Approximately 1,480,000,000 slaughtered worldwide per year.
Πηγή/2018 https://ourworldindata.org/grapher/animals-slaughtered-for-meat
Pigs are very playful and intelligent animals. Research suggests that they are even more intelligent than dogs.
Unfortunately, in a factory setting, pigs are confined to concrete boxes, or in cages with steel bars. As is true for most farmed animals, female pigs are the ones subjected to the most intense forms of torment. After giving birth, they are forced into gestation crates, where they lay on their side on the concrete floor, for 24 hours a day, feeding their young non – stop and completely unable to move. Shortly after birth, they are violently separated from their young.
Most newborn piglets are intended for fattening. The procedure is as follows: while they are still small, their teeth are removed, their tails are cut off, and they are castrated without the use of anesthetic. Soon after, they are hoarded into metal boxes with concrete floors, where the conditions are so overwhelming, that many of them develop neurotic behaviors and various mental issues, as a result of which they often attack one another. Respiratory infections are very common, due to the ammonia produced from keeping such a large number of animals cooped up in small spaces, where they are forced to stand on grills above their feces and urine. Finally, the fattening process itself puts a tremendous amount of pressure on the animals’ bodies, leading to various health issues, including arthritis. Those who are able to survive these terrifying conditions… are sent to the slaughterhouse to be killed and dismembered.