Prevalência e fatores de risco da toxoplasmose bovina na microrregião de Teresina PI / Prevalence and bovine toxoplasmosis risk factors in the micro region of Teresina - PI

Toxoplasmosis is caused by the protozoan Toxoplasma gondii, a cosmopolitan zoonosis that affectsseveral warm-blooded animal species. The main transmission routes of T. gondii are fecal-oral, carnivorous andcongenital.Congenital transmission, when the parasite reaches the concept via the transplanted route, is oftenmore severe, which transmits tachyzoites to the fetus.. The present study was carried in 13 production units ofcattle in the municipalities near from Teresina. Blood collection was performed by jugular venipuncture, using a15 ml collection tubes without anticoagulant. For the identification of. anti-T. gondii used the technique ofindirect immunofluorescence (IIF) for detection of antibodies of the IgG class. The prevalence of infection by theprotozoan parasite for the samples examined was 17,44% (68/390) of seropositive animals and 82,56%(322/390) seronegative, distributed in 100% (13/13) of the herds studied. Also demonstrated in this study, theoccurrence of at least one animal tested positive for T. gondii, in each flock evaluated.(AU)

Prevalência e fatores de risco da toxoplasmose bovina na microrregião de Teresina – PI / Prevalence and bovine toxoplasmosis risk factors in the micro region of Teresina - PI

Toxoplasmosis is caused by the protozoan Toxoplasma gondii, a cosmopolitan zoonosis that affectsseveral warm-blooded animal species. The main transmission routes of T. gondii are fecal-oral, carnivorous andcongenital.Congenital transmission, when the parasite reaches the concept via the transplanted route, is oftenmore severe, which transmits tachyzoites to the fetus.. The present study was carried in 13 production units ofcattle in the municipalities near from Teresina. Blood collection was performed by jugular venipuncture, using a15 ml collection tubes without anticoagulant. For the identification of. anti-T. gondii used the technique ofindirect immunofluorescence (IIF) for detection of antibodies of the IgG class. The prevalence of infection by theprotozoan parasite for the samples examined was 17,44% (68/390) of seropositive animals and 82,56%(322/390) seronegative, distributed in 100% (13/13) of the herds studied. Also demonstrated in this study, theoccurrence of at least one animal tested positive for T. gondii, in each flock evaluated.

Joint ultrasonography of goats infected by the caprine arthritis encephalitis virus

Background: The most important form of caprine arthritis encephalitis virus in the goat is the arthritic, generally observed in animals over eight months of age. Differently in sheep, there is less arthritis incidence, affecting 2-3-year-old animals. The clinical alterations frequently affect goat joints, and an increase in the joint consistency and size is observed. The objective of the present study was to standardize the ultrasound technique to access joints in animals infected with the caprine arthritis encephalitis virus (CAEV), so that it can be a complimentary support tool for diagnosis and animal management. Materials, Methods & Results: Animals were examined from farms located in the municipality of Teresina, state of Piauí, Brazil. For this, the M-Turbo, Sonosite Fujifilm ultrasonography apparatus was used, attached to a linear transducer with 10-13 MHz frequency. The ultrasound examination analyzed three regions: patella-humerus joint, carpal and tarsal joints. The patella-humerus joint was characterized by its concave convex surface. The surface of the head humerus was a fine hyperechoic line composed by the junction between the joint cartilage and the subcontinent bone. The sub patella muscle was visible and its fibers present a parallel and hypoechogenic pattern compared to bone tissue. A discreet muscle edge with echogenicity was observed separating the [...](AU)

Joint ultrasonography of goats infected by the caprine arthritis encephalitis virus

Background: The most important form of caprine arthritis encephalitis virus in the goat is the arthritic, generally observed in animals over eight months of age. Differently in sheep, there is less arthritis incidence, affecting 2-3-year-old animals. The clinical alterations frequently affect goat joints, and an increase in the joint consistency and size is observed. The objective of the present study was to standardize the ultrasound technique to access joints in animals infected with the caprine arthritis encephalitis virus (CAEV), so that it can be a complimentary support tool for diagnosis and animal management. Materials, Methods & Results: Animals were examined from farms located in the municipality of Teresina, state of Piauí, Brazil. For this, the M-Turbo, Sonosite Fujifilm ultrasonography apparatus was used, attached to a linear transducer with 10-13 MHz frequency. The ultrasound examination analyzed three regions: patella-humerus joint, carpal and tarsal joints. The patella-humerus joint was characterized by its concave convex surface. The surface of the head humerus was a fine hyperechoic line composed by the junction between the joint cartilage and the subcontinent bone. The sub patella muscle was visible and its fibers present a parallel and hypoechogenic pattern compared to bone tissue. A discreet muscle edge with echogenicity was observed separating the [...]