欧美黄色看_精品一区二区三区日本_男女一边摸一边做羞羞视频免费_久产久精品_一级在线_49vv看片免费

長毛兔講解自然交配配種時期的確定

發布日期:2014-11-04 來源:http://m.osovetu.com 發布人:admin

⑴ 根據母兔發情表現確定配種時間。肉母兔的發情周期變化較大,一般在8-15天,發情期一般是3天左右。發情表現為舉止不安,食欲減退,常以前肢扒箱或后肢"頓足",有時還有銜草做窩現象,外陰部潮濕紅腫。整個發情期分為前期、中期、后期,其判斷主要看陰戶的變化情況:發情前期變得較濕潤、微腫、粉紅色;中期濕潤、腫大、呈大紅色(俗稱老紅);后期濕潤、腫大、紫黑色。更佳的配種時間是發情的中后期。
To determine the mating time according to the female rabbit estrus expression. Mother rabbit meat estrous cycle changes larger, generally in the 8-15 days, the estrous period is generally 3 days. Estrus behavior manner discomfort, loss of appetite, often in the forelimb or hindlimb grilled box "stomp", and sometimes Pyrolae nest phenomenon, vulva damp redness. The entire season is divided into prophase, metaphase, anaphase, the judgment mainly to see the changes: vulva proestrus become more moist, slightly swollen, pink; mid moist, swelling, a big red (commonly known as the old red); the late wet, swelling, purple black. The best time is the late estrus in breeding.

⑵ 試情法確定交配時期。把母兔放入公兔欄內,當公兔追逐爬跨時,如母兔作接受交配姿勢,說明母兔已發情,即可進行配種。否則,未發情,不能交配。
The determination of the mating period test conditions the method. The mother rabbit into the male rabbit column, when the male rabbit chase intromission, such as mother rabbit accepts the mating posture, illustrate the mother rabbit has estrus, can be breeding. Otherwise, not in estrus, not mating.
⑶ 血配。即母兔產仔后1-2天進行配種。
The blood distribution. That the mother rabbit litter performed 1-2 days after mating.
長毛兔http://m.osovetu.com/ 
主站蜘蛛池模板: 成人黄色免费看 | 久久麻豆视频 | 五月婷婷中文 | 欧美日本在线 | 久久久久国产精品一区 | 国产精品一区一区三区 | 国产视频第一区 | 久久se精品一区精品二区 | 国产免费一级特黄录像 | 黄色片播放视频 | 欧美在线免费视频 | 欧美天天干 | 中文字幕亚洲成人 | 黄色在线观看视频免费 | 可以免费看的毛片 | 91精品国产成人 | 欧美成人免费 | 久久国产精品99久久久久久牛牛 | 亚洲一区精品在线 | 久久在线免费视频 | 国产视频一区二区在线 | 国产一区二区三区免费观看在线 | 日韩av综合 | 精品久久久影院 | 欧美国产综合 | 欧美1级| a级片在线免费看 | 国产精品三级在线 | 黄色一级视频播放 | 亚洲首页| 国产精品久久久久久久久久久久久 | 久久久精品影院 | 欧美综合在线观看 | 国产精品毛片一区二区三区 | 精品国产一区探花在线观看 | 久久久亚洲| 亚洲欧美日韩综合 | 黄色一级片a | 欧美日韩国产中文字幕 | 成年人免费观看视频网站 | 中文字幕亚洲视频 |