The Duration and Distribution of Synovitis-Producing Agents in Chickens

No, Olson; Km, Kerr

doi:10.2307/1588298

Cited by 45 publications

(25 citation statements)

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“…The current study confirms infections predominantly in geese, ducks, cockerells, pigeons and especially domestics (Adler, 1959;Jungherr, 1959;Frost, 1961;Carnaghan, 1966;Ackerman et al , 1974;Wise, 1975;Montali, 1988;Olson & Kerr, 1967;Quesenberry, 1997;Saif, 2003), but also documents its occurrence in swans and birds of prey (Table 1). The frequencies, however, were statistically indistinguishable among families.…”

Section: Discussionsupporting

confidence: 80%

Epidemiologic assessment of trauma-independent skeletal pathology in non-passerine birds from museum collections

Rothschild

Panza

2005

Avian Pathology

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Section: Discussionsupporting

confidence: 80%

Epidemiologic assessment of trauma-independent skeletal pathology in non-passerine birds from museum collections

Rothschild

Panza

2005

Avian Pathology

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“…The groups inoculated with M. synoviae at 8 weeks of age (LCh and HTu groups) had significantly lower positive cultures compared with the LHCh group, which was reinoculated with M. synoviae at 12 weeks of age. This is in accordance with other studies performed in chickens, where the isolation of M. synoviae was shown to decrease with the chronicity of the infection, with few or no mycoplasmas being detected in blood and/or joint samples examined 6 to 8 weeks after inoculation (Olson & Kerr, 1967;Kawakubo et al, 1980;Landman & Feberwee, 2004). Another factor contributing to the poor yields may have been the low sensitivity of mycoplasma culture as it is currently performed, which could be circumvented by using a more sensitive PCR for the detection of M. synoviae in joints (Dijkman et al, 2011).…”

Section: Discussionsupporting

confidence: 93%

“…Both, infectious and non-infectious conditions may be responsible for lameness due to joint problems in the young and the adult turkey (Olson et al, 1956;Clark et al, 1981;Huff et al, 2000;Kleven & Ferguson-Noel, 2008). Escherichia coli, Staphylococcus aureus and Ornithobacterium rhinotracheale are commonly associated with joint disease in turkeys (Nairn, 1973;Huff et al, 2000;Szalay et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Longitudinal field study on the occurrence ofMycoplasma synoviaein Dutch turkey flocks with lameness and experimental induction of the condition

Landman

Feberwee

2012

Avian Pathology

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Four meat turkey farms with a history of lameness were investigated for the presence of Mycoplasma synoviae by testing one flock per farm for antibodies with the rapid plate agglutination (RPA) test and/or for M. synoviae DNA by polymerase chain reaction (PCR). Flocks were sampled every 2 weeks from 6 weeks of age until slaughter. If PCR results were positive, tracheal swabs were taken for mycoplasma isolation and swollen joints were sampled for general bacteriology, mycoplasma culture and virology. In one flock, all M. synoviae diagnostic tests were negative but reovirus was isolated. In the other flocks, M. synoviae was the only pathogen associated with lameness due to joint disease. M. synoviae RPA tests became positive 6 to 8 weeks later than PCR. An experimental infection was then conducted in male meat turkeys in which a negative control group was sham inoculated at 8 weeks of age, while three other groups were inoculated intravenously with M. synoviae. Turkeys in group LCh were given 10 5 colony-forming units (CFU) of an arthropathic M. synoviae chicken strain at 8 weeks; group LHCh was given a low (10 5 CFU) dose at 8 weeks, followed by a high (10 8 CFU) dose at 12 weeks, of the same chicken strain; and group HTu was inoculated with 10 8 CFU of a M. synoviae turkey joint isolate from the field study. Post-mortem examination, histopathology, serology, bacteriology and mycoplasma culture were performed at 19 weeks of age. A dose effect was found after comparing the LCh and the LHCh groups. No significant difference was observed between the HTu (10 8 CFU/bird) and the LCh (10 5 CFU/bird) group regarding the number of turkeys with arthritis, the number of M. synoviae reisolations and the mean microscopic lesion scores of joints, indicating that the M. synoviae chicken strain has greater arthropathogenic potential and that infection of turkeys in the field with such a strain may possibly have a greater clinical and economic impact.

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“…The sustained growth of strain PS in TOC for at least 37 days at high titre suggested the possibility of long-term persistence of such viruses in tendons in vivo as has been reported for reoviruses in experimental tenosynovitis (Olson and Kerr, 1967;Jones and Onunkwo, 1978).…”

Section: Discussionmentioning

confidence: 54%

Organ culture studies on adenoviruses isolated from Tenosynovitis in chickens

Georgiou

Jones²,

Guneratne³

1983

Avian Pathology

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SUMMARYFive strains of adenovirus isolated from tenosynovitis in chickens were examined for their ability to grow in vitro in pieces of explanted tendon from 20-day-old chicken embryos from light or heavy breeds. Replicate tendon organ cultures (TOCs) were infected with three concentrations of each strain of virus and supernatant fluids were assayed for virus at intervals after infection up to 11 days. Two strains grew well in TOC, one moderately well, and the other two failed to grow. A strain of Newcastle disease virus (NDV), an agent not associated with tenosynovitis, also failed to grow. TOC from broiler embryos seemed slightly more susceptible to the two actively growing viruses than expiants from a light breed. Growth of the adenovirus was demonstrated by immunofluorescence staining of sections of TOC but the appearance of stained antigen was dependent on virus titre.

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The Duration and Distribution of Synovitis-Producing Agents in Chickens

Cited by 45 publications

References 0 publications

Epidemiologic assessment of trauma-independent skeletal pathology in non-passerine birds from museum collections

Epidemiologic assessment of trauma-independent skeletal pathology in non-passerine birds from museum collections

Longitudinal field study on the occurrence ofMycoplasma synoviaein Dutch turkey flocks with lameness and experimental induction of the condition

Organ culture studies on adenoviruses isolated from Tenosynovitis in chickens

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