In summer, the climate is hot, the temperature is high, and the humidity is high. Many diseases of pigs are prone to occur and spread. The cause of the disease is poor sanitation, disinfection and isolation measures are not perfect, and vaccination is not performed according to immunization procedures, so that the pigs cannot produce strong immunity. Insufficient feeding and management, in open or semi-open pig houses, the overheated environment temperature can easily stress the pigs and disturb the normal metabolism of the pigs. In the closed pig houses, due to poor ventilation, harmful gases are seriously exceeded. There are also high temperatures and high humidity, which are conducive to the proliferation of pathogenic microorganisms. Poor feed quality, feeding of mouldy feeds or feeds, etc., can cause a decrease in the constitution of pigs; insects such as mosquitoes, flies and cockroaches can spread disease in summer. Reluctant to add mosquito nets will promote the epidemic of swine fever. All these will cause great economic losses to the pig farms. The author has analyzed the cases of admissions from the Veterinary Hospital of Xingtai City in recent years for reference.

Heat stroke

Suffering from a sudden onset of swine, respiratory compulsions, rapid heartbeat, elevated body temperature, conjunctival hyperemia, foamy mouth, non-feeding, hi drinking, poor mentality, unstable walking, many lying unconscious, coma, severe cases People with epileptic seizures, mental excitement, and fury can usually die within 12 hours, and some of them suddenly die. The rapid and appropriate treatment of mildly sick pigs can gradually heal within 1 to 2 days.

Prevention. (1) Strengthen feeding management. During the hot season, appropriate amount of salt should be added and sufficient cool drinking water should be provided. The pens should be well ventilated and should be shaded with pergola. When you drive out, you should do it in the morning, evening or night, and ask the usual water to spray the pigs. When transporting vehicles and boats, you should not be overcrowded, ventilate, and give more water. (2) After the onset of the pigs, the pig house should be ventilated as quickly as possible, or the sick pigs should be transferred to a cool place, with cold water toppings and chest, and cold water can be used if necessary. At the same time cut the ear tip and tail tip to bled. Take ten drops of water and refreshing drinks. Injection of cardiac stimulant: 10% sodium sulfate coffee 2 ~ 10 ml intramuscular injection. Severe hypoxia can be oxygenated from the nostrils. When the central nervous system is overly excited, sedatives can be used: intramuscular injection of chlorpromazine 2 to 4 ml. In severe water shortage, 200 to 500 ml of normal saline can be intravenously injected. At the same time the use of Chinese herbs better, prescription: Artemisia annua, toon, raw licorice, talc each 20 to 40 grams, Shuijianbi.

Pig allergy

A pathological reaction that occurs when sunlight is applied to pigs after they have eaten photosynthetic weeds (eg, mustard, sorghum, canola, and grey vegetables). The disease is caused by a certain photo-energetic agent in the peripheral circulation of the animal, and after the non-pigmented part of the skin is sensitized, a toxic emergency disease characterized by skin erythema and dermatitis occurs. Mainly manifested as dermatitis. In the ear, neck, face, eyelids, and back of the pig, reddish purple rash patches appeared in the non-pigmented parts of the sun, and then the red-purple rash became yellowish abscesses. The sick pigs were itchy and rubbed around the pens. Irradiation from the sun to the dorsal and ventral skin showed large areas of erythema, rash, skin irritation, increased pain, itching unbearable, rubbing ulceration after the outflow of yellow liquid, exposing bright red granulation surface, dry secretions after the formation of scarring, there are The pharyngeal pustosis of the knot, skin necrosis. The smaller pigs showed excitement, trembling, awkwardness, dyskinesia, paralysis of the hindquarters, and finally coma and death.

Prevention. Stop the weeds immediately and remove the sick pigs to the shade. The principle of treatment is anti-inflammatory, anti-allergic, and the combination of intramuscular injection with the applicator of the affected area and internal medicine. (1) Intramuscular injection of diphenhydramine hydrochloride 10 to 40 mg, once/day; (2) penicillin 400,000 to 1.6 million international units, streptomycin 200,000 to 1 million international units, and antongding 1 to 5 ml, dexamethasone 1 to 5 mg, 1 intramuscular injection, 2 times per day; (3) 0.1 to 1 g for vitamin C, 0.05 g for vitamin B1, 0.5 mg for vitamin B12, and 2 ml for complex vitamin B , 2 times / day; (4) The affected part of the skin is cleaned with 75% alcohol and coated with 10% Yushizhi ointment; (5) The whole group of pigs have oral administration of licorice soup (2 kg of licorice plus 30 kg of water, boiled for 30 minutes, drink the juice, Then add boiling water 2 or 3 times and drink it).

Bristles

Gastrointestinal tract infections are mainly cases of atypical swine fever. More often due to the continuous implementation of the vaccination and the inconsistent effect of the immune effect. The symptoms of atypical swine fever are extremely atypical and the mortality rate is low. After the pregnant sow is infected with the virus, it can cause the fetus to infect through the placenta, causing stillbirths, retained fetuses, mummified fetuses, premature labor, weak or tremulous piglets.

Prevention and control measures: (1) Strengthen feeding and management, and do a good job in environmental sanitation. (2) Routine vaccination, in order to eliminate the interference of maternal antibodies (including other acquired antibodies), increase the vaccination dose (5 to 6 doses/head), piglets were vaccinated once after the weaning vaccine (first free), After 20 to 30 days, one more swine fever vaccine or pig triplets (two exemptions) was given and boosted. The male and female pigs are immunized once every six months. The sow is best given a swine fever vaccine before mating. (3) In case of swine fever, a large dose of swine fever vaccine should be used for emergency vaccination in affected or threatened areas. (4) Isolating pigs quickly, thoroughly disinfecting, and injecting them with high-safety serum, applying antibiotics or sulfa drugs for the prevention and treatment of secondary infections, and applying “virus gram” or “clearance and sepsis agents” for treatment.

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