First of all, let's talk about what kind of sows are native sows, native sows and binary sows.
1, what kind of sow is a native sow?
Sows are local pig breeds in China, and there are pig breeds all over China, such as Taihu pig, Tibetan pig, Beijing black pig and Shanghai white pig. The advantages of these local pig breeds are strong disease resistance, high fecundity, good meat quality and rough feeding resistance, but the disadvantages are slow growth, high feed consumption and low lean meat rate.
2. What kind of sow is a sow?
Sows bred by crossing between China local pig breeds and foreign pig breeds, such as those bred by crossing between Taihu pig mother and Duroc father, and those bred by crossing between local pig breeds and local pig breeds, such as those bred by crossing between Taihu pig and Shanghai white pig, are rare.
Sows with mixed soil inherited the advantages of China local pigs, improved the shortcomings of slow growth of China local pigs, and were more suitable for many farmers.
3. What kind of sow is a binary sow?
It is a sow produced by crossing foreign pig breeds with foreign pig breeds such as Landrace and Duroc. The advantages of this kind of pig are high growth speed, high feed utilization rate and high lean meat rate, but the disadvantages are high feed requirements and high feeding technology, and it is difficult to master sow estrus.
Second, what kind of sow is suitable for retail investors?
Retail investors refer to farmers with small scale, small breeding quantity, low breeding technology and relatively simple equipment.
Different regions in China have different living habits and pork consumption. Some places have the habit of eating local pork, and some places have the habit of making bacon ham, all of which require local pig breeds.
Most retail investors are relatively backward in technology, the market is local, and the feed is local agricultural products. These characteristics of retail investors are suitable for breeding sows.
Sows with mixed soil have improved the slow growth of local pigs and inherited the advantages of good quality of local pork, which is more suitable for retail farming.
In the past, binary sows were raised. Because estrus was not obvious, they missed estrus every time and had fewer litters every year. Later, I changed to raise local sows. It's not that binary sows are not good, but that my breeding technology is not good and I am not suitable for raising binary sows.
Based on the above characteristics, I think it is best for free-range farmers to raise miscellaneous sows.