Large temperature swings in autumn allow bacterial diseases to invade, how do you prevent and treat common pig diseases?

    In autumn, sudden cold weather and large day-night temperature differences cause pig diseases to occur frequently. Besides common viral diseases, many bacterial diseases also take the opportunity to invade the body in autumn, leading to a higher incidence rate. Below are the key points for the prevention and treatment of common pig diseases in autumn.

Pigs

    1. Classical swine fever:

    Classical swine fever is a highly contagious disease caused by the classical swine fever virus. Pigs of all ages can be affected, and the mortality rate is high. Sick pigs show elevated body temperature, listlessness, lethargy, poor appetite, alternating constipation and diarrhea, and conjunctivitis. The thin skin at the base of the ears, abdomen and inner thighs often has many bleeding spots or large red spots.

    Prevention and treatment: Standardize the introduction of breeding stock, disinfect regularly, and ensure the immunization program is reasonable and effective. Immediately isolate affected or suspected pigs, treat with anti-classical swine fever serum, or inject a 10-fold dose of classical swine fever vaccine to make the pigs produce interferon. Inject uninfected pigs with lapinized attenuated classical swine fever vaccine. Boars are vaccinated twice a year, sows are injected 7-15 days before mating, and piglets can receive either super-early immunization or one vaccination each at 20 days and 60 days of age depending on the farm situation.

    2. Swine influenza:

    Caused by swine influenza virus, it mostly occurs in late autumn or during weather with sudden temperature changes. It is characterized by sudden onset, coughing, difficulty breathing, fever, sticky secretions from the eyes and nose, and poor appetite. Most affected pigs recover quickly, and it is often called the “source of a hundred diseases.”

    Prevention and treatment: Raise the temperature of the pig house and pay attention to feeding management and environmental hygiene. Analgin + Bupleurum + moroxydine + dexamethasone sodium phosphate + penicillin can be used for treatment.

    3. Streptococcal disease:

    Caused by pathogenic Streptococcus suis, it is divided into the septicemia type, meningitis type, arthritis type, endocarditis type and purulent lymph node type. Affected pigs show elevated body temperature and poor appetite, and different types have different clinical symptoms. The septicemia type and meningitis type are more serious, with high mortality.

    Prevention and treatment: Carry out good feeding management, environmental hygiene and routine vaccine immunization. Streptococcus vaccine can be used for immunization. In epidemic seasons when there is no disease, chlortetracycline or oxytetracycline can be mixed into pig feed. If disease occurs, sulfamonomethoxine, TMP and amoxicillin can be mixed into the feed. For individual affected pigs, inject larger doses of amoxicillin + aminopyrine and sulfamonomethoxine + TMP separately on each side.

Pigs

    4. Yellow and white scours in piglets:

    Caused by Escherichia coli, yellow scour mostly occurs in piglets aged 1-3 days, and white scour mostly occurs in piglets aged 10-30 days. The main symptom is diarrhea. These two kinds of dysentery have different fecal colors, and dehydration causes death, with a relatively high mortality rate.

    Prevention and treatment: Strengthen the feeding management and environmental hygiene of pregnant and lactating sows. Before sows farrow, inject Escherichia coli vaccine. For affected pigs, inject colistin and also administer gentamicin orally. For littermate piglets that are not affected, administer gentamicin orally. Sows with mastitis should be treated promptly.

    In short, pathogens are everywhere. Strengthening feeding management, regular disinfection, reasonable immunization, scientific breeding and careful nursing are the keys to disease prevention.