Definition

Infectious disease caused by Mycoplasma hyopneumoniae that affects animals during raising period until finishing fattening, it causes respiratory problems, and, along with other agents (virus and bacteria) it generates porcine respiratory disease complex.

Clinical Signs

High morbidity, low mortality, nonproductive dry cough, delay growth on piglets, bristly parts, secondary infections resulting in dyspnea and poor productive performance.

Diagnosis

Differential: (PRRS, swine influenza, Haemophilus parasuis). Laboratory: M. hyopneumoniae isolation from lung and tracheal mucus. Serological: antibodies detection through IHT, CFT and ELISA.

Treatment

Tylvalosin + chlortetracycline

Prevention and Control

GMP – GSP – Mh Vaccination

Definition

Infectious disease that occurs more frequently in fattening pigs, it is caused by Lawsonia intracelullaris it penetrates and damages cells lining the ileum and colon.

Clinical Signs

Three forms: acute, subacute and chronic. Acute: sudden death, weakness, bloody diarrhea, black feces (melena) and anemia. Subacute: poor productive performance. Chronic: poor appetite and liquid persistant diarreas.

Diagnosis

Differential (swine dysentery, salmonelosis, colibacilosis, gastric ulcers). Laboratory: with intestinal mucus samples and feces it could be identify the causative agent through immunofluorescence assay, screening tests, histopathology.

Treatment

Tylvalosin + chlortetracycline

Prevention and Control

GMP – GSP – Vaccination three weeks after birth.

Definition

Infectious disease, caused by Brachyspira hyosentiriae damaging the lining of the large intestine.

Clinical Signs

Depressed piglets and poor appetite. In its acute form: diarrhea and abdominal pain. Severe cases: bloody diarrhea with mucus. Chronic form: reduced productive parameters.

Diagnosis

Differential: (PPE, intestinal spirochetosis, salmonellosis, Trichurus suis, E. coli. Laboratory: immunofluorescence, immunocitochemestry, electron microscopy.

Treatment

Tylvalosin and Tylvalosin + Chlortetracycline.

Prevention and Control

GMP – GSP, rodent control. No vaccine available.

Definition

Multifactorial chronic respiratory disease, involving: P.multocida and B. bronchiseptica. It is characterized for producing rhinitis and atrophia of the nassal passages, PAR and NPAR.

Clinical Signs

Sneezing and respiratory distress, deformity of the nose, lacrimation and weak growth (in piglets up to three weeks of age). Also is seen incidences of hemorrhages and deviated nose. It may result in encephalitis and pneumonia.

Diagnosis

Differential: cytomegalovirus infections (rhinitis due to inclusion bodies), influenza virus, PRRS, deficient feeding facility designs that generate maxillary deformations. Laboratory: DNA probes, PCR and ELISA.

Treatment

Tylvalosin + Chlortetracycline

Prevention and Control

GMP-GSP- sanitary control in the replacement sows. Vaccine application.