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一、比例失調(diào)。理論上1只種公兔可以負(fù)擔(dān)8~10只母兔的配種任務(wù)，但實(shí)際上1只種公兔承擔(dān)10只母兔的配種任務(wù)時(shí)，如實(shí)行復(fù)配，那么這只種公兔就要每天連續(xù)配種2次。如此長(zhǎng)期頻繁地使用，種公兔會(huì)因體質(zhì)消耗過(guò)大而導(dǎo)致性欲減退、精液品質(zhì)下降，受配母兔空懷率高，失去種用價(jià)值。
A, imbalance. Theory 1 kinds of male rabbits can afford 8~10 only female rabbit breeding task, but in fact only 1 kinds of male rabbit bear 10 female rabbit breeding task, such as the implementation of the compound, then the only male rabbit every day 2 times continuous breeding. Such a long-term frequent use, a male rabbit will due to physical consumption is too large and lead to decreased libido, semen quality, with female rabbits by empty rate high, the loss of seed value.

  二、配種過(guò)早。長(zhǎng)毛兔的性成熟早于體成熟。小體型品系的兔3~4月齡就達(dá)到性成熟。而6月齡才接近體成熟；大體型品系的兔4~5月齡達(dá)到性成熟，8月齡時(shí)才接近體成熟。有些剛引種的養(yǎng)殖場(chǎng)、戶為了在種兔銷售形勢(shì)好的時(shí)候，早繁殖早出售種兔，不到配種月齡就使種兔提早配種繁殖，結(jié)果因種兔營(yíng)養(yǎng)水平和身體狀況滿足不了自身和胎兒生長(zhǎng)發(fā)育的需要，造成妊娠母兔大量流產(chǎn)，或產(chǎn)下死胎、弱仔，母兔產(chǎn)后無(wú)乳或乳汁不足等情況，這樣不但沒(méi)有達(dá)到預(yù)期目的，反而使種兔身體受到損失，推遲了繁殖期。
Early two, breeding. Angora rabbit early sexual maturity in maturity. Small strains of rabbit 3~4 months reached sexual maturity. And in June was close to the mature age; large strains of rabbit 4~5 months to reach sexual maturity, in August the age was close to maturity. Some just planted farms, for when the rabbit good marketing situation, early breeding Zhongtu early sale, not to breeding months earlier makes rabbit breeding, results due to the need of rabbit nutrition and physical level can not meet the needs of their own and fetal growth and development, resulting in a large number of pregnancy in female rabbits abortion or stillborn birth and weak young, female rabbit postpartum dairy free or insufficient breast milk and so on, so that not only did not achieve the desired objective, but make the rabbit body damage, delayed reproductive period.
  三、連續(xù)血配。在母兔產(chǎn)仔后2天內(nèi)進(jìn)行交配，使哺乳與妊娠時(shí)進(jìn)行，使母兔在單位時(shí)間內(nèi)生產(chǎn)出更多后代的繁殖方法即為血配。這種方法雖然可以迅速地繁殖后代，但不能連續(xù)使用，因?yàn)樵谘鋾r(shí)由于母兔吸收的營(yíng)養(yǎng)物質(zhì)一要維持自身的新陳代謝，二要產(chǎn)生乳汁哺育仔兔，三要供給胎兒生長(zhǎng)的需要，而通常在一般飼養(yǎng)條件下，母兔吸收的營(yíng)養(yǎng)物質(zhì)滿足不了這三個(gè)方面的需求，導(dǎo)致母兔體質(zhì)消耗過(guò)大，身體衰竭，乳汁分泌不足；哺乳仔兔由于營(yíng)養(yǎng)缺乏而體質(zhì)弱、生長(zhǎng)緩慢、死亡率高；所懷的胎兒生長(zhǎng)發(fā)育緩慢，出生后體弱，成活率也低。
Three, continuous with blood. In the female rabbit litter within 2 days after mating, make lactation and pregnancy, the mother rabbit in a unit of time to produce the most offspring breeding method is with blood. Although this method can quickly to reproduce, but can not be used continuously in the blood, because the timing with nutrients absorption of a female rabbit to maintain their own metabolism, two to produce milk to feed their young rabbit, three to provide for the needs of fetal growth, usually in the common feeding conditions, nutrient absorption of the female rabbit can not meet the needs of these three aspects of the demand, resulting in the female rabbit physical exertion is too large, the body failure, lack of milk secretion; suckling rabbits due to the lack of nutrition and physical weakness, slow growth and high mortality; with fetal growth and development is slow, weak after birth, the survival rate is low.