<i>BRUCELLA ABORTUS</i> INFECTION IN THE BULL

Plant, J. W.; Claxton, P. D.; Jakovljevic, D.; Saram, W.

doi:10.1111/j.1751-0813.1976.tb05363.x

Cited by 16 publications

(14 citation statements)

References 9 publications

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“…Lubbehusen and Fitch [25] reported no clinical changes in three young bulls challenged with B. abortus on three occasions over a six-month period. Plant et al [22] observed, in one bull, that the time from infection to the development of orchitis was at least 122 days. Occasionally, hygromas [26] and arthritis [27] are observed.…”

Section: Brucellosis In Cattlementioning

confidence: 95%

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Clinical Manifestations of Brucellosis in Domestic Animals and Humans

Megid¹,

Mathias²,

Robles³

2010

TOVSJ

105

106

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Brucellosis in domestic animals is a chronic disease that is characterized mainly by reproductive signs in cattle, buffaloes, pigs, sheep, goats and dogs. In females the disease is characterized by abortion, placenta retention, vaginal secretions, low fertility rate and also embryonic and neonatal death. In males, regular findings include epididymitis, orchitis, uni-or bilateral testicular atrophy, sperm abnormalities and infertility. Lymphadenopathy, hepatopathy, splenomegaly, uveitis and discospondylitis may also be observed in dogs. In horses, the typical clinical sign is characterized by a granulomatous supraspinous or supra-atlantal bursa lesion. Infected animals can also be asymptomatic. Infected symptomatic or asymptomatic animals represent an important source of infection to other animals and humans. Brucellosis in humans can cause undulant fever, malaise, insomnia, anorexia, headache, arthralgia, constipation, sexual impotence, nervousness and depression. For all species the presentation of clinical signs are only suggestive of disease infection and thus must be differentiated from other diseases.

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Section: Brucellosis In Cattlementioning

confidence: 95%

“…2) [20]. Atrophy of testicle may also occur [21,22]. Plant et al [22] considered that the syndrome involving seminal vesicles and ampoule is apparently more common than the one involving the testicles and epididymides.…”

Section: Brucellosis In Cattlementioning

confidence: 99%

Clinical Manifestations of Brucellosis in Domestic Animals and Humans

Megid¹,

Mathias²,

Robles³

2010

TOVSJ

105

106

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“…Another similar study, isolated B. abortus from 90 of 93 (97.0%) consecutive semen ejaculations from a bovine bull for five year period. In the same study, the pathogen was recovered from another bovine bull over 2 years and 6 months [19]. Both aforementioned studies detected macroscopic abnormalities in the semen [18,19].…”

Section: Resultsmentioning

confidence: 96%

Performance of microbiological, serological, molecular, and modified seminal plasma methods in the diagnosis of Brucella abortus in semen and serum of bovine bulls

et al. 2017

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Brucellosis remains as a major infectious disease of domestic animals and is considered a re-emerging zoonosis in several countries. B. abortus infections in bulls are related to reproductive tract infections, although infected animals show transient serological titers or nonreactor status. Thus, diagnosis of bovine brucellosis based exclusively on serological tests probably underestimates B. abortus infections in bulls. In this scenario, three hundred thirty-five serum samples from reproductively mature bovine bulls were subjected simultaneously to standard serodiagnosis using the rose Bengal test (RBT), 2-mercaptoethanol (2-ME), complement fixation (CFT), and fluorescence polarization assay (FPA). Furthermore, conventional semen plasma agglutination (SPA) and modified 2-ME, FC and, FPA were carried out in all bulls replaing serum by seminal plasma. Semen from all bulls was also analyzed for sperm viability, microbiological culture in Farrell media, and polymerase chain reaction (PCR). Only eight (2.38%) semen samples were considered improper for reproduction services (necrospermia and azoospermia), although none of these animals was positive in any of the diagnosis methods used. Five bulls (1.49%) were simultaneously positive in conventional RBT, 2-ME, SPA, modified 2-ME, microbiological culture in Farrell media, and in PCR for B. abortus strain 19. Two (1.67%) bulls were positive in PCR for B. abortus field strains and negative in all other tests, although semen was considered viable to reproduction service. The identification of B. abortus B19 strain in serum and semen of bulls occurred probably due to improper vaccination of males or infection by B19 strain shedding by vaccinated females that could to contaminated environment of farms. In addition, detection of B. abortus field strains only using PCR in bulls without sperm viability abnormalities indicate the need for including molecular methods to improve diagnosis of the disease in bovine bulls.

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“…14,17,18 One group of workers has concluded that there are 2 syndromes in bovine bulls that may or may not occur in the same animal. 17 The first is orchitis and epididymitis; the second more common syndrome involves the seminal vesicles and ampullae. The same workers concluded that infected bulls may be seropositive or seronegative and may or may not shed B. abortus in the semen.…”

Section: Discussionmentioning

confidence: 99%

Seminal Vesiculitis and Orchitis Caused by Brucella Abortus Biovar 1 in Young Bison Bulls from South Dakota

Rhyan

Holland²,

Gidlewski

et al. 1997

J VET Diagn Invest

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Abstract. Specimens of blood, lymph nodes, spleens, and genitalia were collected at slaughter from seven 3-and 4-year-old male bison that had recently become seropositive for brucellosis. The animals were from a captive herd of approximately 3,500 bison located in central South Dakota. Brucella abortus biovar 1 was isolated from 2 or more specimens from each of 6 bison. Severe necrotizing and pyogranulomatous orchitis was present in 1 testicle from 1 bull, and 4 animals had mild to marked seminal vesiculitis. Immunohistochemical staining labeled organisms in seminal vesicles and the testicle with orchitis. Ultrastructurally, intact bacilli were present in cytoplasmic vacuoles of some macrophages; other macrophages contained intracytoplasmic aggregates of calcified coccobacilli.Brucella abortus produces abortion in cattle, bison, 9,19,23 and elk. 21 Additionally, metritis and retained placentas are associated with the infection in cattle and bison. 7,23 In male cattle, brucellosis typically is associated with seminal vesiculitis, orchitis, and epididymitis. There are few reports of similar lesions in the genitalia of B. abortus-infected bison bulls. 7,8,22,23 The purpose of this report is to describe the sites of bacterial localization and lesions associated with natural infection by B. abortus in 3-and 4-year-old bison bulls from a large captive herd in South Dakota. Materials and methodsBlood and tissue specimens including lymph nodes, spleen, and genitalia were collected from seven 3-and 4-yrold bison bulls at slaughter (Table 1). The bulls were from a herd of 3,500 bison located in central South Dakota. The herd was under state quarantine and had been engaged in a whole-herd test and slaughter program since 1990. In December 1994, 80, 3-and 4-yr-old bulls and 4 adult cows were seropositive on standard serologic tests for brucellosis. These animals had been seronegative on all previous tests; the last test had been in the spring of 1994. All of the seropositive animals were slaughtered for meat.Portions of testicles, epididymides, and seminal vesicles were removed and placed in 10% neutral buffered formalin.

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BRUCELLA ABORTUS INFECTION IN THE BULL

Cited by 16 publications

References 9 publications

Clinical Manifestations of Brucellosis in Domestic Animals and Humans

Clinical Manifestations of Brucellosis in Domestic Animals and Humans

Performance of microbiological, serological, molecular, and modified seminal plasma methods in the diagnosis of Brucella abortus in semen and serum of bovine bulls

Seminal Vesiculitis and Orchitis Caused by Brucella Abortus Biovar 1 in Young Bison Bulls from South Dakota

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