如何提高長(zhǎng)毛兔的受胎率呢？
發(fā)布日期：2020-01-09
來(lái)源：http://gdwk56.com 發(fā)布人：admin
影響母兔胚胎采用率的因素多種多樣，與品種、生長(zhǎng)發(fā)育、營(yíng)養(yǎng)狀況、交配年齡、交配時(shí)間、季節(jié)、交配方式等密切相關(guān)。介紹了提高受孕率的常用方法:
There are many factors that affect the embryo utilization rate of female rabbits, which are closely related to variety, growth and development, nutritional status, mating age, mating time, season, mating mode, etc. The common methods to improve the pregnancy rate were introduced
1)選好雄、雌兔:根據(jù)雄、雌兔的選擇要求，選擇繁殖性能好的品種，選優(yōu)。
1) Select the male and female rabbits: according to the selection requirements of male and female rabbits, select the breed with good reproductive performance and select the best one.
2)適時(shí)交配:即適時(shí)的初次交配和更佳發(fā)情期的交配。
2） Mating at the right time: the first mating at the right time and the mating at the best estrus.
3)多育種商品兔的生產(chǎn):即同一品種或不同品種的兩只公兔先后與同一母兔交配。一次交配后，第二次交配將在5-10分鐘后進(jìn)行。這樣可以提高受孕率，并對(duì)育種兔適應(yīng)性強(qiáng)，成活率高，生長(zhǎng)快。
3) Production of multi breeding commercial rabbit: that is, two male rabbits of the same variety or different varieties mate with the same female rabbit successively. After the first mating, the second will take place in 5-10 minutes. In this way, the conception rate can be improved, and the adaptability to breeding rabbits is strong, the survival rate is high, and the growth rate is fast.
4)純育種重復(fù)交配:一次交配后，每隔5-8分鐘與同一雄兔進(jìn)行另一次交配。這樣使母兔的輸卵管內(nèi)有較長(zhǎng)時(shí)間內(nèi)具有較強(qiáng)活力的精子，使卵巢教育增加的卵子成為受孕器即可。
4) Pure breeding repeated mating: after the first mating, another mating with the same male rabbit every 5-8 minutes. In this way, the female rabbit's oviduct has strong motile sperm for a long time, and the egg with increased ovarian education can become a conception device.
5)交配后，肌肉注射50單位絨毛膜促性腺激素(HCG)或靜脈注射25單位絨毛膜促性腺激素可促進(jìn)排卵和多胎妊娠。保證母兔受孕和提高受孕率的關(guān)鍵是保證公兔和母兔的正常營(yíng)養(yǎng)水平，保證高質(zhì)量、有活力的精液的存在，正確掌握發(fā)情交媾期。養(yǎng)兔場(chǎng)不提倡重復(fù)育種和親本育種，其原因是不利于雄兔的飼養(yǎng)。太多的嬰兒，對(duì)母親的傷害，沒(méi)有足夠的牛奶吃，也會(huì)造成高死亡率。
5) After mating, intramuscular injection of 50 units of hCG or intravenous injection of 25 units of hCG can promote ovulation and multiple pregnancy. The key to ensure the conception of female rabbits and improve the conception rate is to ensure the normal nutrition level of male and female rabbits, to ensure the existence of high quality and active semen, and to correctly master the oestrus and copulation period. Repeated breeding and parent breeding are not advocated in the rabbit farm because it is not conducive to the breeding of male rabbits. Too many babies, harm to the mother, not enough milk to eat, can also cause high mortality.
The above is a detailed introduction to how to improve the conception rate of Angora rabbits. For more information, please click http://gdwk56.com
