprehensive design and service!)

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

91成人做爰A片无遮挡直播 | 国产精品99无码一区二 | 91丨PORN丨人妻偷人 | 无码人妻一区二区三区蜜臀免费 | 午夜无码人妻一区二区三区 | AV无码在线播放 | 无套大战杨幂30分钟 | 亚洲精品久久久久毛片A级绿茶 | 国产成人AV一区二区三区 | 91麻豆精品国产9久久久 | 一区二区三区四区五区六区七区 | 国产伦国产伦老熟300部 | 亚洲精品国产精品国自产 | 一本大道东京热无码一区二区三区新 | 欧美人一级婬片a免费播放 AV在线免费观看最新网址 | 四川操BBB操BBB | 中国一级特黄毛片 | 蜜乳av国精产品一二三产区 | 国产真实91东北熟妇HDXXX | 91丨牛牛丨国产人妻 | 亚洲无码高清一区 | 国产互换人妻HD借种 | 国产一级a毛一级a免费看视频 | 91丨国产丨白浆秘 洗澡漫画涙 | 波多野结衣av一区二区蜜桃观看 | 亚洲一区二区三区在钱 | 国产精品一级毛片A片骨灰盒 | 粉嫩小仙女高潮喷水 | 99热这里只有精品99re国产永久 | 乱色熟女一区二区三区1000部 | 粉嫩嫩虎白肉臀少妇A片 | 北条麻纪 无码 在线 视频 | 亚洲在线免费观看视频播放 | EEUSS鲁丝一区二区 | 黄色长视频免费观看 | 91麻豆精品A片国产在线观看 | 91精品福利观看 | 亚洲熟妇无码av另类本色 | 国产美女裸体视频 | 久久精品人妻一区二区三区a | 另娄姓老熟妇BBwBBW |