1 Differences in the mother's body and in the outside world (1) Nutrients and oxygen are supplied to the mother's body to supply nutrients and oxygen, and then the waste is taken away; after birth, oxygen and nutrients are supplied by their own respiratory system and blood circulation system, and nutrition is obtained through their own intake. (2) It is an aseptic environment in the mother's body and is threatened by various microorganisms after birth. (3) Constant temperature in the mother's body and self-regulation after birth. 2 Physiological conditions after birth (1) Fast growth and strong metabolism. (2) Underdeveloped digestive system and impaired digestive function. (3) Poor body temperature regulation and poor cold stress. (4) lack of immunity, easy to die (have immunity after eating colostrum, 4 weeks of age after the immunoglobulin is not green and blue, prone to diarrhea, is the most critical immunization period). 3 Care for newborn piglets (1) Fix the teat and eat enough colostrum (you must let the piglet eat colostrum within 2-3 hours after birth, develop the habit of fixing the nipple and sucking milk, and manually assist in fixing the teat to make the piglet eat well within 2–3 days) Eat colostrum). (2) Keep warm and prevent cold. (3) Strengthen management to prevent death. (4) According to the actual situation fostering and merging, the principle: the date of birth should be similar, the best is not bad before and after 3 days, the weight is relatively uniform, so as not to cause bullying small uneven development; best eat sows colostrum, or eat If the colostrum of the foster sow has a low survival rate, the sow’s milk should be applied to the body of the foster piglet, or the nest must be a gas of the same odor; when the piglet is hungry, the hungry animal’s mental state is accelerated. The foster pig recognizes the sow. 8 Inch Biometric Tablet,Industrial Rugged Android Tablet,Portable Fingerprint Tablet,Rugged Portable Time Attendance Tablet Chongqing Huifan Technology Co.,Ltd. , https://www.hfsecuritytech.com