Now the pig equipment has been widely used in pig farms. Using these equipment can greatly reduce the labor force and improve the income. However, some diseases are inevitable in the process of pig breeding, so we need to take preventive measures. Respiratory diseases in pigs occur all year round, but they are more serious in summer. If the respiratory diseases of pigs are not controlled in time, it is easy to cause large-scale outbreaks. Respiratory disease of pigs is easy to cause the decrease of appetite of finishing pigs. When it is serious, the pigs grow slowly and even die, which causes great loss to the pig farm.
1、 Symptoms of respiratory diseases in pigs
Pigs breathe heavily in the early stage of the disease. With the aggravation of the disease, it becomes difficult to breathe. They open their mouths to breathe, especially in the hot summer. Pigs are in dog sitting and abdominal breathing. Some sick pigs will be accompanied by cough symptoms, appetite began to decline, depression, emaciation.
2、 Causes of respiratory diseases in pigs
1. In summer, the high temperature and humidity are conducive to the propagation and transmission of respiratory pathogens, resulting in the infection of swine with respiratory diseases such as Haemophilus parahaemophilus, Pasteurellosis and Streptococcus suis.
2. Generally, the fattening pigs in the pig farm will be free to eat, and there will be feed residues in the pig trough. Due to the high temperature in summer, it is easy to cause mildew of the residual feed, which will cause respiratory diseases after the pigs are fed.
3. The fat of pig skin is thick, and the sweat glands are underdeveloped. Under the high temperature in summer, the heat in the body can not be discharged from the body in time, which leads to the respiratory diseases of lung heat and heat.
3、 Prevention and treatment of respiratory diseases in pigs
1. Provide nutrition balanced feed to enhance the disease resistance of pigs, and add drugs to the feed to prevent respiratory diseases such as Haemophilus parahaemophilus, Pasteurellosis and Streptococcus suis.
2. After feeding the pigs, the residual feed should be removed in time to prevent the pigs from getting sick from eating moldy feed.
3, do a good job of pig house cooling measures, doors and windows should often open to protect the air circulation of piggery, can install fans in the inlet, speed up the flow of the air, if necessary, install the spray device in the pig house to improve the cooling effect of the pig house.
4、 Respiratory disease prevention and control measures:
1. Keep away from diseases: adhere to self breeding and self-cultivation, and strictly prevent the introduction of foreign pigs. If it is necessary to introduce, it is necessary to strictly quarantine the isolation and do a good job in disinfection management.
2. Management inside: ensure the reasonable nutrition of the pig group at all stages, avoid feed spoilage, control the small environment in combination with season change, strictly control the feeding density, implement the full in and full out system, and regularly alternate disinfection with a variety of chemical disinfectants.
3. Vaccine immunity: the vaccine must be injected into the chest cavity, and the intramuscular injection is ineffective. Pay attention not to feed or inject oxytetracycline, kanamycin and other drugs with inhibitory effect on the vaccine 15 days before and two months after the injection of the vaccine.
4. Treatment: the first choice of drugs: enrofloxacin for intramuscular injection; doxycycline for internal administration (including mixture and drinking water). Available drugs: other fluoroquinolones (difluorofloxacin, danofloxacin, ofloxacin), lincomycin, beilimycin, terramycin, aureomycin, tylosin.