Pathology of Mycoplasma gallisepticum infection in naturally infected layer birds

Thilagavathi, K.; Sivaseelan, S.; Balasubramaniam, G.A.; Balasubramaniam, Ambikaipakan

doi:10.5958/0973-970x.2016.00077.8

Cited by 3 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All the E Coli infected birds revealed airscculitis as a consistent lesions. All gross and microscopic lesions noted in MG/MS and E. coli infection in the present study were in accordance with the findings of Ley, (2003), Kleven, (2003 and Thilagavathy et al (2016).…”

Section: Resultssupporting

confidence: 93%

Pathology and Molecular Diagnosis of Mycoplasma gallisepticum and Mycoplasma synoviae Infections in Broiler Chickens from Western Maharashtra, India

Bagal¹

2019

JAR

View full text Add to dashboard Cite

Mycoplasma gallisepticum and Mycoplasma synoviae are worldwide in distribution including India and causes heavy economic losses to the poultry industry. The present study confirms the incidence of M. gallisepticum and M. synoviae infections by gross and microscopic pathology and PCR in broiler chickens. Incidence of pathogenic Mycoplasma spp. in broiler chickens with respiratory lesions was found to be 26.66%. Out of total 60 flocks, 6 flocks (10%) were found positive for M. gallisepticum and 12 (20%) were positive for M. synoviae. The incidence of M. synoviae was found to be higher than M. gallisepticum. Catarrhal tracheitis, focal pneumonic consolidation of lungs and airsacculitis were consistent lesions in M. gallisepticum and M. synoviae positive broiler chickens. However, synovitis/arthritis was not observed in any of the flock positive for M. synoviae. Incidence of E. coli amongst broiler chickens with respiratory lesions was found to be 40% by PCR targeting 16S rRNA gene and was higher than Mycoplasma spp. Mixed infection of M. gallisepticum and E. coli was detected in 3(9.09%) flocks, M. synoviae and E. coli in 4 (12.13%), M. gallisepticum and M. synoviae in 1(3.03%) and M. gallisepticum, M. synoviae and E. coli combined infection was detected in 1 (3.03%) flock. Mixed infection of M. gallisepticum and E. coli, M. synoviae and E. coli and M. gallisepticum, M. synoviae and E. coli revealed moderate to severe lesions of chronic complicated respiratory disease.

show abstract

Section: Resultssupporting

confidence: 93%

Pathology and Molecular Diagnosis of Mycoplasma gallisepticum and Mycoplasma synoviae Infections in Broiler Chickens from Western Maharashtra, India

Bagal¹

2019

JAR

View full text Add to dashboard Cite

show abstract

“…The histopathological findings were in accordance with Islam et al (2011) and Rauf et al (2014). The histopathological changes were suggestive of moderate to severe subacute to chronic nature of the infection which was consistent with the earlier reports on the pathology of avian mycoplasmosis (Gaunson et al2000;Sivaseelan and Balsubramaniam, 2013;Thilagavathy et al, 2016).…”

Section: Resultssupporting

confidence: 91%

Detection of Mycoplasma galliseptium infection in chickens from Tamil Nadu State of India

Manimaran

Mishra

Hemalatha

et al. 2018

IJAR

View full text Add to dashboard Cite

Mycoplasma gallisepticum (MG) is one of the major respiratory tract pathogens affecting chickens. It causes Chronic Respiratory Disease (CRD) among chickens of various age groups. The present study describes the isolation, molecular detection and histopathological changes associated with CRD in chickens. A total of 790 samples viz., trachea, lungs and air sacs were collected from chickens showing the symptoms of CRD from different parts of Tamil Nadu state. All the samples were processed for isolation and molecular detection of MG. A total of 91 samples were found positive by isolation and 105 samples were found positive through MG specific PCR targeting 16S rRNA gene. The histopathological changes in tissue samples of trachea, sinuses, air sacs and lungs collected from naturally infected M. gallisepticum infection were suggestive of subacute to chronic nature of infection. Though isolation is considered to be a gold standard, still PCR is a rapid, sensitive and cheap method for early diagnosis of MG which can help poultry farmers to avoid severe economic loss.

show abstract

“…Macroscopic and microscopic changes in organs and tissues consisted of swelling of the tracheal epithelium and the presence of necrosis, loss of the eyelashes and mucous layer covering the entire trachea. In the lungs, congestion, hemorrhage, focal necrosis, and leukocyte infiltration, especially due to lymphocytes (Borkhsenius et al, 2002;Rottem, 2003;Islam et al, 2011;Majumder et al, 2014;Ron et al, 2015;Majumder & Silbart, 2016;Mathis & Ackermann, 2016;Thilagavathi et al, 2016;Khatoon et al, 2018;Muhammad et al, 2018). In studying the immune status of 30-day-old chickens in patients with respiratory mycoplasmosis, we established the prevalence of the cellular level of immunity.…”

Section: Systemic Immunity Of Chickens With Respiratory Mycoplasmosismentioning

confidence: 99%

“…The epizootic process of diseases of this group is governed by the law of stress, and prevention is provided by bringing conditions of retention to the needs of the organism, because due to the constant presence of the pathogen in the body (persistence) specific prevention of the disease is not effective (Aleksyeyeva, 2009;Mathis & Ackermann, 2016;Shanmugasundaram et al, 2018). The development of immunopathological processes caused by the causative agent of respiratory mycoplasmosis is the ability to damage the endothelium of blood vessels, impaired microcirculation, the formation of microthrombosis, edema and fibrotic degeneration of tissues (Rosengarten et al, 2000;Thilagavathi et al, 2016). It is the impact on the body of birds of various external, including anthropogenic factors, which as synergists activate the pathogenic properties of microorganisms, and leads to clinical manifestation of the disease (Much et al, 2002;.…”

Section: Introductionmentioning

confidence: 99%

Systemic immunity of chickens with respiratory mycoplasmosis at poultry farms with various production

Gavrilin¹,

Алексеева²,

Gavrilina³

et al. 2020

Ukr J Ecol

View full text Add to dashboard Cite

Experimental studies were conducted on the basis of the Research Center for Biosafety and Environmental Control of Resources of the Agroindustrial Complex of the Dnipro SAEU, poultry farms of different directions of productivity of Donetsk-Prydniprovsky region of Ukraine in the period from 2016 to 2019. The purpose of the work is to determine the nature of pathomorphological changes and the status of systemic immunity in chickens with respiratory mycoplasmosis at poultry farms with various production. To determine the immunodeficiency and immunopathological conditions of a productive poultry with respiratory mycoplasmosis, a comprehensive immunological study was performed. Significant fluctuations in the absolute and relative values of leukograms and immunograms have been established, indicating a significant immunological alteration in chickens with respiratory mycoplasmosis. The most significant changes in the status of systemic immunity are found in chickens with respiratory mycoplasmosis at poultry farms with meat production, which are subject to more longer and more intense influence of human activity.

show abstract

Pathology of Mycoplasma gallisepticum infection in naturally infected layer birds

Cited by 3 publications

References 0 publications

Pathology and Molecular Diagnosis of Mycoplasma gallisepticum and Mycoplasma synoviae Infections in Broiler Chickens from Western Maharashtra, India

Pathology and Molecular Diagnosis of Mycoplasma gallisepticum and Mycoplasma synoviae Infections in Broiler Chickens from Western Maharashtra, India

Detection of Mycoplasma galliseptium infection in chickens from Tamil Nadu State of India

Systemic immunity of chickens with respiratory mycoplasmosis at poultry farms with various production

Contact Info

Product

Resources

About