What are the common pig diseases and treatment methods from May to August?

In pig farming, high stocking density, poor ventilation and heat relief measures, improper feed formulation, poor hygiene management, weak basic immunity, inadequate disinfection measures and lax epidemic prevention and isolation measures can all increase the chance of pig diseases. So what are the common pig diseases and treatment methods from May to August?

1. Heatstroke and fighting

In summer, the weather is hot, and pigs are prone to heatstroke;

Due to insufficient drinking water, poor ventilation and so on, fighting may also occur.

First aid measures:

First, the heatstroked or bitten pigs should be quickly moved to a cool, well-ventilated place

1. Cold water therapy:

Pigs with heatstroke generally have an elevated body temperature. Pour cold water over the neck and body surface of the heatstroked pig, or use cold water for rectal perfusion to cool the heatstroked pig, until the sick pig's body temperature drops to 38°C-39.5°C.

2. Bloodletting therapy:

After a pig suffers acute heatstroke, it should be quickly moved to a cool, well-ventilated place. Blood can be let from the tip of the ear or the tip of the tail of the heatstroked sick pig. If needed, 0.9% normal saline can be given by intravenous drip at 200-500 milliliters.

3. Use Glacier VC, 2000 jin in drinking water, for free drinking.

2. Gastrointestinal bloating

Due to the influence of summer temperature and humidity, pigs are susceptible to bloating disease caused by Clostridium welchii.

First aid measures:

1. Treatment of sick pigs with mild bloating and restlessness:

For individual sick pigs, use metronidazole and sodium bicarbonate by intravenous drip, intramuscular injection of lincomycin (0.1 milliliters per kilogram of body weight) and amikacin (0.1 milliliters per kilogram of body weight), 1-2 times a day, add electrolytic multivitamins to the feed, and feed the sick pigs until about 50% full.

For the group, mix spectinomycin-lincomycin into the feed for 5-7 consecutive days.

2. Treatment of obvious bloating:

Between the second-to-last and third-to-last ribs on the left side of the sick pig, at a position parallel to the back, insert a long needle to release gas. After the pig's belly becomes smaller, inject 10% lincomycin (0.1 milliliters per kilogram of body weight) and 10% amikacin (0.1 milliliters per kilogram of body weight) at the deflation site, and give metronidazole and sodium bicarbonate by intravenous drip.

3. Vaccine reactions

In hot weather, vaccine reactions are more likely to occur during vaccine immunization.

Manifestations: body temperature rises to 40-41.5°C, the whole body turns red, vomiting, foaming at the mouth, shivering, convulsions, panting, and rapid breathing.

First aid methods:

1. For mild allergic reactions:

Avoid pigs crowding and squeezing together, and strengthen ventilation. Anti-allergy injectable drugs may not be needed; add vitamin C, electrolytic multivitamins and glucose to drinking water for free drinking.

2. For moderate and severe allergic reactions:

They generally occur about 20 minutes after vaccine injection. After injection, observe the pigs' condition. Once an allergic reaction is found, desensitization first aid measures should be taken promptly.

(1) When body temperature is normal, intramuscular injection of vitamin C 0.2-0.5 grams, adrenaline injection 1-2 milliliters or dexamethasone 4-12 milligrams can be given. In severe cases, inject the same dose again after 6-8 hours, and it will gradually return to normal.

(2) When body temperature exceeds 40°C, intramuscular injection of aminopyrine 50-200 milligrams and dexamethasone 4-12 milligrams can be used.

4. Moldy feed poisoning

In summer, the weather is stuffy and hot, feed is prone to becoming moldy, which easily causes mycotoxin poisoning in pigs.

After poisoning, piglets show splayed legs and red and swollen vulva;

Growing and finishing pigs have poor appetite, rough hair coat, and varying degrees of diarrhea;

Empty sows do not come into heat and repeatedly fail to conceive;

Pregnant sows have edema of the vulva and vagina, and in severe cases vaginal prolapse, enlarged udders, premature birth, stillbirth, miscarriage and weak piglets, etc.

First aid methods:

Immediately stop feeding moldy feed, add a mold remover or mycotoxin decomposer to the feed for 10-15 consecutive days;

Adding glucose to drinking water has the effect of protecting the liver and kidneys.

5. Summer susceptibility to bleeding and difficult labor

In summer, sows have a relatively high probability of difficult labor. Correct first aid measures must be taken to ensure that sows with difficult labor do not die from it.

First aid methods:

Some sows have difficult labor due to weak uterine contractions. In the early stage of difficult labor, we can use oxytocin 10-50 units by intramuscular injection to promote uterine contractions in the sow and facilitate delivery. If the sow still has not delivered 1-3 hours after oxytocin use, it means the sow no longer has uterine contractions, and manual assistance first aid should be used.

After thoroughly washing the arms with soapy water, rinse off the soapy water with cold boiled water, put on disposable sterile long-arm gloves and apply lubricant, then bring the five fingers together (trim the nails short so as not to scratch the birth canal), gently rotate in the birth canal, and slowly extend into the birth canal.

If you feel that the piglet is stuck at the uterine opening, if you feel the head, you can spread the five fingers apart, place the index finger and middle finger behind the piglet's two ears, bring the thumb, ring finger and little finger together, and slowly pull the piglet out. If you feel the hind limbs, also spread the five fingers apart, place the pig's two hind limbs respectively between the index finger and middle finger and between the middle finger and ring finger, then bring them together and gently pull the piglet out.

After pulling it out, immediately clear the mucus from the piglet's mouth and nose, and promptly ensure warmth and suckling of colostrum; for the sow, intramuscular injection of houttuynia (0.1 milliliters/kilogram) + ceftiofur (5 milligrams/kilogram), add Yimu Shenghua powder to the feed to prevent infection, and add electrolytic multivitamins to drinking water to resist stress and improve resistance.