Aeromonas HydrophilaIsolated from Cases of Bovine Seminal Vesiculitis in South Brazil

Abstract

Preliminary studies on pathologic conditions in the testis, epididymis, and the accessory sex glands of cattle have demonstrated that vesiculitis is the most common inflammatory condition in the genitals of Danish bulls. 5 Occasionally, this condition has an acute onset that produces clinical signs and then becomes a chronic disease. 18 Four-polled Hereford bulls approximatedly 1 year of age (1-2 years old) from a farm in southern Brazil were examined by rectal palpation. During this procedure, enlargement of the seminal vesicles was detected. The animals were slaughtered, and samples were collected for bacteriologic and histopathologic examination. Macroscopically, the seminal vesicles were enlarged and firm and contained foci of yellow exudate. The histopathologic examination revealed interstitial seminal vesiculitis with areas of lymphocytic and plasma cell infiltration surrounding alveoli containing suppurative exudate. Varying degrees of fibrosis were found in the glands. Samples of a selected group of organs were available for sectioning.For bacteriologic examination, fragments of seminal vesicles were inoculated asseptically onto 5% (w/v) sheep blood agar and incubated aerobically at 37 C for 24-48 hours. Microorganisms from all seminal vesicles were isolated in pure culture. The colonies were beta-hemolytic, smooth, small, and white and had characteristics of the genus Aeromonas (gram-negative rods, oxidase positive, fermentative metabolism,

The GenusAeromonas: Taxonomy, Pathogenicity, and Infection

“…Aeromonas spp. have also been implicated in a variety of infectious processes in seals (282) and as a cause of seminal vesiculitis in bulls (215). Together, the cumulative data strongly suggest that animals are an ever-present reservoir for the introduction and exchange of Aeromonas species in the environmental microbial world.…”

Prevalence and Antibiotic Resistance of Motile Aeromonas in Dogs

“…Motile aeromonad species have been implicated as the causative agents of diarrhoea, wound infections, and septicemia in humans (Trower et al 2000); diarrhoea (Pal et al 1989;Efuntoye 1995;Hathcock et al 1999), abortion and reproductive problems (Fontaine et al 1996;Das and Paranjape 1990), septic arthritis (Traub-Dargatz et al 1994), septicaemia (Andre- Fontaine et al 1995), mastitis (Bergman et al 1981), polyarthritis (Love and Love 1984), seminal vesiculitis (Moro et al 1999), acute deaths (Shane and Gifford 1985), conjunctivitis (Garcia et al 1992) and focal hepatic necrosis (Hiruma et al 1986) have been associated with infection by Aeromonas species in animals.…”

Short communication. Isolation of Aeromonas hydrophila in piglets

“…The production of Alentejano pig started a recovery two decades ago due to several factors including the increasing demand for these animal gourmet products (meat and traditional high grade transformed products). This breed is part of an agro-forestry-pastoral system ruminants (Moro et al, 1999;Staples, 2000;Ílhan et al, 2006;Janda & Abbott, 2010). Aeromonas hydrophila has been identified as the responsible agent of septicemia in dogs (Staples, 2000;Janda & Abbott, 2010).…”