黄粉虫的繁殖之谜，犹如小母猪的育儿难题。它问世于何时？是否能在不发情的日子里，依然绽放出无与伦比的香气呢？
一、 小母猪几月大可以配种
自留的小母猪一般8个月左右可以配种，但具体的需根据母猪品种来定。如地方土猪一般在6-8个月龄、体重达到60-70千克时配种；而大白猪、长白猪、杜洛克 pigs等品种，一般在9-10月龄，体重达120-130千克时配种。
小母猪大约在初情期后的1到2个月是可以配种，而母猪的初情期是在五到八个月大的时候，因为现在pig多，有们品种甚至三个月的大年龄就已经到了初情期，而且基本都具有繁殖能力了。查看母猪是否发情，可以观察母亲是否由红色变成了紫红色，肿胀消退，出现皱纹，还有母亲是否流出液体等等，当出现这种症状，是小母亲能够繁殖的时候。
二、小母亲不发情怎么办
营养不良引起
Mother's fertile period requires a lot of protein, amino acids, vitamins and minerals. However, many farmers feed the backup sows with gestation diet and breeding diet, or they don't give them lactation diet during lactation period but other diets. In all feeds, gestation diet provides no nutrition; it only gives the sow a feeling of fullness. Therefore, before putting backup sows for breeding purposes in one to two months ago, you should change to specialized feed for backup sows or lactating sow.
Sow must be fed lactating feed during lactation period not only to ensure milk is abundant and piglets grow fast but also to ensure that after weaning piglets mother can have normal estrus and ovulation.
Feed contains mold
If you use premium-grade feed as long as within the expiration date is used it can be fine. If you self-mix your own feed when local temperature is high humidity high recommend adding an antifungal agent.
Mold toxins will cause sow not to ovulate or fake estrus including what we see at nursing stage of suckling piglet or rearing stage water blistering on mouth nose red swelling this is all caused by mold toxins.
Also every time after feeding mother remember clean up troughs mother paws out fallen food on ground under hot weather environment several hours can produce large amounts of mold toxins so this food must be cleaned away.
After reading this article you will know more about how small breeders are able to keep their own stock healthy productive while saving money by avoiding expensive commercial feeds through careful management attention detail knowledge gained from years experience running their own farm
标签： 农业学术报告
