How many years can a pig live at most?

English name: pig, swine, hog pigs are omnivores, generally referring to domestic pigs. The pig is the end of the zodiac, also known as the sea. Pig breeding in China has a history of at least 5600-6080 years. Pigs have short fat limbs, docile temperament, strong adaptability, easy feeding and rapid reproduction, with black, white, sauce red or black and white flowers. Pigs can be bred 5- 12 months after birth, and the gestation period is about 4 months. The average life span of pigs is 20 years. One feeds on domestic fat animals, cute when I was a child, scary when I grew up, big nose, big ears, eating more and growing fast. It is a misunderstanding that pigs always seem to be considered stupid. Pigs are actually very smart animals, seemingly simple and honest, but actually a little short-tempered. Now there are piglets as full-time pets. They are really cute. Because pigs are clumsy in shape and movement, people use pigs to describe clumsy people. Recently, however, through long-term observation and research on the living habits of pigs, it has been proved that pigs are kind, docile and intelligent animals. It is neither as obedient as cattle and horses, nor as overbearing and fierce as goats; Neither ungrateful like a cat, nor flattering like a dog. In many ways, dogs are not as clever as pigs! After training, pigs can not only master various skills and movements like dogs, but also have shorter training time than dogs. Some specially trained pigs can dance, drum and swim; Some will push the car straight; Some clever pigs can also be "pigs and dogs"; Some people can even sniff out mines buried in the soil with their noses. Pigs can also be guards like dogs. In the United States, some farmers use pigs to defend the land of the manor, and also bite strangers who have strayed into the manor. Another farmer raised two pigs to guard the pond instead of people in order to prevent cattle from being bitten by snakes when drinking water by the pond, and achieved good results. Pigs can not only prevent snakes, but also like to eat them. Scientists have proved through experiments that it is scientific to raise pigs to prevent snakes, because pig fat is thick, which can neutralize snake venom and prevent snake venom from entering blood vessels. The sense of smell of pigs is also very developed. In some parts of France, an expensive edible fungus black truffle grows underground. Local farmers regard pigs as powerful assistants for harvesting black truffles. Pigs can smell black truffles growing 25-30 cm underground from 6 meters away. Although dogs can also undertake this job, it is much more difficult to train dogs than pigs, and they have to be searched every day. If they are separated by a few days, they will forget. In this respect, pigs are much more capable than dogs. Even if it only searches once a week, it won't forget the skills it has learned. Besides, the pig is still a player on the sports field! A few years ago, at the national farm exhibition held in the United States, a unique pig race was held. When the referee gives the order, the pigs with labels will run one after another, and they will make the final sprint when they are near the finish line! You Zhu is called "Wu Jin", "Black-faced Lang" and "Black Lord". According to reports from the ruling and opposition parties, people in Hongzhou in the Tang Dynasty raised pigs and became rich, which was called Wujin. The Tang Dynasty's Miscellaneous Notes on Yunxian quoted the Old Edition of Chengping: "A black-faced lang, also known as a pig." On the land of China, as early as the matriarchal clan commune period, domestic animals such as pigs and dogs have been raised. The pottery pigs unearthed from Hemudu Neolithic cultural site in Yuyao, Zhejiang Province are very similar to the current domestic pigs, indicating that pigs had been domesticated at that time. Before the Spring Festival, pigs are usually killed before the 25th day of the twelfth lunar month, and the 26th day is a knife-closing day. No machetes can be used. Killing pigs in Zhejiang province should pay attention to "clearing with one knife", that is, killing with one knife, otherwise it is considered unlucky. When entering the knife, the butcher will say "born into the body", and children and women can't watch it. After killing, put the paper stained with pig blood in the corner of the room or in the pigsty to show that the pig is not dead. Pig hair should be filled with blowtorch. After all the boiling water is put into the bucket, the lower end of the blowtorch is immersed in the soup bucket, and the upper end is blown with the mouth and around the bucket, indicating that the pig will grow fast and big in the future. When Joe wears pig hair, he should leave a fast hair on the pig's head and tail, which means "there is a head and a tail", and then put the whole pig on the stool. First, the pig's head faces outwards, leaving pig hair to burn incense and thank heaven and earth. Cut the pig into two pieces and marinate the rest in the jar for later use. Tianjin, Hebei and other places have "Fat Pig Arch" festival window grilles, which are cut with black wax paper. Pigs carry a cornucopia, and put one on the left and one on the right when pasting it, indicating the intention of making a fortune. Wedding custom of sending pig's trotters in Shaanxi. The day before the wedding, the man will give four Jin of pork and a pair of pig's trotters, which is called "gift hanging". After the woman leaves the "ritual hanging", she will also return the pig's front hoof. On the second day after marriage, husband and wife should take double dried noodles and pig's hind hoof back to their parents' house, leave the dried noodles and return the hind hoof, commonly known as "hoof comes, hoof goes", which means that they will have close contacts in the future. On the wedding day, both men and women of the Bulang nationality in Xishuangbanna, Yunnan Province will kill pigs and treat them. In addition to treating guests, it is also necessary to cut pork into small pieces and string them with bamboo poles and distribute them to all families to show the meaning of "blood relatives". Han people used to have a folk exorcism activity of "killing sow ghosts". Whenever there is a disaster or misfortune at home, the elders at home will set up incense tables to worship the sow ghost and make a wish to the gods to exorcise evil spirits. When offering sacrifices, you should choose the auspicious day of the zodiac, kill the old sow, and put the extra parts, hooves, liver, intestines and lungs in a basket and put them in the middle of the room. The host will burn incense and worship. After the sacrifice, the internal organs will be cooked and eaten separately. Folk believe that "kill a sow ghost and drive away an evil." The Wa people in Yunnan have the divination custom of "pig bile divination". After killing the pig, judge whether it is good or bad according to the pig bile. If the gallbladder lines are up and down, there is more water in the gallbladder, which is auspicious; The gallbladder lines are left and right, and there is little water in the gallbladder, which is a hidden divination. Generally used for major events, divination is carried out by wizards.