ABSTRACT A study was carried out concerning the prevalence of Streptococcus suis type II in swines in Botucatu region, São Paulo State. Nine properties were studied, in a total of 331 animals of Large White X Landrace breeding, being 164 (49.55%) males and 167 (50.45%) females, with ages ranging from 4 to 6 weeks. The samples were obtained by sterile swabs from tonsils and were cultivated in MacConkey and 10% Bovine Blood Agar media. The plates were incubated at 37oC till 72 hours. The following tests were performed for the biochemical classification: acid production from inulin, lactose, raffinose, manitol, salicin, sorbitol and trehalose, aesculin hydrolysis, sodium hipurate and growth in saline solution 6.5%. Streptococcus suis type II were isolated in 34 (10.27%) samples. Ampicilin, oxacilin, penicillin, cloramphenicol, tetracycline, sulfazotrim, gentamicin and cephalotine were used to determine sensitivity. The results of the antibiogram, according to its sensitivity and resistance, respectively, are expressed as follow: cloramphenicol (92.86% and 3.57%), cephalotine (92.86% and 3.57%), oxacilin (92.86% and 7.14%), ampicilin (85.72% and 7.14%), penicillin (71.43% and 3.57%), gentamicin (45.43% and 35.71%), tetracycline (7.14% and 85.72%) and sulfazotrim (7.14% and 85.72%). region State studied 33 breeding 16 49.55% 4955 49 55 (49.55% 50.45% 5045 50 45 (50.45% females weeks 10 media oC 7 hours classification inulin lactose raffinose manitol salicin trehalose hydrolysis 65 5 6.5% 3 10.27% 1027 27 (10.27% Ampicilin antibiogram resistance respectively follow 92.86% 9286 92 86 (92.86 3.57%, 357 3.57% , 57 3.57%) 7.14%, 714 7.14% 14 7.14%) 85.72% 8572 85 (85.72 71.43% 7143 71 43 (71.43 45.43% 4543 (45.43 35.71%, 3571 35.71% 35 35.71%) (7.14 85.72%. . 1 49.55 495 (49.55 50.45 504 (50.45 6.5 10.27 102 2 (10.27 92.86 928 9 8 (92.8 3.57 7.14 85.72 857 (85.7 71.43 (71.4 45.43 454 (45.4 35.71 (7.1 49.5 (49.5 50.4 (50.4 6. 10.2 (10.2 92.8 (92. 3.5 7.1 85.7 (85. 71.4 (71. 45.4 (45. 35.7 (7. 49. (49. 50. (50. 10. (10. 92. (92 3. 7. 85. (85 71. (71 45. (45 35. (7 (49 (50 (10 (9 (8 (4 ( (5 (1
RESUMO Estudou-se a prevalência do Streptococcus suis tipo II em suínos da região de Botucatu, Estado de São Paulo. Utilizou-se nove propriedades, totalizando 331 animais provenientes do cruzamento de Large White e Landrace, sendo 164 (49,55%) machos e 167 (50,45%) fêmeas, com idades variando de quatro a seis semanas. As amostras foram obtidas a partir de swabs estéreis de tonsilas palatinas, cultivados em meios de MacConckey e Ágar Sangue Bovino 10%. As placas foram cultivadas a 37oC por até 72 horas. A classificação bioquímica foi realizada a partir dos testes: produção de ácido a partir da inulina, lactose, rafinose, manitol, salicina, sorbitol, e trealose, hidrólise da esculina, hipurato de sódio e crescimento em solução salina a 6,5%. O Streptococcus suis tipo II foi isolado em 34 (10,27%) das amostras. Utilizou-se ampicilina, oxacilina, penicilina, cloranfenicol, tetraciclina, sulfazotrim, gentamicina e cefalotina para se determinar sua sensibilidade. Os resultados do antibiograma, de acordo com sua sensibilidade e resistência, respectivamente, são expressos a seguir: cloranfenicol (92,86% e 3,57%), cefalotina (92,86% e 3,57%), oxacilina (92,86% e 7,14%), ampicilina (85,72% e 7,14%), penicilina (71,43% e 3,57%), gentamicina (45,43% e 35,71%), tetraciclina (7,14% e 85,72%) e sulfazotrim (7,14% e 85,72%). Estudouse Estudou Botucatu Paulo Utilizouse Utilizou propriedades 33 Landrace 16 49,55% 4955 49 55 (49,55% 50,45% 5045 50 45 (50,45% fêmeas semanas palatinas 10 10% oC 7 horas testes inulina lactose rafinose manitol salicina sorbitol trealose esculina 65 6 5 6,5% 3 10,27% 1027 27 (10,27% antibiograma resistência respectivamente seguir 92,86% 9286 92 86 (92,86 3,57%, 357 3,57% , 57 3,57%) 7,14%, 714 7,14% 14 7,14%) 85,72% 8572 85 (85,72 71,43% 7143 71 43 (71,43 45,43% 4543 (45,43 35,71%, 3571 35,71% 35 35,71%) (7,14 85,72%. . 1 49,55 495 4 (49,55 50,45 504 (50,45 6,5 10,27 102 2 (10,27 92,86 928 9 8 (92,8 3,57 7,14 85,72 857 (85,7 71,43 (71,4 45,43 454 (45,4 35,71 (7,1 49,5 (49,5 50,4 (50,4 6, 10,2 (10,2 92,8 (92, 3,5 7,1 85,7 (85, 71,4 (71, 45,4 (45, 35,7 (7, 49, (49, 50, (50, 10, (10, 92, (92 3, 7, 85, (85 71, (71 45, (45 35, (7 (49 (50 (10 (9 (8 (4 ( (5 (1