Pig estrus identification
The best method for estrus identification is to perform when the sow is calm for half an hour after feeding (due to the conflict with the feeding time, it is mainly used to identify the difficult sows), estrus identification is performed twice a day, and once every morning and afternoon. Use a combination of artificial intelligence and boar trials. One-third of all working hours for the breeder should be placed on the estrus estrus identification.
The sow's estrus performance: inflamed vulva, vaginal fluid secretions; move around in the circle, frequent urination; nervousness, poor appetite; pressure back still standing; cross each other to accept the boar cross. There are also estruss that are not obvious. The most effective way to detect estrus is to use the trial boar for the trial of the sow.
Chinese herbal medicine chemistry refers to the science of using modern chemical theories and methods to study the chemical composition of Chinese herbal medicine. The object of Chinese herbal medicine chemistry research is the chemical composition of Chinese herbal medicine. The chemical composition of Chinese herbal medicine is very complex, usually sugar, Amino Acid, protein, oil, wax , enzymes, pigments, vitamins, organic acids, tannins, inorganic salts, volatile oils, alkaloids, glycosides, etc. Every Chinese herbal medicine may contain multiple ingredients. Among these ingredients, some of them have obvious biological activity and play a medical role, and are often called active ingredients, such as alkaloids, glycosides, volatile oils, amino acids, etc. The reason why Chinese herbal medicine has medical effects is mainly due to the active ingredients it contains. In addition to many active ingredients of Chinese herbal medicines that have been studied in the past and have been widely used, such as berberine (berberine), which is Antibacterial and anti-inflammatory in Coptis chinensis, ephedrine, which is antiasthmatic in Ephedra, and reserpentine, an antihypertensive ingredient in Rauwolfia, In recent years, more active ingredients of Chinese herbal medicines have been discovered one after another at home and abroad, especially in terms of biological active ingredients for anti-tumor, treatment of cardiovascular diseases and chronic bronchitis. Other ingredients are commonly found in Chinese herbal medicine, but usually have no biological activity and no medical effect, and are called "ineffective ingredients", such as sugars, proteins, pigments, resins, inorganic salts, etc.
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