The role of colostrum and regular milk in piglet health care
The milk secreted within 36 hours after delivery is colostrum, and later secreted milk is often milk. Colostrum and regular milk not only provide sufficient full-price nutrition for the pigs, but also plays a very important role in the prevention and treatment of health care. The antibodies in the sow’s blood cannot enter the fetus through the placenta. Therefore, after the birth of the piglet, the antibody in the body is almost zero and it is in the primary state of immunity. The colostrum contains a lot of antibodies (mother antibodies) that migrate from the sow's blood. Although the antibody is a high-molecular protein, most of it can enter the piglet's blood (IgG) through the intestinal wall as it is, and plays a role in systemic immune resistance. Therefore, piglets must eat enough colostrum, and the disease resistance is strong. The mother-derived antibody is absorbed as such for a limited time, and weakens with the extension of birth time, and terminates within tens of hours after birth. This termination phenomenon is called closing. . Therefore, the sooner the colostrum is eaten, the better. The pig can eat 3 times milk to 4 times within 12 hours after birth, and the total amount reaches 40 ml. The piglets can grow up healthily. A portion of the unabsorbed antibody (sigA), called a local antibody, attaches to the surface of the intestinal mucosa to prevent germs from invading the intestinal tract and act as a local immune response. Therefore, colostrum plays a very important role in the systemic and local disease prevention of piglets. It is very difficult for piglets to eat colostrum to survive. People who lack colostrum or who eat too late have poor disease resistance and are also prone to disease. Only by eating colostrum and having strong resistance to disease can we grow healthily. In addition, after the birth of the pigs, some pathogenic bacteria such as E. coli and Salmonella enter the gastrointestinal tract and rapidly multiply. If the pigs cannot quickly eat colostrum, antibodies in the colostrum cannot inhibit the above-mentioned bacteria from multiplying. Onset, especially diarrhea, so colostrum must be eaten within 12 hours of birth. Although the concentration of antibodies contained in regular milk is much lower than that of colostrum, it still contains certain antibodies. Most of these antibodies are local antibodies (sigA) synthesized by mammary lymphocytes, which are not absorbed by the intestine and can be attached to the intestinal mucosa to prevent bacteria from entering the intestine. It plays a role in local immunity and disease prevention. This is called breast milk immunization. Although diarrhea occurs after weaning, the reasons vary, but loss of breast milk immunity is also an important cause. Dental Sterilizer,Podiatry Sterilizer,Dental Sterilization,Dental Sterilization Equipment ZHEJIANG FOMOS MEDICAL TECHNOLOGY CO.,LTD. , https://www.ifomos.com
Maternal antibodies that migrate from the colostrum to the piglet's blood are reduced at a certain rate and generally lose their protection from 2 weeks to 3 weeks after birth. At this time, the antibodies produced by active lymphocyte immunization of piglets are still low, and the concentrations are low and cannot be produced. Strong protection, so that at the time of passive immunization of maternal antibodies and active immunization of piglets, there must be immune protection. At this time, the ability of the pig to resist infection is very fragile and it is a very dangerous period. The length of this period is positively related to how much colostrum is eaten. Colostrum eats much and this period is short. In order to allow the pigs to get through this period, letting the pigs eat colostrum is the best way.