1 About genes

According to the research published in the journal Nature, pigs share the same genes and protein mutations related to many human diseases, such as Alzheimer's disease, Parkinson's disease and obesity. The researchers pointed out that through further research, pig genes can breed new therapies to fight these diseases.

Through the study of pig genome, scientists found that pigs have strong adaptability and are easily tempted and domesticated by food, which are very similar to humans.

2 historical origin

The origin of pigs can be traced back to 40 million years. There are signs that domestic pigs may come from Europe and Asia. Among the fossils discovered by people, it is proved that animals like wild boar shuttle through forests and swamps.

Wild boar (pictures are all from the internet, invaded and deleted)

The history of raising pigs in China can be traced back to the early and middle Neolithic period. The earliest domestic pig found so far in China is generally considered to be the Cishan site in Wu 'an County, Hebei Province, about 8000 years ago. According to the records of Oracle Bone Inscriptions unearthed from Yin Ruins in the pre-Qin period, pigs were housed in the Shang and Zhou Dynasties. Then, with the development of production, the requirement of distinguishing different pigs gradually emerged. One of the great innovations in pig raising technology in Shang and Zhou Dynasties was the invention of castration technology.

3 reproductive performance

The reproductive performance of pigs is very strong, and the reproductive performance of different breeds is slightly different. Taihu pig is famous for its high reproductive performance and the highest litter size among known pig breeds in the world. According to records, Taihu pigs have a maximum of 42 litters at a time.

Taihu pig

4 About varieties

There are ten local pig breeds in China: 1 and Huzhu Bamei pig; 2. Rongchang pig; 3. Ningxiang pig; 4. Luchuan pig; 5. Huai pig;

6. Taihu pig; 7. Two black pigs in Jinhua; 8. Famous pigs in Northeast China; 9. Xiang pig; 10, Tibetan pigs.

In addition, at present, it is common to breed and fatten pigs on a large scale by crossing Landrace, Yorkshire and Duroc. As the name implies, the external ternary and the external ternary are all from abroad. The hybrid combination has strong resistance and obvious heterosis (disease resistance, reproductive performance, fattening performance, etc.), so the market is dominated by the external ternary.

Waisanyuan pig

5 About life span

Because different pigs have different constitutions and are classified, their life spans are uneven. However, according to scientific data, the average life span of normal pigs is about 20 years, and the longest record is 50 years.

6 About the sense of smell

Pigeons have an extremely developed sense of smell, and their sensitivity is 2~3 times that of dogs. Some pigs can even sniff out mines buried in the soil with their noses. Pigs can smell black truffles (an expensive plant) growing 25 ~ 30 cm deep underground at a distance of 6 meters. Pigs have a keen sense of smell, and some countries' customs and airports will use trained anti-drug pigs to search for drugs and contraband.

7 About IQ

The average IQ of pigs is between 70 and 85, which is equivalent to children aged 3 to 5. They are more like fools. When others call you a stupid pig, you should think carefully about whether you praise you or not.

8 About the inventory

China's pig breeding accounts for 56.6% of the world's total pig breeding, and its position in the world is very important (that is, once China lacks pigs, the price of pigs around the world will rise). Pork accounts for more than 60% of the domestic meat production and consumption in China. In 20 17, the output value of pig breeding in China was close to10.3 trillion, accounting for about 56.6% of the total output value of domestic livestock and poultry (pigs, cattle, sheep and poultry), and the pig industry was huge.

9 About consumption

China is a big country in pork consumption, and pork dishes and various pork products are even more indispensable delicacies on the table of China people during the Spring Festival. Although China's total consumption has dropped from 57190,000 tons at the peak in 20 14 to 54.89 million tons last year, it still accounts for half of the world's share. That is to say, although China's population is only one fifth of the world's, one catty of every two catties of pork is eaten by China people. The per capita annual pork consumption reaches 40 kilograms (my dear).

What? Ask me why there are so many? Or do you like meat (smiling face)

China's pork consumption and per capita annual consumption (source network, invasion and deletion)