Occurrence of Lawsonia intracellularis, Brachyspira hyodysenteriae and Salmonella sp. in pigs with diarrhea in the State of Mato Grosso

Abstract

Enteric diseases characterized by presence of diarrhea are an important problem that occurs in swine production systems worldwide, causing injury to agribusiness. Several agents such as bacteria and virus may be responsible, however, studies are needed to know the main agent involved for adoption of measures to treat and control more efficiently. This study aimed to identify the presence of L. intracellularis, B. hyodysenteriae and Salmonella sp. In feces of pigs with diarrhea in Mato Grosso (MT) Brazil. For this, samples were collected from rectal swabs of 176 animals from 9 different municipalities in MT, 42 belonged to animals in the nursery phase and 134 for growing and finishing. The technique diagnosis used was Polimerase Chain Reaction (PCR). It was observed that 33.23% (62/176) and 66.67% (6 / 9) of animals and cities studied were positive for at least one of the bacteria investigated, respectively. L. intracellularis was the most observed, followed by B. hyodysenteriae (12.50%) and Salmonella sp. (3.41%). In this study, the presence of bacteria in three animals with diarrhea in the nursery phase was observed.