久久青草国产免费频观,青青草视频原手机在线观看,av在线色,国产精品一区二区在线观看完整版,免费观看成人稀缺视频在线播放,香蕉网站在线,日本免费人成视频播放,国产精品一区在线蜜臀

        種兔母兔難產(chǎn)的造成的三項(xiàng)原因?

        發(fā)布日期:2016-12-02 來源:http://www.parmwkd.cn 發(fā)布人:admin

        1、初產(chǎn)適時(shí)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(chǎn)年齡、體重過高、過重,初產(chǎn)種兔母兔的難產(chǎn)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(yǎng)。有些兔子養(yǎng)殖戶有一個誤區(qū):認(rèn)為種兔一旦懷孕,飼喂的越多越好,飼料營養(yǎng)越高越好,其實(shí)據(jù)山西省農(nóng)科院畜牧獸醫(yī)研究所兔子養(yǎng)殖研究室在開展“種兔飼養(yǎng)標(biāo)準(zhǔn)及預(yù)混料”課題研究中發(fā)現(xiàn),對于懷孕的種兔母兔,采用飼料營養(yǎng)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(yǎng)(170克/天)的飼養(yǎng)方式,窩產(chǎn)仔數(shù)更高,未發(fā)現(xiàn)有難產(chǎn)情況發(fā)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(yǎng)水平,產(chǎn)仔數(shù)減少,分娩障礙發(fā)生率較高。因?yàn)楦吣芰俊⒏叩鞍自斐商哼^大,占據(jù)子宮空間,引起死胎增加,同時(shí)胎兒過大,難產(chǎn)的風(fēng)險(xiǎn)增大。但如果懷孕種兔母兔體質(zhì)過弱,由于產(chǎn)力不足,也易造成難產(chǎn)。因此在生產(chǎn)中根據(jù)種兔母兔的體況,調(diào)節(jié)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(chǎn)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(shù)支持,更多精彩內(nèi)容請進(jìn)入:http://www.parmwkd.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.parmwkd.cn, we will love to answer your questions.

         

        主站蜘蛛池模板: 亚洲午夜久久久久中文字幕久 | 日韩V欧美V中文在线| 蜜芽尤物原创AV在线播放 | 日韩一区二区一卡二卡av| 亚洲人成影院在线高清| 国产00高中生在线无套进入| 无码AV大香线蕉伊人久久| 欧洲亚洲成av人片天堂网| 欧美乱妇高清无乱码免费| 免费黄网站久久成人精品| 在线视频不卡在线亚洲| 亚洲无码中文字幕日韩无码| 亚洲天堂一区二区久久| 无遮挡1000部拍拍拍免费| 无码无在线观看| 久久伊人精品只有这里有| 国产精品露脸3p普通话 | 国产精品久久久在线视频| 久久精品国产成人av| 无码专区亚洲avl| 国产精品乱一区二区三区| 国精产品自偷自偷ym使用方法 | 精品国产又大又黄又粗av| 国产实拍强伦奸在线观看| 91综合久久婷婷久久| 国产精品国产高清国产一区| 日本高清一区免费中文视频| 国产成人综合日韩精品无| 精选麻豆国产AV| 在线观看精品视频网站www| 精品国产一区二区三区久久女人| 国产日韩AV无码免费一区二区| 国产精品无套粉嫩白浆在线| 激情综合婷婷丁香五月尤物| 孕交videosgratis孕妇| 久久精品国产乱子伦多人| 久久久9色精品国产一区二区三区 国产三级黄色片子看曰逼大片 | 国产成人久久精品激情91| 丁香五月婷激情综合第九色| 五月天婷婷网亚洲综合在线| 一区二区三区黄色大全|