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Many novices, in the early stage of raising rabbits, for example, looked for and asked around, and finally entered 30-50 or 100 breeding rabbits. At the beginning of raising, the first to second fetuses, estrus, breeding and breeding were relatively smooth, and the nest yield was relatively high. Although they did not do many necessary immunization and management chores, the survival rate was also very high, and some even reached about 95%.

看著一窩一窩精靈一樣的小兔子，實在喜歡人，到了該賣的時候，看看哪個兔子都不舍得賣，就連根本不可以做種的兔子和攜帶各種各樣病菌的都不舍得賣，都想留種，發展壯大。

Looking at a nest of ELF like rabbits, I really like people. When it's time to sell, see which rabbit is not willing to sell. Even rabbits that can't be planted at all and those carrying all kinds of germs are not willing to sell. They all want to keep seeds and grow.

并暗自得意：這養兔子好像也沒多難呀，我沒什么經驗和技術不也養的非常好嘛。且慢得意，到了第三～第四胎，發情也難了，配種也難了，實際受孕率更是鳳毛麟角啦，不管怎么配，甚是配了三～四次也受孕不了，兔場的各種各樣問題也都隨之而來。折騰來折騰去，就是搞不明白什么原因。

And secretly proud: it doesn't seem very difficult to raise rabbits. I don't have much experience and technology. I don't also raise rabbits very well. Wait and be proud. When you get to the third to fourth fetus, it's difficult to estrus and breeding. The actual pregnancy rate is even rare. No matter how you match it, you can't get pregnant even after three to four times. All kinds of problems in the rabbit farm follow. Toss around, just don't understand why.

其實，原因也不復雜， 胎～第二胎容易發情配上并成功受孕，那是因為這些新手一般都是買的商品兔（名譽上都是種兔，并且花的也是種兔的價錢)做的種兔，因為沒有繁育過，前期累積的養分可以基本保證正常的發情和繁育。到了第三～第四胎，因為，前面不懂防疫及管理，由于懷孕，哺乳身體透支過大，營養基本都是缺乏嚴重，又加上預防基本都是沒有跟的上，各種病菌毒從四面八方侵入，需要補充營養的沒能及時彌補，后期肌體已經完全失衡，基本都是營養跟不上又加上許多疾病傍身，所以就很難再出現前期那樣的正常發情，容易發情，配種，順利繁育那樣的容易事了，要知道，一個母兔一旦營養缺失，沒有半個月以上，甚更長的時間是很難再恢復到正常或者接近健康度的，這需要幾個方面的配合和跟進，才可以慢慢恢復如初，（具體補充護理見我文章：初胎母兔的孕期管理。）。

In fact, the reason is not complicated. The first to second fetuses are easy to estrus and get pregnant successfully. That's because these novices usually buy commercial rabbits (they are breeding rabbits in reputation and spend the price of breeding rabbits). Because they have not been bred, the nutrients accumulated in the early stage can basically ensure normal estrus and breeding. When we arrived at the third to fourth fetus, because we didn't understand epidemic prevention and management in the front, because of pregnancy, excessive overdraft of breast-feeding body, serious lack of nutrition, and basically no follow-up of prevention, all kinds of bacteria and viruses invaded from all directions, and those who needed to supplement nutrition failed to make up in time, and the body was completely unbalanced in the later stage, Basically, nutrition can't keep up, and many diseases are close to the body, so it's difficult to have such easy things as normal estrus, easy estrus, breeding and smooth breeding in the early stage. You know, once a female rabbit lacks nutrition, it's difficult to return to normal or close to health for more than half a month or even longer, This requires the cooperation and follow-up of several aspects before it can recover slowly. (for specific supplementary care, see my article: pregnancy management of newborn female rabbits.).

這個時間如果能夠及時補救，還不是太晚，可惜，許多養兔新手沒有及時跟進亡羊補牢，找出不足，加以彌補。而是拼命想發展擴大，不愿或者不舍得淘汰早應該淘汰的病兔及不適合做種的兔子，并賣出前幾胎所生的商品兔以緩解經濟上的壓力和種群不合理的擴大。就這樣，為了發展而發展，結果兔子是多了，可飼料、預防藥品、人工、水電及未知風險都在逐步加大，弄的自己疲憊不堪，經濟壓力陡增，這個時候才感到養兔不容易，更沒有自己當初想像的那樣容易了。

If this time can be remedied in time, it is not too late. Unfortunately, many novices who raise rabbits do not follow up in time, find out the deficiencies and make up for them. Instead, they desperately want to develop and expand, are unwilling or unwilling to eliminate the sick rabbits that should have been eliminated and the rabbits that are not suitable for breeding, and sell the commercial rabbits born from the first few births to alleviate the economic pressure and unreasonable expansion of the population. In this way, in order to develop, there are more rabbits. However, feed, preventive drugs, labor, water and electricity and unknown risks are gradually increasing. They are exhausted and the economic pressure increases sharply. At this time, they feel that raising rabbits is not easy, let alone as easy as they thought.