中文字幕不卡在线HD女神喷水,凹凸国产熟女精品视频app,麻豆人妻,日韩在线网址,国产乱码1卡二卡3卡四卡5,国产成人一区二区三区免费 ,午夜在线观看成人av,久久精品国产亚洲av嫖农村妇女,欧美日本道免费二区三区,日本欧美一区二区三区在线播放

長(zhǎng)毛兔產(chǎn)后多少天配種好?

發(fā)布日期:2020-04-23 來(lái)源:http://m.lilituan.com 發(fā)布人:admin

  雌兔性成熟后,每隔一段時(shí)間卵巢就會(huì)成熟一批卵泡,使其發(fā)情,如果沒(méi)有交配的刺激無(wú)法排卵,這些成熟卵泡就會(huì)在雌激素和黃體酮的協(xié)同作用下逐漸縮小和退化。后來(lái),新的卵泡開(kāi)始成熟,發(fā)情,使母兔始終處于周期性發(fā)情狀態(tài)。一個(gè)周期的熱量從上一個(gè)熱量的開(kāi)始到下一個(gè)熱量的開(kāi)始。母兔發(fā)情周期不固定,易受外界環(huán)境影響,如攝食、光照、營(yíng)養(yǎng)、天氣、公兔效應(yīng)等。一般來(lái)說(shuō),母兔的產(chǎn)后和斷奶發(fā)情是常見(jiàn)的。在泌乳期間,發(fā)情受泌乳強(qiáng)度和營(yíng)養(yǎng)水平的影響。哺乳期發(fā)情周期約5-7天,每次發(fā)情時(shí)間約48小時(shí)。雌兔應(yīng)選擇在繁殖期交配,受孕率較高;如果母兔沒(méi)有發(fā)情,進(jìn)行強(qiáng)制交配,受孕率低。據(jù)不完全的臨床統(tǒng)計(jì),強(qiáng)制交配的受孕率在10-50%之間。
  After sexual maturity, the ovaries of female rabbits will mature a batch of follicles every other period of time, making them estrous. If they cannot ovulate without the stimulation of mating, these mature follicles will gradually shrink and degenerate under the synergistic effect of estrogen and progesterone. Later, the new follicles began to mature and oestrus, so that the female rabbit was always in the state of periodic oestrus. The heat of a cycle starts from the beginning of the previous heat to the beginning of the next heat. The estrous cycle of female rabbit is not fixed, and it is easy to be affected by the external environment, such as feeding, light, nutrition, weather, male rabbit effect, etc. Generally speaking, it is common for females to have estrus after childbirth and weaning. During lactation, oestrus is affected by lactation intensity and nutritional level. The estrus cycle of lactation is about 5-7 days, and each estrus lasts about 48 hours. Female rabbits should choose to mate in the breeding period, with a higher pregnancy rate; if female rabbits do not have estrus, forced mating, with a lower pregnancy rate. According to incomplete clinical statistics, the pregnancy rate of forced mating is between 10-50%.
  在實(shí)際生產(chǎn)中,經(jīng)常會(huì)有農(nóng)場(chǎng)問(wèn),長(zhǎng)毛兔產(chǎn)后多少天配種好?根據(jù)我的經(jīng)驗(yàn),現(xiàn)在將在實(shí)際生產(chǎn)中用到的養(yǎng)殖模式如下,希望對(duì)廣大農(nóng)場(chǎng)有所幫助:
長(zhǎng)毛兔
  In the actual production, often there will be farms to ask, how many days after the birth of long hair rabbit breeding good? According to my experience, the breeding mode that will be used in the actual production is as follows, hoping to be helpful to the vast farms:
  一、血配
  1、 Blood match
  “血配”又稱(chēng)頻密繁殖,即在母兔交配完成后3天內(nèi)分娩。
  "Blood matching" is also called frequency dense reproduction, which means that the female rabbits give birth within 3 days after mating.
  優(yōu)點(diǎn):1、檢查情況容易,兔產(chǎn)后發(fā)情普遍,不需要光照或激素刺激;2. 輪胎年利用率高。缺點(diǎn):1。這種交配方式,哺乳和懷孕可以同時(shí)發(fā)生,很容易使母兔體重下降,身體變差;2. 2. 泌乳對(duì)生殖性能有負(fù)面影響,導(dǎo)致產(chǎn)仔數(shù)減少;3.母兔淘汰率高。
  Advantages: 1. It is easy to check the condition, and the oestrus is common in rabbits after childbirth, which does not need light or hormone stimulation; 2. The annual utilization rate of tires is high. Disadvantages: 1. This kind of mating mode, lactation and pregnancy can occur at the same time, it is easy to make the female rabbit lose weight and become worse; 2. 2. lactation has a negative impact on the reproductive performance, leading to a decrease in the number of offspring; 3. the elimination rate of female rabbit is high.
  如果你想使用這種方法,你必須滿足以下要求:2. 兔媽媽的材料應(yīng)該是高檔的,含有足夠的能量和蛋白質(zhì)。3.儲(chǔ)備的兔媽媽可以自己飼養(yǎng)。
  If you want to use this method, you must meet the following requirements: 2. The material of the mother rabbit should be high-grade, with enough energy and protein. 3. The reserve mother rabbit can be raised by herself.
  二、產(chǎn)后12天匹配
  2、 12 day postpartum matching
  這種方法也被稱(chēng)為半頻繁繁殖,即在雌性兔子分娩后12天內(nèi),在交配完成之前和之后。有的兔場(chǎng)在產(chǎn)后7-9天,有的兔場(chǎng)在產(chǎn)后18天,均屬于半頻密集繁殖,一般按兔群質(zhì)量選擇。這種養(yǎng)殖方式,是目前規(guī)?;B(yǎng)兔場(chǎng)使用更多的養(yǎng)殖方式,也是筆者的主要養(yǎng)殖方式。
  This method is also known as semi frequent reproduction, i.e. within 12 days after delivery, before and after mating. Some rabbit farms are 7-9 days postpartum, and some are 18 days postpartum. They are all half frequency intensive reproduction, generally selected according to the quality of rabbit population. This kind of breeding mode is the most widely used one in large-scale rabbit farms, and also the main breeding mode of the author.
  優(yōu)點(diǎn):1.在這種交配模式下,雌兔的年出生數(shù)和產(chǎn)仔數(shù)是理想的。2、幼兔可在35天內(nèi)斷奶,保證斷奶重量和斷奶成活率。缺點(diǎn):兔媽媽在哺乳期發(fā)情不固定,需要反復(fù)檢查情況,工作量大。
  Advantages: 1. In this mating mode, the annual birth and litter size of female rabbits are ideal. 2. Young rabbits can be weaned within 35 days to ensure weaning weight and survival rate. Disadvantages: the mother rabbit's oestrus is not fixed during the lactation period, which needs to be checked repeatedly, and the workload is heavy.
  建議:采用這種配種方式來(lái)養(yǎng)殖兔場(chǎng),可以配合使用燈光來(lái)激發(fā)熱量,減少查房的工作量,提高立柱的均勻性。
  Suggestion: using this kind of breeding method to breed rabbit farm, we can use light to stimulate heat, reduce the workload of rounds, and improve the uniformity of columns.
  三、斷奶后比賽
  3、 Post weaning competition
  斷奶后,飼養(yǎng)正常,即斷奶后3-5天。
  After weaning, feeding is normal, that is, 3-5 days after weaning.
  優(yōu)點(diǎn):1。兔寶寶斷奶后,兔媽媽發(fā)情規(guī)律強(qiáng),不需要光照或激素刺激,易掌握;2. 信息核查工作量相對(duì)較小;3.兔媽媽體質(zhì)好,利用時(shí)間長(zhǎng),淘汰率低;4、幼兔斷奶時(shí)間不限,確保幼兔斷奶體重和成活率;4、兔媽媽對(duì)飼料的要求不高,可以和商品兔一起吃一種材料(注意多放點(diǎn)花生),管理簡(jiǎn)單。缺點(diǎn):每年輪胎數(shù)量少。
  Advantages: 1. After weaning the baby rabbit, the mother rabbit has a strong estrus law, which is easy to master without light or hormone stimulation; 2. The workload of information verification is relatively small; 3. The mother rabbit has a good constitution, a long utilization time, and a low elimination rate; 4. The weaning time of the baby rabbit is unlimited to ensure the weaning weight and survival rate of the baby rabbit; 4. The mother rabbit does not have high requirements for feed. She can eat a kind of material together with the commercial rabbit (pay attention to put more peanuts), and the management is simple. Disadvantages: fewer tires per year.
  以上是長(zhǎng)毛兔廠家為大家介紹的相關(guān)內(nèi)容,想要了解更多內(nèi)容,歡迎訪問(wèn)網(wǎng)站:http://m.lilituan.com
  The above is the relevant content introduced by the long haired rabbit manufacturer. To learn more, please visit the website: http://m.lilituan.com
永久免费不卡在线观看黄网站| 手机在线中文字幕国产| 国产精品午夜福利资源| 精品国产自| 综合色天天久久| 国产一区二区日韩在线| 中国老太老肥熟女视频| 日本高清视频在线一区二区三区| 亚洲av永久无码精品无码四虎| 网友自拍人妻一区二区三区三州 | 爽爽影院免费观看| 97香蕉碰碰人妻国产欧美| 精品国产成人a在线观看| 久久久亚洲欧洲日产国码αv | 色欲AV无码一区二区人妻| 亚洲精品有码在线观看| 日韩a级毛片| 97超碰精品成人国产| 最好看的最新高清中文视频| 在线观看无码av免费不卡网站| 中文字幕不卡在线播放| 日本japanesexxxxx乱| 精品人妻一区二区三区中文久久| 国产综合色在线视频播放线视| 天堂在线www| 俺来也俺去啦最新在线| 狠狠躁夜夜躁人人爽天天天天| 国产超碰人人做人人爱| 欧美牲交a欧美牲交aⅴ| 亚洲一区二区三区在线播放无码| 黄页网址大全免费观看| 2014av天堂无码一区| 日韩综合精品一区二区三区| 精品久久久久88久久久| 精品乱人伦一区二区三区| 90后极品粉嫩小泬20p| 亚洲国产果果在线播放在线| 无码国产精品一区二区免费模式| 97久久精品亚洲中文字幕无码 | 国产最新进精品视频| 精品久久久久久无码不卡|