Meningoencephalitis and Arthritis in Post-Weaning Piglet with Streptococcal Infection
Meningoencephalitis and Arthritis in Post-Weaning Piglet with Streptococcal Infection
Ida Bagus Oka Winaya1*, Anak Agung Ayu Mirah Adi1, Putu Henrywaesa Sudipa2, I Gusti Ketut Suarjana2
ABSTRACT
Streptococcus suis is the main agent of streptococcosis in pigs, the infection is systemic with high morbidity and mortality, especially in young pigs. This disease causes significant economic losses to the swine industry worldwide. This study aims to determine the histopathological changes of meningoencephalitis and arthritis in post-weaning piglets suspected of streptococcosis. The samples were 35 cadaver of post weaning piglets that showed muscle spasm and swollen joint at several villages in Badung Regency, Indonesia. Samples of the brain and synovial tissue were processed using hematoxylin-eosin dyes (HE). On histopathological examination, congestion, edema, mild infiltration of neutrophils and macrophages in the meningen, and ischemic neuronal pyknosis were found in the brain. In the synovial tissue, there is a heavy infiltration of neutrophils with few macrophages. Microbiological examination showed the growth of small round colonies, grayish-white, mucoid but hemolysis reaction was not clearly visible. On Gram staining, the bacteria looks purple, the coccus arranged like a chain, reacts negatively in the catalase and oxidase tests. The findings of meningoencephalitis in the brain, arthritis in the leg joints, and microbiological tests suggest that post-weaning piglets suffer from streptococcosis.
Keywords | Histopathology, Meningoencephalitis, Post-weaning piglet, Streptococcosis, Streptococcus suis
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