The problem of diarrhea and diarrhea in piglets is quite common. The diarrhea rate is generally about 20-30%, and the mortality rate is about 2-4%. However, in some pig farms, the diarrhea rate of piglets after weaning is extremely high, and may even reach 70-80%. The mortality rate reached 15-20%, causing great economic losses for pig producers.
The diarrhea of ​​weaned piglets generally occurs between 3-10 days after weaning and reaches the climax on the seventh day. Generally auricles or watery diarrhea are formed. Foods that are indigestible and indigestible will soon be dehydrated if they are not discovered and treated in time. And died. The main reasons are: (1) After weaning piglets, maternal antibodies drop sharply, resulting in decreased resistance. (2) The digestive physiology of piglets is not perfect, and it is not suitable for the high gastrointestinal function caused by the high protein feed of the plant protein. In addition, the pH of the gastrointestinal tract is high, and the digestive enzyme activity cannot play its due role and induce diarrhea. (3) Weaning stress, especially environmental stress, when the room temperature difference between day and night exceeds 10 degrees, the diarrhea rate will increase by 25-30%, and the environment with high humidity will also increase the number of diarrhea. (4) Inappropriate feeding methods: over-restricted feeding and excessive feeding, resulting in hunger and overeating diarrhea. (5) Immune response, especially in the case of corn-soybean meal-type diets, and in the case of raw soybean cake containing more anti-nutritional factors, causes late-type allergic reactions in the intestinal epithelial cells and causes watery diarrhea. (6) Gastrointestinal dysbacteriosis. Therefore, in order to reduce the loss caused by the disease, the following measures can be taken:
1. Improve biosafety measures Pregnancy, delivery, nursing homes and finishing houses all implement the "all-in, all-out" system, which is conducive to eliminating the source of infection and cutting off the route of transmission to prevent the cross-contamination of the disease.
The pregnant sows were injected subcutaneously with ivermectin for 14 days prior to delivery, and 0.2-0.3 mg/kg of body weight was dewormed once.
Houses and nursery care should be thoroughly and thoroughly cleaned 10 days before the pigs are swept away, washed repeatedly with high-pressure water, dried, and then sterilized twice with 1% bacterial poison or 100 ml poison (3 ml of water plus 1 ml of liquid) and then used twice. Formalin fumigation 1 time, empty 6 days later into the pig.
The branch house and the nursery should be sterilized twice a week with 0.05% peracetic acid or 0.5% strong disinfectant.
Labor sow 3 days in advance with warm water to clean the whole body, and then use Weikang disinfectant spray disinfection of the pig body and then enter the delivery room to be produced.
All articles, utensils, feeds and personnel entering the delivery room must be sterilized before entering.
2. Improve feeding and management The temperature in the branch house is maintained at 18-20°C. The temperature of the incubator is: 32-34°C for 1-7 days, 30-32°C for 8-12 days, 28°C for 15-30 days.
The tillers should be kept dry, hygienic, cool in winter and cool in summer, free of blood-sucking insects and rodents.
After the sow is completed, the production bed should be cleaned and disinfected; sows' udders and nipples should be scrubbed with 0.1% potassium permanganate solution, and then the nipples should be fixed so that the piglets can eat colostrum. After the birth of the piglet, clean the whole body with a clean sterile gauze and allow it to eat colostrum as soon as possible.
Broken umbilicus, broken tail, cut teeth, playing ear number, etc. should be strictly disinfected with iodine, to prevent infection.
The piglets started at 7 days old and fed them with small amount and multiple feeding methods to exercise their digestive functions. As far as possible in the feed according to 0.2% add only ecological C211 (probiotics, Dalian Sanyi company R & D), can improve digestion and absorption function, improve feed utilization, maintain intestinal flora balance, enhance immunity, prevent diarrhea in piglets.
Full-price feeds should be given to nursing sows to ensure their full nutritional needs, so that piglets can obtain adequate and complete nutritional milk. The sow's milk is too concentrated, and the fat and protein content in the milk is too high. After the piglet has eaten, it is indigestion and can cause the piglets to squat. Sows' thin milk, incomplete nutrition, lack of certain vitamins and minerals, can also cause the occurrence of alum.
Allow piglets to drink enough clean drinking water to prevent eating filthy water and excrement, otherwise it may cause diarrhea.
Piglets were isolated and weaned early. After 28 days of weaning, the sows left the farrowing house. The piglets stayed on the origin bed for 3 days, and then all were transferred to the nursery house 100-200 meters away from the branch house. The group to cut off and control the mutual infection of the source of infection between the population and its offspring.
3 immunization to prevent pregnant sows 20-30 days before childbirth. Each pig was injected with 4 ml of porcine transmissible gastroenteritis and porcine epidemic diarrhoea inactivated vaccine at the Houhai Point. Newborn piglets were passively immunized by taking colostrum to prevent viral diarrhea.
Pregnancy sows are injected intramuscularly 40 days and 15 days before delivery, and piglets E. coli K88, K99, and 987P trivalent inactivated vaccines are given at 5 ml per head. Neonatal piglets receive passive immunity by taking colostrum and can be prevented. Piglets are yellow and white.
Sows were injected with 2 ml (1 head) of diarrhoea mixed bacterins per CR for 6-7 weeks prior to sow delivery. After 3-4 weeks of first administration, 2 ml (1 head) of each head was injected intramuscularly. Prevention of E. coli, Clostridium perfringens type C and its toxins, and rotavirus-induced diarrhea.
Piglet paratyphoid viable vaccine seedlings, according to the head marked by the bottle sign, diluted with cold boiled water into 5-10 ml per head, to wean piglets fed, 50 days of age and then strengthen the immune one time, can prevent piglet salmonellosis .
Porcine Transmissible Gastroenteritis and Rotavirus Disease Combined Live Vaccine: Slaughter of 1 ml every 5 weeks and 1 week before sow immunization and 4 months immunization period. For 7 days before weaning, piglets were given 2 ml per arm and the immunization period was six months.
The above-mentioned vaccines are provided for reference only when preventing and controlling diseases. At present, the use of bacterial seedlings to prevent piglet diarrhea in pig production is limited. Viral vaccines are also selectively used according to the animal epidemic and the actual situation on the farm. The more vaccines are used, the safer they are. The fundamental point is to strengthen scientific management, establish a biosafety system, properly use vaccination, and implement drug care, which can effectively prevent the occurrence and spread of various diseases of piglets.
The diarrhea of ​​weaned piglets generally occurs between 3-10 days after weaning and reaches the climax on the seventh day. Generally auricles or watery diarrhea are formed. Foods that are indigestible and indigestible will soon be dehydrated if they are not discovered and treated in time. And died. The main reasons are: (1) After weaning piglets, maternal antibodies drop sharply, resulting in decreased resistance. (2) The digestive physiology of piglets is not perfect, and it is not suitable for the high gastrointestinal function caused by the high protein feed of the plant protein. In addition, the pH of the gastrointestinal tract is high, and the digestive enzyme activity cannot play its due role and induce diarrhea. (3) Weaning stress, especially environmental stress, when the room temperature difference between day and night exceeds 10 degrees, the diarrhea rate will increase by 25-30%, and the environment with high humidity will also increase the number of diarrhea. (4) Inappropriate feeding methods: over-restricted feeding and excessive feeding, resulting in hunger and overeating diarrhea. (5) Immune response, especially in the case of corn-soybean meal-type diets, and in the case of raw soybean cake containing more anti-nutritional factors, causes late-type allergic reactions in the intestinal epithelial cells and causes watery diarrhea. (6) Gastrointestinal dysbacteriosis. Therefore, in order to reduce the loss caused by the disease, the following measures can be taken:
1. Improve biosafety measures Pregnancy, delivery, nursing homes and finishing houses all implement the "all-in, all-out" system, which is conducive to eliminating the source of infection and cutting off the route of transmission to prevent the cross-contamination of the disease.
The pregnant sows were injected subcutaneously with ivermectin for 14 days prior to delivery, and 0.2-0.3 mg/kg of body weight was dewormed once.
Houses and nursery care should be thoroughly and thoroughly cleaned 10 days before the pigs are swept away, washed repeatedly with high-pressure water, dried, and then sterilized twice with 1% bacterial poison or 100 ml poison (3 ml of water plus 1 ml of liquid) and then used twice. Formalin fumigation 1 time, empty 6 days later into the pig.
The branch house and the nursery should be sterilized twice a week with 0.05% peracetic acid or 0.5% strong disinfectant.
Labor sow 3 days in advance with warm water to clean the whole body, and then use Weikang disinfectant spray disinfection of the pig body and then enter the delivery room to be produced.
All articles, utensils, feeds and personnel entering the delivery room must be sterilized before entering.
2. Improve feeding and management The temperature in the branch house is maintained at 18-20°C. The temperature of the incubator is: 32-34°C for 1-7 days, 30-32°C for 8-12 days, 28°C for 15-30 days.
The tillers should be kept dry, hygienic, cool in winter and cool in summer, free of blood-sucking insects and rodents.
After the sow is completed, the production bed should be cleaned and disinfected; sows' udders and nipples should be scrubbed with 0.1% potassium permanganate solution, and then the nipples should be fixed so that the piglets can eat colostrum. After the birth of the piglet, clean the whole body with a clean sterile gauze and allow it to eat colostrum as soon as possible.
Broken umbilicus, broken tail, cut teeth, playing ear number, etc. should be strictly disinfected with iodine, to prevent infection.
The piglets started at 7 days old and fed them with small amount and multiple feeding methods to exercise their digestive functions. As far as possible in the feed according to 0.2% add only ecological C211 (probiotics, Dalian Sanyi company R & D), can improve digestion and absorption function, improve feed utilization, maintain intestinal flora balance, enhance immunity, prevent diarrhea in piglets.
Full-price feeds should be given to nursing sows to ensure their full nutritional needs, so that piglets can obtain adequate and complete nutritional milk. The sow's milk is too concentrated, and the fat and protein content in the milk is too high. After the piglet has eaten, it is indigestion and can cause the piglets to squat. Sows' thin milk, incomplete nutrition, lack of certain vitamins and minerals, can also cause the occurrence of alum.
Allow piglets to drink enough clean drinking water to prevent eating filthy water and excrement, otherwise it may cause diarrhea.
Piglets were isolated and weaned early. After 28 days of weaning, the sows left the farrowing house. The piglets stayed on the origin bed for 3 days, and then all were transferred to the nursery house 100-200 meters away from the branch house. The group to cut off and control the mutual infection of the source of infection between the population and its offspring.
3 immunization to prevent pregnant sows 20-30 days before childbirth. Each pig was injected with 4 ml of porcine transmissible gastroenteritis and porcine epidemic diarrhoea inactivated vaccine at the Houhai Point. Newborn piglets were passively immunized by taking colostrum to prevent viral diarrhea.
Pregnancy sows are injected intramuscularly 40 days and 15 days before delivery, and piglets E. coli K88, K99, and 987P trivalent inactivated vaccines are given at 5 ml per head. Neonatal piglets receive passive immunity by taking colostrum and can be prevented. Piglets are yellow and white.
Sows were injected with 2 ml (1 head) of diarrhoea mixed bacterins per CR for 6-7 weeks prior to sow delivery. After 3-4 weeks of first administration, 2 ml (1 head) of each head was injected intramuscularly. Prevention of E. coli, Clostridium perfringens type C and its toxins, and rotavirus-induced diarrhea.
Piglet paratyphoid viable vaccine seedlings, according to the head marked by the bottle sign, diluted with cold boiled water into 5-10 ml per head, to wean piglets fed, 50 days of age and then strengthen the immune one time, can prevent piglet salmonellosis .
Porcine Transmissible Gastroenteritis and Rotavirus Disease Combined Live Vaccine: Slaughter of 1 ml every 5 weeks and 1 week before sow immunization and 4 months immunization period. For 7 days before weaning, piglets were given 2 ml per arm and the immunization period was six months.
The above-mentioned vaccines are provided for reference only when preventing and controlling diseases. At present, the use of bacterial seedlings to prevent piglet diarrhea in pig production is limited. Viral vaccines are also selectively used according to the animal epidemic and the actual situation on the farm. The more vaccines are used, the safer they are. The fundamental point is to strengthen scientific management, establish a biosafety system, properly use vaccination, and implement drug care, which can effectively prevent the occurrence and spread of various diseases of piglets.
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