1. Exudative dermatitis (seborrheic dermatitis in sick pigs)

Exudative dermatitis is characterized by skin lesions caused by staphylococcal infection in pigs. In severe cases, death can occur because the bacteria can damage the liver and kidneys. The lesions first appear as several black areas on the skin, which can expand and become scaly with a greasy feel. This infection can be treated with antibiotics and a protective agent applied to the skin; it can also be prevented with a homegrown vaccine, which has been successful. Improving the hygienic conditions in which piglets are housed is key to preventing this disease, and combining this with dipping and sterilizing the teats of pre and post parturient sows with medication. It is also important to reduce the chances of skin abrasions, as this can lead to the invasion of infection sources into the organism. Rough floors, abrasive teeth, sharp equipment or even mosquito bites can lead to skin damage.

2. Porcine coccidiosis

This disease is most common in nursing piglets and is caused by three types of intracellular parasitic coccidia. It can cause diarrhea in piglets, and feces may be bloody, and often occurs in piglets between 10 and 21 days of age and no more than 15 weeks of age. Acute cases may be treated with rehydration fluids and anticoccidials. Damage to the intestinal wall can invite secondary infections. Depending on the incidence on the farm, prophylactic treatment of sows with anticoccidials may be more appropriate to prevent coccidiosis in piglets. Carefully recommended huobao1866tv, learn about industry events every day. Hygiene in pig farms should be improved to terminate the infection cycle; sow feces is an important source of infection for coccidiosis in piglets, and mosquitoes and flies can also transmit the disease. Providing warm, dry, clean farrowing areas will help reduce parasite loads and the likelihood of coccidial infection.

II. Late Weaning

1. Respiratory Disease

Coughing, sneezing, abnormal respiration, slowed growth and potential death are all symptoms of respiratory disease. Depending on the cause, this disease can be treated by adding antibiotics to the feed or water or by injection. Respiratory disease can be exacerbated by poor ventilation or poor environmental conditions. For example, high levels of ammonia in a barn can damage a pig's respiratory tract, thereby increasing its susceptibility to infection. Infectious agents that cause respiratory disease include Streptococcus suis and Pasteurella. Vaccines are available for some types of pneumonia, although strains affecting swine farms should be characterized to ensure good immunity. Porcine pleuropneumonia caused by Actinobacillus pleuropneumoniae can result in significant mortality in the herd, as well as slowed growth and lung damage in recovered sick pigs. Excessive stocking density and dust in the barn, coupled with PRRS virus, are predisposing factors for respiratory disease.

2. Swine dysentery

Sick pigs that develop swine dysentery develop bloody or non-bloody diarrhea. The causative agent of this disease is the short spirochete of swine dysentery. Infection of weaned piglets with this organism results in slowed growth and, in some cases, sudden death. The disease can be treated by adding antibiotics to feed and water or by direct injection of antibiotics. Reducing stocking density is an effective way to reduce infection pressure and stress in pigs. Not only improving the sanitary conditions of the farm, but also controlling rats and mice is the first priority in preventing this disease; rats are the vectors for the spread of this disease. Strategies for purchasing and introducing reserve herds should be re-examined as this is a major route of introduction of the disease into the farm.