The common symptoms of respiratory diseases during childcare are: sneezing, coughing, and wheezing. Most of them suffer from abdominal breathing. They gradually become thin, dark and long-haired, and have pale skin. The intake of food decreases, and they prefer lying and reluctant to walk around. Once it is obviously emaciated, treatment is often ineffective and more deaths go. In colder seasons, for indoor insulation, poor ventilation, poor air quality, and relatively high incidence of respiratory diseases, the air is fresher in the warmer spring and summer season, but respiratory diseases are still occurring, with the most common , And more difficult to control. As far as the domestic situation is concerned, respiratory diseases mainly consist of mycoplasma infections, mixed infections with Pasteurella, Borrell, Streptococcus, Actinobacillus pleuropneumoniae, and Escherichia coli. Some farms also have the possibility of infection with pseudorabies virus, swine fever virus, blue-ear virus, and even the infection of the circovirus (PCV). The necropsy lesions are mostly pathological changes of pneumonia, pleuropneumonia, pericarditis, and even peritonitis. Pulmonary lobe, heart flesh changed, dorsal symmetry of the temporal lobe bleeding or abdominal consolidate. In severe cases, the entire lung becomes constricted, the specific gravity increases, cellulose from the tip leaf, heart leaf, or temporal lobe exudes, or the entire lungs adhere to the pleural fibrinous tissue, the pulmonary interstitial edema, patchy, elastic; pericardial effusion or pericardium and heart Adhesion; pus in the abdomen or pus on the surface of the liver. The incidence of the disease varies from farm to farm. More than 40% of winter high-incidence, low hair about 15%; about 10-20% warm season, but the mortality rate is high. Once there is a high incidence of disease, the production status of the pig during the entire period of conservation will be significantly reduced, the growth rate will be slowed down, the feed remuneration will be reduced, the slaughter time will be delayed, and the drug costs will increase. Therefore, to control this disease, it is necessary to give early medication and early prevention. It is recommended to take the following measures: Prevent early infection
1). Sows are given medicines before and after childbirth. First is to reduce mycoplasma content in the respiratory tract, to reduce the chance of early infection of mycoplasma in the delivery room of the sow; second is to clear the bacteria in the birth canal, such as streptococcus, E. coli Salmonella, etc., to prevent early infection during childbirth. Common drug programs are:
80% of the original net 125g + doxycycline 100g, or 80% of the original net 125g + sulfisoxazole 500g + TMP 100g + sodium bicarbonate (baking soda) 1000g, stir in 1 ton of material , feeding 1 week before delivery and 1 week after delivery.
2). Since the piglets are 14 days old, sensitive drugs drink or feed to control infections such as Mycoplasma, Streptococcus, and Pasteurella.
Commonly used programs are as follows:
80% of the original net 190g + amoxicillin (pure powder) 150g + 10% colistin sulfate 1000g mix 1 ton of material, continuous feeding to the refueling or 100% of the original net 100g + amoxicillin 100 grams, add 1 ton of water, continue to drink water for 1 week every other week, pulse medication until re-feed (about 35-40 days of age in piglets).
2. Continuing medication in the nursery phase to control mixed infection of the respiratory tract and reduce the emergence of thin piglets
80% of the original net 100 grams + 150 grams of doxycycline or 150 grams of amoxicillin, stir 1 ton of material, feeding continuously until the transfer group into the growth and finishing house.
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