<center id="7kism"><video id="7kism"><tbody id="7kism"></tbody></video></center>

<bdo id="7kism"><legend id="7kism"></legend></bdo>

<nav id="7kism"></nav>
<bdo id="7kism"></bdo>

        91精品免费久久久久久久久,国产欧美亚洲日韩图片,午夜高清国产拍精品福利,欧美成人免费全部观看,五月婷久久麻豆国产,欧美另类人妻制服丝袜,97se色综合一区二区二区,色婷婷综合和线在线

        關(guān)于長(zhǎng)毛兔的生長(zhǎng)規(guī)律

        發(fā)布日期:2016-03-01 來源:http://m.51haodu.com 發(fā)布人:admin

          我們都知道長(zhǎng)毛兔的經(jīng)濟(jì)價(jià)值很高,尤其是兔毛,一斤可達(dá)120元左右,作為長(zhǎng)毛兔之鄉(xiāng)蒙陰長(zhǎng)毛兔的養(yǎng)殖更是聞名天下,下面我們蒙陰長(zhǎng)毛兔廠家給大家介紹的是蒙陰長(zhǎng)毛兔生長(zhǎng)規(guī)律。

          We all know that hares economic value is very high, especially the rabbit hair, a kilo of up to 120 yuan, as the hometown of hares darkened hares farming is more famous, below we darkened hares manufacturer to introduce is darkened hares growth rule.

          長(zhǎng)毛兔在整個(gè)生產(chǎn)過程中要經(jīng)過三個(gè)階段:

          Hares in the whole process to go through three stages:

          一、胚胎期 從母兔受精妊娠到仔兔出生時(shí)為止,成為胚胎期,平均為30天,一般可分為胚期(妊娠1-12天)、胎期(妊娠13-18天)和胎兒期(妊娠19-30天)。

          A, embryonic period To seed the rabbit was born from mother rabbit fertilization pregnancy, become the embryonic period, an average of 30 days, generally can be divided into embryonic stage (1-12 days of pregnancy), fetal period (13 to 18 days of pregnancy) and fetal period (gestational 19-30 days).

          二、哺乳期 從出生到斷奶為哺乳期。初生仔兔閉眼封耳,裸體無毛。據(jù)測(cè)定,德系安哥拉兔平均初生重為60克左右,1周齡體重可增加1倍以上,1月齡體重可增加10倍左右。

          Second, from birth to weaning breastfeeding for lactation. Primary seed rabbit eyes ears, naked glabrous. , according to the determination of ashkenazi Angora rabbit average birth weight of 60 grams, more than 1 weeks weight can increase 1 times, 1 months to gain about 10 times.

          三、斷奶期 斷奶期也稱為成長(zhǎng)期,斷奶之后,長(zhǎng)毛兔的生長(zhǎng)速度逐漸減慢,從增重或相對(duì)生長(zhǎng)速度來看,都表現(xiàn)為前期較快,后期較慢。斷奶后幼兔和青年兔的生長(zhǎng)速度,主要受遺傳因素和環(huán)境因素(飼料、管理、自然條件)的影響。

          Three, weaning period Weaning period, also known as growth period, after weaning, the growth of the hares speed gradually slow down, from the point of absolute weight gain or relative growth rate, is characterized by rapid early, late slower. After weaning immature rabbit and speed of the growth of the young rabbit, mainly by genetic factors and environmental factors (feed, management, and the influence of natural condition).

         

        主站蜘蛛池模板: 欧美性猛交xxxxxxxx| 人妻伦理在线一二三区| 91中文字幕在线一区| 久久本色成人综合网| 日韩av中出在线免费播放网站| 久久成人影院精品777| 无码乱人伦一区二区亚洲一| 国产大屁股视频免费区| 国自产拍亚洲免费视频| 最近日本免费高清完整版| 亚洲大尺度专区无码浪潮AV| 日韩欧无码一区二区三区免费不卡| 久久99国产精品成人| 最新国产aⅴ精品无码| 欧美另类xx肥妇| 欧美午夜理伦三级在线观看| 国产女人高潮视频在线观看| 免费看又黄又无码的网站| 日韩女人毛片在线播放| 国产成人a∨激情视频厨房| 国产成人精品午夜视频| 国产一区二区福利视频| 农村老熟妇乱子伦视频| 日韩毛片在线视频x| 亚洲狠狠婷婷综合久久蜜芽| 久久高清超碰AV热热久久| 两个人的免费视频完整版| 国精无码欧精品亚洲一区| 精品国产拍国产天天人| 国产午夜亚洲精品久久| 国产美女无遮挡免费视频网站| 国产日韩精品欧美一区喷| 一区二区在线视频免费观看 | 日本久久一区二区三区高清| 亚洲一区波多野结衣二区三区| 免费成人福利视频| 日韩精品欧美国产在线| 女人夜夜春高潮爽a∨片传媒| 少妇极品熟妇人妻| 美腿丝袜无男人的天堂| 亚洲av影片在线观看|