This study aimed to describe reproductive ecology based on morphological aspects of Peckoltia oligospila in stream rapids, eastern Amazon. A total of 186 fish (75 males and 111 females) were collected. The sex and gonadal maturity stage of these specimens were obtained based on histological characteristics of the gonads.
View Article and Find Full Text PDFStaphylococcus aureus enterotoxins (SEs) can lead to food poisoning and appear to play a pivotal role in the development and severity of mastitis. This study aimed to evaluate whether the presence and diversity of S. aureus Enterotoxin genes mastitis-causing are associated with the development and severity of mastitis in dairy cows.
View Article and Find Full Text PDFThe swine production chain can be a reservoir of antimicrobial-resistant , which transfers resistance genes to other bacteria, serving as an important biomarker in the One Health approach. This study aimed to identify the frequency and antimicrobial resistance profile of in the swine production chain, assess the presence of extended-spectrum beta-lactamases (ESBL), and compare resistance profiles across different sample types. A total of 622 samples of swine carcasses from various points of the slaughter process (n = 400), swine feces (n = 100), commercial cuts (n = 45), environment (n = 67), and feces from employees (n = 10) of a pig slaughterhouse certified by the Federal Inspection Service, located in São Paulo state, Brazil, were collected.
View Article and Find Full Text PDF