国产麻豆福利av在线播放,亚洲自拍色综合,精品国产伦一区二区三区,一级a爱做片在线观看免费潘金莲,啦啦免费在线观看,老司机免费午夜福利视频,边做饭边被躁bd苍井空图片 ,国产aⅴ爽av久久久久久麻豆

        種兔母兔難產的造成的三項原因?

        發布日期:2016-12-02 來源:http://www.chle.cn 發布人:admin

        1、初產適時配種。種兔母兔初次配種年齡在5.5個月齡左右,體重在2.75公斤左右。如果初產年齡、體重過高、過重,初產種兔母兔的難產率有增高的趨勢。

        1 primiparous, timely breeding. Rabbit rabbit mother first breeding at the age of 5.5 months old, weighing 2.75 kg. If the age of first, overweight, overweight, primiparous female rabbit rabbit dystocia rate increased.

        2、種兔母兔懷孕期提供適宜的營養。有些兔子養殖戶有一個誤區:認為種兔一旦懷孕,飼喂的越多越好,飼料營養越高越好,其實據山西省農科院畜牧獸醫研究所兔子養殖研究室在開展“種兔飼養標準及預混料”課題研究中發現,對于懷孕的種兔母兔,采用飼料營養水平為低能量(10.47兆焦/千克)、中蛋白水平(粗蛋白17.5%),限制飼養(170克/天)的飼養方式,窩產仔數更高,未發現有難產情況發生.

        2, rabbit rabbit pregnancy to provide appropriate nutrition. Some rabbit farmers have a misunderstanding that the rabbit once pregnant, feeding more, feed nutrition is good, in fact, according to the rabbit of Shanxi Academy of animal husbandry and Veterinary Research Institute of aquaculture research laboratory in carry out the "rabbit feeding standard and premix" found in the research, for pregnant female rabbit rabbit, the feed nutrition level low energy (10 trillion and 470 billion kJ / kg) and protein levels (17.5% crude protein), restricted feeding (170 g / day) feeding, litter size was not found to have the highest, dystocia occurs.

        而采用高能量、高蛋白的營養水平,產仔數減少,分娩障礙發生率較高。因為高能量、高蛋白造成胎兒過大,占據子宮空間,引起死胎增加,同時胎兒過大,難產的風險增大。但如果懷孕種兔母兔體質過弱,由于產力不足,也易造成難產。因此在生產中根據種兔母兔的體況,調節飼喂量,保持7~8成膘情就可以了,待分娩后再逐漸增加飼喂量。

        The nutrition level of high energy, high protein, decreased litter size, birth disorder incidence. Because of the high energy, high protein cause fetal uterus is too large, occupy the space, causing stillbirth increased, while the fetus is too large, the increased risk of dystocia. But if the pregnant female rabbit rabbit body is too weak, because the production capacity is insufficient, but also easy to cause dystocia. Therefore, in the production of female rabbit rabbit according to the body condition, adjust feeding amount, keep 7 ~ 8 of the can, stay after delivery and then gradually increase the feeding amount.

        3、胎位不正。種兔難產也可能是胎位、胎向、胎勢不正引起。

        3, malposition. Rabbit dystocia may also be the fetal position, fetal and fetal potential is not caused to.

        山東省蒙陰鑫華種兔場的長毛兔提供技術支持,更多精彩內容請進入:http://www.chle.cn,我們會傾情為您解答。

        Provide technical support for the Shandong Province, Mengyin Xinhua Tuchang Angora rabbit, more exciting content, please enter: http://www.chle.cn, we will love to answer your questions.

         

        主站蜘蛛池模板: 国产成人无码免费看视频软件| 边喂奶边中出的人妻| 亚洲青青草视频在线播放| 国产真人做爰毛片视频直播| 亚洲av影院一区二区三区| 人妻少妇精品久久久久久| 午夜福利av无码一区二区| 在线免费观看毛片av| 亚洲av午夜精品无码专区| 国产美女自慰在线观看| 亚洲 综合 校园 欧美 制服| www.国产福利| 好大好猛好爽好深视频免费| 成人欧美日韩一区二区三区| 国产精品人妻久久毛片高清无卡 | 九月婷婷人人澡人人添人人爽| 国产激情无码视频在线播放性色 | 国产色a在线观看| 亚洲成a人片在线不卡一二三区 | 人妻熟妇乱又伦精品视频中文字幕| 日韩精品人妻中文字幕| 韩国19禁无遮挡啪啪无码网站| 久久经精品久久精品免费观看| 制服丝袜美腿一区二区| 亚洲日本一区二区一本一道| 99久久99久久精品免费观看| 日本一区二区精品色超碰| 伊人成人在线高清视频| 国产精品99久久久久久www| 韩国无码中文字幕在线视频| 超清无码一区二区三区| 久久久中文字幕日本无吗| 亚洲无人区一卡2卡三卡| 免费日韩av网在线观看| 久久一卡二卡三卡四卡| 激情毛片无码专区| 亚洲熟妇AV午夜无码不卡| 99久久精品免费看国产| 人摸人人人澡人人超碰| 色先锋影音岛国av资源| 亚洲日本韩国欧美云霸高清|