Who can help me see, there is a pig that doesn't come after a fever, and there is nothing wrong with its limbs. His stool is sweet and his urine is yellow. It's been over a month.

According to the symptoms described, I can't judge what is the cause, because there are many reasons for pig fever, such as swine fever, swine flu, transmissible gastroenteritis, pseudorabies, Japanese encephalitis, pneumonia, piglet paratyphoid and so on. Here is a brief introduction to the symptoms and prevention methods of these pig diseases for your reference.

First, swine fever. This is an acute infectious disease caused by virus. This disease is highly contagious and the mortality rate is extremely high. Pigs of all ages can occur all year round. The disease is mainly transmitted through the digestive tract. It usually takes 2- 10 days to get sick.

Symptoms: the most acute type: sudden onset, high body temperature (4 1-42℃), no obvious symptoms and quick death.

Acute type: the body temperature rises to 40.5-42℃ for a long time. Loss of appetite or stop eating, mental depression, easy to sleep, fear of cold, crowded into a pile or burrowing. Standing, walking, hunchback, weakness of limbs, slow movement and unstable swing. The conjunctiva is red and the secretion is swollen. Constipation first, then diarrhea. There are purple bleeding spots at the root of the ear, abdomen and inside of upturned limbs that do not fade with finger pressing. Boar foreskin accumulates urine, and when squeezed, white, turbid and smelly urine flows out. The sick pig died within a week.

Chronic type: acute immortality becomes chronic. Sick pigs are emaciated, anaemic, weak all over, often prone to lie down, walk unsteadily, and sometimes have mild fever, constipation and diarrhea alternately, which is generally difficult to recover.

Prevention and treatment: there is no specific medicine, mainly relying on prevention.

1. Vaccination against classical swine fever should be carried out in spring and autumn every year. It is effective to vaccinate piglets before feeding.

2, pigsty, utensils and so on with 2% caustic soda or 20% lime milk or 30% plant ash water disinfection. Sick pigs should be isolated and dead pigs should be buried or burned.

3. Perseverance and self-reliance. Pigs purchased from other places should be injected with swine fever vaccine and observed in isolation for 3 weeks before they can live in groups without disease.

Second, swine flu. It is an acute and highly infectious disease caused by swine flu virus. Often sudden onset, and soon spread to the whole pig herd. Generally benign, the course of disease is short, it can heal itself in a week or so, and it can be fatal when there are complications. All kinds of pigs are susceptible to this disease, especially the improved pigs abroad. This disease often occurs in the cold and wet season when the weather changes suddenly, and is often endemic.

Symptoms: The body temperature of sick pigs rises to 40-465438 0.5℃, sometimes reaching 42℃. Loss of appetite or loss of appetite, mental depression, muscle and joint pain, frequent lying on the ground, rapid breathing, paroxysmal spasmodic cough, dry stool, mucus secretion in eyes and nose.

Prevention and control: In rainy and humid seasons and climate change, we should pay attention to strengthening feeding management, keeping the pigsty dry, clean, cold-proof, warm, regularly deworming, supplementing vitamin-rich feed, and disinfecting the pigsty with 10-20% lime milk.

Treatment: There is no specific medicine.

1, antipyretic and analgesic drugs: intramuscular injection of 30% Anemone 3-5ml, or compound quinine injection 5- 10ml, or Bupleurum injection 2-4ml.

2. Control secondary infection: antibiotics and sulfonamides have no therapeutic effect on this disease, but can reduce complications.

3. Radix Bupleuri19g, Rhizoma Smilacis Glabrae13g, Pericarpium Citri Reticulatae19g, Herba Menthae19g, Flos Chrysanthemi18g, Herba Perillae16g, and Rhizoma Zingiberis Recens as seasoning, and decoct in water once.

4. Take10-15g of Flos Lonicerae, Fructus Forsythiae, Ping Huang, Radix Bupleuri, Pericarpium Citri Tangerinae and Radix Glycyrrhizae for oral administration.

Third, swine infectious gastroenteritis. It is an acute and highly contagious infectious disease caused by coronavirus. The disease can occur in pigs of all ages all year round, but it is most common in late autumn, winter and early spring, and less common in summer.

Symptoms: The incubation period of the disease is short, usually 15- 18 hours, and it spreads rapidly, and can spread to the whole group within a few days. Pigs' body temperature rises, their stomachs swell, their appetite drops or they don't eat. Watery diarrhea, discharge of milky white, yellowish brown or green foul-smelling feces, rapid dehydration of sick pigs, sunken eye sockets and weight loss. Piglets die within 2-7 days. Adult pigs recover from diarrhea in 5-8 days, and the mortality rate is not high.

Prevention: In order to control the occurrence of the disease, we should be careful not to introduce pigs from epidemic areas. After finding the disease, uninfected pigs should be isolated quickly, and sick pigs should be isolated and treated immediately. Piggery, utensils, vehicles, corridors, etc. It should be disinfected with alkaline disinfectant to limit people and animals such as dogs and cats from coming out.

Treatment: For sick piglets, chloramphenicol can be injected intramuscularly, streptomycin can be taken orally, and a stomach-invigorating drug mixed with lactase, pepsin and sulfadiazine can be taken orally. Cases of diarrhea and dehydration caused by injection or oral rehydration. Strengthening the feeding management of adult pigs, increasing the amount of concentrate or changing to digestible porridge can generally be tolerated in a few days.

Fourth, pseudorabies. It is an acute infectious disease of livestock caused by pseudorabies virus. This disease naturally occurs in cattle, sheep, dogs, cats, rats and pigs. This is a very fatal disease to other animals except adult pigs. Generally, it is not contagious. Sick pigs, poisonous pigs and poisonous rats are the important sources of infection of this disease. The disease is mostly sporadic, sometimes endemic, and mostly occurs in winter and spring.

Symptoms: The incubation period is 3- 15 days. The main manifestations are elevated body temperature, depression, rapid weakness and coma. 12-24 hours later, septicemia died, and the mortality rate could reach 95%.

The body temperature of older suckling piglets rose to 465438 0-42℃. Sick pigs are extremely listless, anorexia, occasionally vomiting and diarrhea, and when the central nervous system is invaded, typical Sichuan neurological symptoms appear. The sick pig is excited and restless, running around, feeling around, losing consciousness, turning around, and opening its forelimbs or hind limbs. Followed by paroxysmal spasms or seizures. The sick pig lies on its side, its head leans back, and its limbs are convulsed, and the length of each attack is uncertain. With the development of the disease course, incomplete paralysis or paralysis occurs, first nerve and laryngeal nerve paralysis, sick pigs can not swallow, salivate, have difficulty breathing, become blind, and then muscle paralysis occurs. A few recovered pigs have symptoms such as blindness and head and neck bending. The sick pig was lying on the ground with unsteady gait. Piglet's voice is hoarse in the later stage. 4-6 days later, he died of fatigue.

Pigs over four months old only have flu-like symptoms, such as vomiting and diarrhea, and have no neurological symptoms, and they are cured in 3-4 days. The recovered pigs can carry the virus 1 month. Some pregnant sows miscarry or give birth to stillbirths.

Prevention and control: deratization in pig farms is of great significance to prevent the disease. Once the disease occurs, the external environment such as sick animals, contaminated utensils and pens should be isolated and disinfected with 2% caustic soda water or 10-20% lime milk.

5. Japanese encephalitis in pigs. It is a seasonal infectious disease caused by Japanese encephalitis virus. Infected by mosquito bites is more popular in summer and autumn. Pigs aged 5-6 months have more diseases.

Symptoms: sudden onset, high fever of 40-465438 0℃, continuous. Sick pigs are depressed, easy to lie down, their appetite decreases, their desire to drink alcohol increases, and their feces dry up; Urine is dark yellow, and some sick pigs have obvious neurological symptoms, mainly manifested as grinding teeth, virtual chewing, foaming at the mouth, rushing forward and turning in circles. Some sick pigs have mild paralysis of hind limbs, stumbling and joint swelling. Pregnant sows often miscarry, especially primiparous sows, and most of the fetuses are stillbirths and mummies. Boars usually have inflammation of one or both testicular swelling.

Prevention: do a good job in environmental sanitation, disinfect regularly, and kill mosquitoes in time. Aborted fetus and placenta should be buried deeply. Attenuated Japanese encephalitis vaccine can be tried in epidemic areas and immunized one month before the outbreak. Boars from 4 months to 2 years old can be injected.

Treatment: Antibiotics can be used to prevent complications. You can try adding or subtracting gypsum soup, 155g gypsum, 124g anhydrous sodium sulfate, 25g concretio silicea bambusae, 62g radix isatidis, 62g folium isatidis, 18g indigo naturalis, 3 1g talc, 6g cinnabar (packaged separately), removing cinnabar, and adding cinnabar after cooling.

Addition and subtraction: Anemarrhena asphodeloides and Glycyrrhiza uralensis Fisch are added if high fever persists, and gypsum is reused; Constipation is yellow, and sodium sulfate is reused; Rehmannia glutinosa, Scrophularia root and Ophiopogon japonicus are insufficient in body fluid, and sodium sulfate and talc are used lightly; Radix Astragali, Radix Angelicae Sinensis, Radix Codonopsis, Atractylodis Rhizoma, etc. Used for weakness after illness.

Sixth, pig lung disease. Also known as swine pasteurellosis, throat lock wind. It is an acute infectious disease caused by Pasteurella. Healthy pigs often carry this bacterium, but it is not pathogenic. When the pig's resistance drops due to various reasons, bacteria take advantage of the lack to reproduce, leading to illness. The incubation period of this disease is 1-5 days.

Symptoms: 1, the most acute type: septicemia, sudden increase of body temperature to 4 1-42℃, stopping eating, blue mucosa, fever and swelling of pharynx, panting with mouth open, dog sitting, and finally suffocation and death, course of disease 1-2. Sometimes you die suddenly without any symptoms.

2. Acute type: When the body temperature rises above 465,438 0℃, the patient has a short-term spasmodic cough and dyspnea, and in severe cases, wheezing. There is tenderness in the chest, erythema and bleeding spots on the skin. Nasal purulent mucus, constipation before diarrhea, rapid heartbeat, lying on the ground for 5-8 days and dying, the mortality rate is about 70%.

3, chronic type: mainly manifested as cough, dyspnea or occasional asthma, emaciation and fatigue, appetite in and out, late diarrhea, foul smell. After 3-6 weeks, he died of weakness.

Prevention and control: 1, strengthen feeding management and improve the ability of pigs to reach Hangzhou. These fences are disinfected regularly. Inject swine pneumococcal vaccine twice a year.

2. Inject 40ml 10% sulfadiazine sodium into muscle every 50kg body weight, and then inject 20ml every 6 hours until it is cured.

3, penicillin according to the weight per kilogram 15000 units, once every 6 hours, rehabilitation period. Streptomycin daily 1g, intramuscular injection twice. The combined use of streptomycin has better effect.

Seven, piglet paratyphoid. Also called salmonellosis. Main damage 1-4 month-old piglets. Pathogens are transmitted to healthy pigs through the digestive tract. This disease is usually sporadic or endemic and can occur all year round.

Symptoms. 1, acute type: short course of disease, sudden death without obvious symptoms. If the course of the disease is a little longer, the initial body temperature is as high as 4 1-42℃, and the patient is depressed and does not eat. Late diarrhea, light yellow secretion, loose stool, anorexia, dyspnea, redness of ear roots, chest and abdomen skin, and then blue-purple or bleeding spots. Often fail and die.

2, chronic type: more common, mainly manifested as enteritis symptoms. High temperature (40.5-4 1.5℃) at the beginning of the disease, listlessness, anorexia, chills, sleeping in burrows, purulent discharge in eyes, constipation at the beginning, intractable diarrhea at the end, anal incontinence in severe cases, yellow or grayish green feces, foul smell, often mixed with bloodshot. Purple spots appeared on the skin before death. Generally speaking, after a few weeks, he died of emaciation and exhaustion.

Prevention and treatment: the disease mainly depends on prevention, and the treatment effect is generally poor.

1. Improve feeding management and sanitary conditions. Regular vaccination or oral piglet paratyphoid vaccine in epidemic areas. Feeding with antibiotics such as strychnine is also effective.

2. Oxytetracycline or chloramphenicol: the daily dose is 50- 100 mg/kg, and the drug is injected intramuscularly 1-2 times, and it is continuously applied until the body temperature drops and the spirit and appetite are obviously improved, and the dose is halved, and the drug is continued for 4-7 days.

3, sulfamethazine 0.2 g/kg per day, two oral, continuous 7- 10 days.

The above contents are for reference only.