Winter is the season in which piglets have diarrheal disease. Pig farmers often cannot control the disease and cause piglets to die. To this end, the author combines many years of practical experience, puts forward the following five prevention and control measures, hoping to provide help for everyone.
1, strengthen feeding management
1 Temperature: The suitable temperature for weaning piglets is 22-25°C for 20-30 days, 21-22°C for 30-40 days, 21°C for 41-60 days, and 20°C for 60-90 days. Keep the delivery room and the temperature of the house. In order to maintain the above temperature, wind insulation should be taken into account in winter.
2 Humidity: Humidity in piglets can increase the adverse effects of cold and heat on pigs. Humidity is conducive to the breeding and growth of pathogenic microorganisms and can cause multiple diseases in piglets. The appropriate humidity for weaned pig houses is 65%-75%.
3 Hygiene: Pighouses should be regularly cleaned inside and outside, regularly sterilized, kill germs, prevent infectious diseases, control ventilation and ventilation, keep the air fresh, and reduce the toxic effects of harmful gases on pigs.
4 Feeding: Early forced feeding of piglets and reduction of mother's milk before weaning allows the piglets to perform feed transitions and transitions of feeding methods. The piglets were fed for 3-5 days after weaning, and the average feed intake was 160 g. After 5 days, they were fed freely.
5 drinking water: it is best to install automatic drinking fountains to ensure the supply of clean drinking water, if not enough water will not only affect the normal growth and development of piglets, but also due to drinking water caused by diarrhea.
6 Immunization: Regular immunization of the herd should consider the validity of the vaccine and the potency of the vaccine.
7 Disinfection: daily disinfection of pig farms, regular or irregular barn with pig disinfection, to minimize pathogenic microorganisms in pig farms. Pregnant sows are sterilized with 0.1% potassium permanganate on the breast, nipple, vulva, and ventral side. The confinement personnel and tools should be thoroughly disinfected.
2, reasonable with feed
Under the premise of guaranteeing the necessary amino acids for the growth and development of piglets, the protein level should not be too high, the crude protein content should be controlled within 19%, and the protein feed raw material should be processed or reduced to the best antigenic material, such as 65%-70% of soybeans. After hot ethanol, its antigenic effect can be greatly reduced. The content of vitamins and trace elements in feed must meet the nutritional standards of piglets, especially the content of iron. Breast milk has low iron content. Each piglet needs 3 mg of iron per day, while breast milk can only provide 1 mg, which cannot meet the needs of piglets. Nutritional needs, 0.5-1 ml of intramuscular iron injection 2-3 days after birth can prevent nutritional anemia and diarrhea.
3, reduce all kinds of stress
The body temperature regulation ability of 1-4 weeks old piglets is not perfect, and is greatly influenced by the environment. Especially in winter, attention should be paid to keeping the temperature stable and avoiding temperature fluctuations. Avoid stress caused by noise and keep the pig house quiet. After weaning, the piglets should be kept in the original circle for more than 7 days. The piglets should be kept unchanged within 2 weeks. The feed should be limited within 3-5 weeks. Antibiotics or probiotics should be added to the feed to inhibit the propagation of the bacteria. Avoid suddenly changing feeds and changing feeding procedures. The breeder will try to set aside jobs, standardize operations when immunizing a large group, and reduce stress.
4, for vaccine immunization
Sows were inoculated with E. coli K88, K99, 987P trivalent inactivated vaccines 40 days before and 15 days before sow production; TGE and PED-inactivated vaccines or TGE and PED attenuated vaccines were inoculated at the sea hole 20 days after sow prenatal; The rotavirus attenuated vaccine was used to immunize the sows twice a day before and 15 days after delivery. The piglets were protected by passive immunization. The piglet paratyphoid was first exempted at 30-40 days and the second exemption was 70 days old. Reducing the incidence of paratyphoid in piglets; piglets of red warblers using local seedlings to immunize sows at 28 days and 14 days of prenatal immunization 1 time, 5-10 ml each time, continuously giving birth to sows, because the previous one has been inoculated After the seedlings are passed, they only need to be injected once before birth with a dose of 3-5 ml. The piglets obtain maternal antibodies through breast milk, which enables the piglets to obtain higher immunity.
5, timely drug control
After the piglet is born, before eating colostrum, use 80,000 IU of gentamycin orally, add blood product at 3 days of age, and add a small amount of rehydration salt at 5-6 days of replenishment to prevent the diarrhea of ​​piglets. For the pathogenic diarrhea in the "anti-bacterial anti-inflammatory only stop" principle of drug treatment. In the early stage of the disease, gentamycin may be administered intramuscularly at 80,000 IU per head or kanamycin at an intramuscular dose of 500,000 IU per head per day. Mid-onset, the application of neomycin sulfate + scopolamine mixed oral, the effect is good, or with norfloxacin, norfloxacin, etc., while the use of astringent drugs, such as tannic acid protein, the condition is slightly heavier supplemented with atropine. The key to treatment is replenishment. A cost-effective method is to use oral rehydration salts. In addition to the above methods, piglets with severe disease were intravenously injected with antibiotics, 3 ml of dexamethasone, 2 ml of sodium citrate, and 2 to 4 ml of VC in the input glucose saline solution.
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