1, closed in captivity. This is the most mainstream way to raise pigs. Using modern pig-raising technology, you can be slaughtered in six months. At present, the proportion of pigs raised in this way in the market exceeds 90%.

2. Traditional stockings. Following the pig-raising mode of farmers decades ago, they eat freely, eating coarse grains, green feed and so on. You can move freely and release your nature, and you exercise a lot. No vaccination, less medicine, basically relying on the body to get sick, pigs grow slowly, and the slaughter time is not less than 10 months.

3. semi-captive and semi-stocking. This method is closed in captivity in the early stage, eating feed, vaccination and medication; After stocking for a period of time in the later period, some green feed will be added when eating. The vast majority of local pigs in the market belong to this model, and the slaughter time is mostly 7-9 months.

4. Welfare pigs. Large pig farms raise pigs according to the standards of welfare farming, and there are animal welfare associations in China, which will formulate relevant standards and carry out certification.

5. Breeding without resistance. In the process of raising pigs, not only is there no drug resistance in the feed link, but antibiotics are not used in the breeding link. This breeding method is called non-resistance breeding. Because of the complexity of pig diseases in China, it is difficult to achieve resistance in the breeding process, and few pig farms really achieve resistance breeding.