Many medical sutures also come from pigs. Because pigs are similar to humans in anatomy and physiology, they are widely used in medical fields such as burns, tumors, immunity and surgery. Especially in recent years, the research on xenotransplantation of pigs as experimental animals has made rapid progress.
Pig viscera and glands are important raw materials for pharmaceutical industry. Such as pig pituitary gland, pancreas, pineal gland, thyroid gland, adrenal gland, parathyroid gland and bile, can be made into corresponding biochemical products or medical products. For example, pituitary gland can be used to produce oxytocin, posterior pituitary gland can be used to treat diabetes, heart can be used to produce heart extract, and bile can be used to produce bile calcium salt and pertussis preparation.
2. Pig manure is an organic fertilizer.
Pig manure can not be fertilized until it is composted. Stacking treatment is an aerobic fermentation. Microorganisms in manure will generate a lot of heat in the process of decomposing organic matter. Because the central temperature of the manure pile is enough to kill pathogenic microorganisms and parasites in the manure, the decomposed manure is basically odorless, and complex organic matter is decomposed into simple compounds that are easily absorbed by plants. ?
Extended data
The origin of pigs
According to paleontologists, pig fossils first appeared in Eocene strata in Europe (56 million to 33.9 million years ago). It can be said that the history of pigs is even older than that of humans.
After Miocene (23.03 million to 5.333 million years ago), Pliocene (5.553 million to 2.58 million years ago), Pleistocene (2.58 million to 1. 1.70 million years ago), and then Holocene (1.
After tens of millions of years of development, the swine family has evolved into three subfamilies, namely, swine subfamily, sickle-toothed swine subfamily and swine subfamily.
At that time, the three major pig families were rampant in Eurasia and Africa, while the subfamily and sickle-toothed pig were tall and fierce, with extremely long fangs, and they were beasts on land at that time. Today, the two fiercest families of swine have become extinct, leaving only the subfamily of swine. Porcine subfamily is the most primitive pig, and almost all pigs originated from this subfamily.