1. Muyuan (SZ:0027 14): a well-known domestic pig breeding enterprise, whose business covers pig breeding, breeding, processing and sales.
2. Shi Wen Co., Ltd. (SZ:300498): One of the largest animal husbandry enterprises in China, whose main business includes the breeding and sales of broilers and pigs.
3. New Hope (SZ:000876): A famous agricultural and animal husbandry enterprise in China, whose business covers feed, breeding, meat processing and trade.
4. Zhengbang Technology (SZ:002 157): a well-known domestic pig breeding enterprise, whose business covers breeding pigs, pig breeding and feed processing.
5. Tianbang Co., Ltd. (SZ:002 124): a well-known domestic pig breeding enterprise, whose business covers feed, breeding and food processing.
6. Shuanghui Development (SZ:000895): the largest meat processing enterprise in China, whose main business includes pig slaughtering, meat processing and sales.
7. Yurun Food (HK:0 1068): a well-known meat processing enterprise in China, whose business covers pig breeding, slaughtering, meat processing and sales.
8. Long Da Meat (SZ:002726): A well-known pig breeding enterprise in China, whose business covers pig breeding, slaughtering, meat processing and sales.
It should be noted that stock investment has certain risks, and investors should conduct full research when buying stocks, pay attention to market dynamics, and ensure the correctness of investment decisions. In addition, stock markets in different countries and regions may have different investment rules and policies, so investors should understand local laws and regulations before participating in stock trading.