Control and treatment of other Pig Diseases (1)

(1) listeriosis in pigs

The disease is a zoonotic disease caused by gram-positive listeria without capsule and spores. It is mainly characterized by meningoencephalitis, septicemia and abortion in pigs.

Symptoms: most of the diseased pigs (especially piglets) showed septicemia with body temperature rising to 42 ℃, depression, anorexia, shortness of breath, cyanosis of head, ear and abdominal skin. The gait is abnormal, the hind limbs sit apart and look at the stars, or turn in circles, spasm, and the hind limbs are gradually paralyzed. After falling to the ground, the limbs move and die within 2-4 days. Pregnant sows cause abortion.

Prevention and treatment:

1. Strengthen nutrition, improve environmental hygiene, and make pigs maintain a high level of anti-infection ability.

2. Isolate sick pigs in time, strengthen the disinfection of pig house and environment, and treat the disease.

(1) streptomycin sulfate or dihydrostreptomycin sulfate 10 mg / kg body weight twice a day for 3-5 days.

(2) ampicillin 4-15 mg / kg body weight, plus gentamicin 1-2 mg / kg body weight, intramuscular injection twice a day for 3 days.

(3) Synergistic sulfadiazine sodium injection (each 10ml contains 1g of SD sodium and 0.2g of TMP) 0.05ml / kg body weight, intramuscular injection, 1-2 times a day for 3-5 days.

(2) Leptospirosis of pigs

The disease is a zoonotic disease caused by pathogenic Leptospira. Mainly occurred in piglets, growing pigs, the source of infection is mosquitoes, insects, rats and so on. Most are recessive infections, a few are acute, characterized by fever, jaundice, anemia, hemoglobinuria, edema, abortion, skin and mucosal necrosis.

Symptoms: chronic edema is common, the prominent symptom is that the subcutaneous edema of the head is very serious and obvious, commonly known as "big head plague"; acute jaundice is rare, mostly occurs in medium and large pigs, mainly manifested as high and sometimes low body temperature, low spirits, yellow staining of conjunctiva, hemoglobinuria or hematuria, dry nose, dry feces into granules. The mother miscarried, there were mummies, and some lactating sows had no breast or mastitis.

Prevention and treatment:

1. Take comprehensive control measures, pay attention to rodent control, hygiene and disinfection, and vaccinate with univalent or multivalent attenuated vaccine when necessary in the epidemic area.

2. When suspected sick pigs are found, they should be isolated, treated or eliminated in time, and attention should be paid to disinfection and cleaning up pollutants.

3. After diseased pigs are found in the herd, the whole herd should be fed with oxytetracycline 0.75-1.5 g / kg feed for 7 days. Streptomycin and penicillin were the first choice for diseased pigs for 3-5 days.

(3) congenital tremor of piglets (jumping or trembling disease)

The pathogen of the disease is congenital tremor virus, which causes local or systemic muscle contracture in piglets shortly after birth.

Symptoms: piglets are normal when quiet after birth, and a movement often shows continuous tremors in the head, limbs and tail, or rhythmic paroxysmal spasms, body tremors, difficulty in movement, and inability to breast-feed. If the nursing is good, the tremor can gradually relieve or disappear and survive after a week.

Prevention and treatment:

1. This kind of suckling pig disease is generally rare, and one sow can have at most one fetus, and the second foetus will never happen again.

2. Strengthening nursing care for sick piglets, keeping the piggery warm, dry and clean, and artificial lactation can make most sick piglets recover.

(4) Porcine eperythrozoonosis

It is caused by Rickettsia-porcine eperythrozoon and shows acute icteric anemia.

Symptoms: typical acute infected sows, often anorexic for 1-3 days, body temperature about 40-41 ℃, occasionally cause breast and vulva edema, breast milk loss or lack of motherhood in lactating sows. Piglets and growing pigs showed high fever, body temperature at 40.5-42 ℃, dyspnea, jaundice, yellow urine, anemia, small spot bleeding under the abdomen, ear root, tail root, etc., and then further expanded, and finally connected into a piece, resulting in skin shedding and secondary infection of other bacteria, resulting in high mortality.

Prevention and treatment:

1. The key to control the disease is to drive away external parasites such as scabies mites and blood lice in pigs, as well as flies, mosquitoes and other flying insects.

2. Drug treatment: the combination of oxytetracycline and organic arsenic has a better effect; in addition, Benir (Xuechongjing) and quinolones also have a good effect on the treatment of the disease.

3. For piglets that have developed this disease, we should also pay attention to iron supplementation and prevent secondary infection. Generally, piglets are injected intramuscularly with 2 ml iron dextran to prevent anemia.

(5) Porcine coccidiosis

The disease is a protozoa caused by Eimeria and Isosporidium parasitized on pig intestinal epithelial cells, which mostly occurs in suckling piglets in warm and humid seasons.

Symptoms: loss of appetite, diarrhea, emaciation, generally lasting 4-6 days, feces liquid or paste, yellow-white, occasionally bloody stool, serious illness can die due to dehydration.

Prevention and treatment:

1. The key to the prevention and treatment of the disease is to remove the coccidia oocysts in the environment and avoid oocysts to pollute the pig house. Disinfection method is generally used to kill oocysts, such as formaldehyde, glutaraldehyde, ethylene oxide fumigation or peracetic acid spray, and the heating flame method has a better disinfection effect.

2. Sows were given amproline at a dose of 25-65 mg / kg body weight one week before delivery and during the postpartum lactation period, mixed or mixed for 3-5 days to prevent and cure diseased piglets.

(6) scabies of pigs

The disease is a chronic skin disease caused by pig scabies. It often occurs in the damp and cold winter and spring.

Symptoms: suffering from local itching of pigs, constantly scratching or rubbing everywhere, dandruff and coat falling off, skin flushing, crusts formed by exudate can be seen. Severe skin wrinkles or cracks, loss of appetite, and gradual emaciation.

Prevention and treatment:

1. Regular deworming, timely isolation and treatment of diseased pigs, and disinfect the enclosure with 5% hot alkali water.

2. Ivermectin or avermectin (pure) 0.3 mg / kg body weight, once subcutaneously injected. Repeat after 7-10 days.

Rub the affected area with 3.0.005% deltamethrin solution and repeat after 7-10 days.

Wipe the affected area with 4.0.05% diformamidine solution and repeat again after 7-10 days.

Wipe the affected area with 5.0.5% mijing (pyrimidyl thiophosphate) emulsion and repeat it again after 7-10 days.

6.1% trichlorfon aqueous solution, wash the affected part, or spray. Repeat once in 7-10 days

7. 1 part of tobacco leaf or stem, add 20 parts of water, soak for 24 hours, rub the affected part after cooking for 1 hour, and repeat again after 7-10 days.