Background: Mycoplasmal pneumonia causes severe economic loss in goat farms due to loss of production performance and mortality. Mycoplasma ovipneumoniae is an important pathogen causing mycoplasmal pneumonia in small ruminants. The present research work was carried out to study the pathomorphological alterations associated with M. ovipneumoniae infection in an organized goat farm. 
 
Methods: The research work was carried out in an organized goat farm having history of respiratory illness with mortality and suspected for mycoplasmal pneumonia. Samples from ailing animals and dead animals were collected for investigation. Tissue samples from lungs, trachea, mediastinal lymph nodes and swabs from lungs, trachea and pleural fluid were collected during postmortem examination and subjected to laboratory examination. 
 
Result: The samples were confirmed to be positive for M. ovipneumoniae infection by PCR using specific primers. The clinical signs of M. ovipneumoniae infection observed were anorexia, mucopurulent nasal discharge, coughing, increased body temperature, respiratory distress and death in severely affected animals. In the present study, 10 animals exhibited clinical signs and 3 animals died out of 10 animals. Necropsy lesions observed in lungs were fibrinous adhesions, severe consolidation of left lung and blackish discoloration of right lung. Histopathologically, lesions in lungs were characterized by widespread congestion, presence of inflammatory cells, widened interlobular septa with fibrin and inflammatory cells. Congestion of bronchioles and presence of pinkish fibrinous exudate within the bronchiolar lumen were observed. From the present study it is concluded that M. ovipneumoniae infection causes severe pathology of respiratory organs and mortality in goats under stressful conditions like long transport.

Pathomorphology of Mycoplasmal Pneumonia Associated with Mycoplasma ovipneumoniae Infection in an Organized Goat Farm

<div>Background: Contagious agalactia causes significant economic losses. The aim of this study is to investigate the presence of contagious agalactia disease in cities of Isparta and Afyonkarahisar, Turkey.&nbsp; 
 
Methods: The study includes 45.500 animals in 220 ovine enterprises and samples were taken from those suspected of contagious agalactia disease. 202 animals in the 21 ovine enterprises comprised of 139 goats, 56 sheep, 3 kid goats, 2 goats, 2 lambs in total suspected of the disease were sampled. A total of 289 samples were collected, including 91 milk samples, 28 nasal swabs, 101 eye swabs, 8 joint fluids and 61 ear swabs. The isolates obtained after incubation were identified with polymerase chain reaction by using specific primers to assess film and spot formation, glucose fermentation, growth inhibition tests.&nbsp; 
 
Result:&nbsp;Three Mycoplasma spp. isolates obtained from 28 nasal swabs turned out to be negative for M. agalactiae after PCR analysis. Colony morphology, biochemical tests and growth inhibition tests revealed that one agent was M. arginine and the two factors were identified as M. ovipneumoniae with centerless colony morphology. The obtained results were confirmed with the polymerase chain reaction. None of the four factors causing contagious agalactia were isolated and identified.</div>

Pathomorphology of Mycoplasmal Pneumonia Associated with Mycoplasma ovipneumoniae Infection in an Organized Goat Farm

An Investigation of Contagious Agalactia Disease of Sheep and Goats in Isparta and Afyonkarahisar in Turkey