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

Five kinds of feed proportion often used in duck raising equipment

As we all know, when using duck raising equipment to raise ducks, the feed ratio is the key factor for duck raising. If the feed ratio is not appropriate, it may cause malnutrition or even slow growth of duck seedlings. Therefore, we must pay attention to the feed ratio of duck raising equipment. Today, we have compiled some skills about feed ratio to share with you.
Since it is self-made feed, the proportion of various nutrients in the feed needs to be controlled by itself, so how to control the proportion of what should be put?
Corn
The name of "king of feed" is not white. Corn is very important when preparing feed. The corn content in many feeds can even reach more than half, which shows the status of corn in feed. The effective energy value of corn is very high, and corn has good palatability and high digestibility for poultry.
What's missing is the low protein content, the imbalance of essential amino acids, and the lack of mineral elements and vitamins, so although corn is good, it still needs other feeds to feed with each other.
Wheat
The crude protein content of wheat feed is more, the amino acids in wheat are more comprehensive than other grains, the vitamin B group is more abundant, and wheat is easy to digest, so the energy value of wheat is next to that of corn. However, the disadvantages of wheat feed are also obvious: the content of vitamin A, vitamin D and various minerals are less, and the anti nutritional factor r-glucan and xylan in wheat can reduce the digestibility of duck feed, and even cause diarrhea of duck feed, so it is a better choice to add corresponding enzyme preparation in Wheat feed.
sorghum
The composition of sorghum is similar to that of corn, but the quality of protein in sorghum is poor, and there are more tannins in sorghum, which will also affect the absorption of egg quality and minerals. Therefore, sorghum should be used as little as possible in the configuration of feed.
Paddy
The husk of rice contains more crude fiber, but the crude protein is less, and the energy is lower, so the proportion should not be too much.
Bran
Bran feed is a by-product of processing rice or flour from grain seeds. The content and quality of crude protein are between legume seed and Gramineae seed. The content of crude fiber and crude fat is higher, but it is easy to deteriorate. Most of the phosphorus in the mineral is in the form of phytate, and the proportion of calcium and phosphorus is unbalanced. In addition, the bran feed has a wide source, soft texture and good palatability
The above five materials are often used in the configuration of duck raising equipment, but other things need to be added to the feed, such as antiviral drugs or other nutrients, so the above is only for reference, and the specific feed ratio of duck raising needs information professionals. Duck equipment manufacturer.

  • 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

99国精产品一区二区三区A片 | 安徽妇女性BBBBB | 在线观看免费粉嫩小泬 | 40露脸-X88AV| 一本一道久久a久久精品蜜桃 | 日日摸夜夜添夜夜添高潮视频 | 欧美 成人 在线观看 | 狠狠躁18三区二区一区 | 2021国产精品视频 | 日本无码人妻精品一区二区三区 | 狠狠色婷婷色一区二区三区 | 8x8×8Ⅹ成人无码免费视频 | 91精品久久久无码中文字幕少妇 | 中文字幕一区二区三区四区50岁 | 欧美日韩亚洲中文字幕 | 欧美黑人乱—大—交视视频 | 一区二区三区四区五区六区七区 | 体内谢精一区二区三区在线视频 | 成人一区少妇人妻 | 成人黄动漫网站蘑菇视频 | 波多野结衣乳巨码无在线观看历史 | 国产18精品乱码在线看 | 91福利视频网站 | 日日夜夜看精品视频免费下载 | 国产国产乱老熟女视频网站97 | 国产91清纯白嫩初高中 | 特级精品毛片免费观看 | 免费婬乱男女婬视频大全 | 特级西西WWW96| 野外玩弄少妇高潮A片 | 少妇冒白浆视频在线观看 | 久久国产乱子伦精品 | 国产成人无码精品久久久电影 | 亚洲AV无码乱码在线观看,爱妻艺 | 台湾三级午夜理伦三级 | 26uuu国产日韩综合在线A片 | 暴力强伦轩一区二区三区在线观看 | 狠狠躁夜夜躁人人爽视频日本 | 午夜精品99久久免费 | 两少女视频哔哩哔哩播放 | 影音先锋成人资源网站 |