Milk and its derivatives are highly consumed foods worldwide, with recognized nutritional importance. The search for the production of products with superior quality is constant. For the present work, 26 milk-producing properties were selected, with a total of 506 milk samples collected during the period from October 2019 to May 2020 being evaluated. The objective of this study was to evaluate the quality of mi...
In order to evaluate the pathogenicity and antimicrobial resistance pattern of BK 125 Escherichia coli strain, several tests were assessed: serotype, slide agglutination for detection of the fimbriae F18, presence of the gene Stx2e, verotoxin production, hemolytic activity, pathogenicity assessement using piglet inoculation and antimicrobial resistance to drugs. The strain BK125 showed the following profile: F1...
In this paper was report the isolation of Escherichia coli in broiler chickens with cellulitis in the cervical region. It was carried through the isolation of E. coli of the lesion of cellulitis from broilers and carried through histopathological examination of skin that had characterized the lesion. Focal ulcerations of epidermis, fibrin in dermis and difuse infiltrated by lymphocytes and heterophils on subcut...
Ten E. coli strains isolated from celulitis lesion s of Japanese quails were to evaluated antimicrobia l resistance to twent y six drugs , to pathogenicity of strains in SPF chickens embryonated eggs and virulence factors. The antimicrobials of higher efficiency wer e ampicillin, florfenicol and the lesser efficiency were erythromycin, oxacilin, lincomicin, novobiocin, penicillin, sulfonamidas, trimethoprim+sul...
A longitudinal study was performed during 18 months to obtain epidemiological data from porcine rotaviruses in a flock from Southwest area of Parana State, Brazil. Electropherogroup A of porcine rotavirus (PRV) was identified by polyacrylamide gel electrophoresis in 137 (27.8%) of 492 diarrheic fecal samples. The infection was more common in prior and post weaning periods. Fecal samples from four and five weeks...
Rotaviruses are the major pathogen for both human and animal. They affect young animals in intensive rearing and cause great economic losses. This study intended to evaluate the infectivity of porcine rotavirus maintained for 32 months at approximately 10ºC. in the original stools specimens. Thirty stools specimens of 1-4-week-old piglets originating from breeding farms located in the southwest region of the Pa...
21 pig farms of southwest Paraná were observed during summer and winter period 1991 and determined through bacteriology, virology and parasitology assays the causal agents and their combination on pre-weaning diarrhoea occurrence. The most affected piglets age groups were 8 to 14 days and 15 to 21 days old. The combination of two or more pathogenic agents were observed in 34 and 50% of the cases, in the summer ...