<ruby id="tavm9"><samp id="tavm9"></samp></ruby>

<ruby id="tavm9"></ruby>

<sub id="tavm9"></sub>

    1. 国产av永久无码天堂影院,国产一区精品在线免费看,日日噜噜夜夜狠狠VA视频,两个黑人挺进校花体内np,天天拍夜夜添久久精品大,麻豆变态另类视频在线观看,9999国产精品欧美久久久久久,亚洲乱码精品久久久久..

      養兔粗飼料的喂養

      發布日期:2017-01-07 來源:http://www.xtjjsh.com 發布人:admin

      兔用粗飼料主要包括干草和稿稈兩大類。其中常見的有干青草、干苕糠、干甘薯藤、豆秸、玉米稈、統糠等。這些粗飼料要怎樣選用才好,我們可以其處理方法和營養價值為標準來選用。
      Rabbit forage mainly includes two kinds of hay and straw. The most common are dry grass, dry potato bran, dry beans, sweet potato vine, corn stalk, rice bran etc.. How to choose these roughage to be good, we can choose its treatment methods and nutritional value as the standard.
      就干草來說,可用自然干燥和人工干燥兩種方法來完成青草的干制。自然干制是利用陽光或環境溫度使飼料脫水,達到干制目的。此法所制干草營養成分損失在20%左右,胡蘿卜素損失在70%~80%。其中豆科干草的營養價值更好。人工干制(低溫干制和高溫干制)的優點是營養素損失少,僅為自然干制損失的1/3~1/10。
      In the case of hay, two methods can be used to dry the grass. Natural drying is the use of sunlight or ambient temperature to feed dehydration, dry purpose. In this method, the loss of nutrients in the hay was about 20%, and the loss of carotene was 70%~80%. Among them, legume hay had the best nutritional value. The advantage of artificial drying (low temperature drying and high temperature drying) is the loss of nutrients, which is only 1/3~1/10.

      人工干制中,低溫干制是將熱源溫度控制在幾十度到500℃之間,經數小時,使飼料中水分降低到14%~17%??偟膩碚f,有機物質的損失程度自然干制大于人工干制,低溫干制大于高溫干制,所以選用人工高溫干制的干草營養價值較好,但若考慮飼料成本,則以自然干制的成本更低;豆科干草較禾本科干草營養價值好,應優先考慮。應注意的是:人工干制的干草維生素損失較大,使用時應考慮飼料中維生素的缺乏,相應添加維生素或專用多維來滿足。
      Artificial drying, low temperature drying is to control the temperature of the heat source in a few degrees to 500 degrees C, after a few hours, so that the feed water to 14%~17%. In general, the degree of loss of organic material in the natural drying than artificial drying, low temperature drying than high temperature drying, so the artificial high temperature dry hay nutritive value for the better, but if we consider the cost of feed, with natural drying of the lowest cost; compared with cereal legume hay hay nutrient value, should be given priority consider. It should be noted that: artificial dried hay vitamin loss, should be considered when using the lack of vitamins in the feed, the corresponding vitamin or vitamin C to meet the specific.
      稿稈類中,小麥草質地粗糙、堅硬、葉帶盲刺,有機物消化率低;大麥草質地優于小麥草,春大麥草又比冬大麥草質量好;燕麥草質地軟,稈光滑,不帶盲刺,是農作物稿稈中更好的;稻草木質素含量低,硅含量高,飼養價值低,因而喂兔效果不好,適口性差,飼料報酬極低。
      In the straw, wheat grass, hard, rough texture leaves with blind thorn, digestibility of organic matter is low; barley grass texture is better than wheat grass, wheat straw and spring than winter barley grass quality; oat grass stalk soft texture, smooth, without blind thorn, is the best crop straw in rice straw lignin content; low, high silicon content, low feeding value, thus feeding rabbit effect is not good, poor palatability, feed efficiency is very low.
      相信看了本文的介紹后,對長毛兔http://www.xtjjsh.com這方面也會有自己的一番認識,以后針對的等問題也能很好的解決。
      I believe that after reading the introduction of this article, the long haired rabbit http://www.xtjjsh.com in this regard will have their own understanding of the future and other issues can also be a good solution.

      主站蜘蛛池模板: 小嫩模无套内谢第一次| 久久乐国产精品亚洲综合| 日韩午夜伦| 亚洲一区二区三区免费不卡| 亚洲欧美中文日韩V在线观看| 日日添夜夜操试看一二区| 亚洲欧洲日韩久久狠狠爱| 无码国产片观看| 伊人久久大香线蕉成人综合网| 亚洲日韩欧美自拍他拍| 免费国产在线精品一区不卡| 巨大黑人video| 国产美女裸身网站免费观看视频 | 国模视频一区二区| 无套中出丰满人妻无码| 高h秘书不许穿内裤1vh| 精品欧美一区二区在线观看| 亚洲青涩在线不卡av| 无码av在线一本无码| 亚洲AV无码专区电影在线观看| 国产精品乱一区二区三区| 成人精品视频一区二区三区| 久久亚洲国产成人精品性色| 91亚洲精品福利在线播放| 99中文字幕国产精品| 日本免费一区二区三区中文| 91精品全国免费观看青青| 久久久久女教师免费一区| 亚欧日韩毛片在线看免费网站| 在线一级毛片| 亚洲a免费| 自偷自拍三级全三级视频| 精品国产一区二区三区香蕉 | 男女高潮喷水在线观看| 亚洲最大av无码网站最新| 欧美毛多水多肥妇| 冲田杏梨最好看的一部| 亚洲精品一区二区三区免费观看| 欧美老熟妇乱子伦牲交视频| 国产成人精品亚洲午夜麻豆| 四虎亚洲精品|