Recurrent Incidence of Marek's Disease in Native Breed Chickens

Balasubramaniam, Ambikaipakan; Saravanajayam, M.; Arulmozhi, A.

doi:10.5958/2277-940x.2017.00121.8

Cited by 3 publications

(2 citation statements)

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“…(2017) [3] , Makwana et al (2018) [14] and Das et al (2018) [5] . Paleness of combs might be due to viral induced anaemia (Heidari et al, 2016) [7] .…”

Section: Biochemical Parametersmentioning

confidence: 99%

Clinico-pathological and Immunocytochemical studies on Marek’s Disease in poultry

Reddy¹,

Kumar²,

Amaravathi³

et al. 2021

Pharma Innovation

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The present investigation was carried out on layer flock belong to Livestock farm complex, College of Veterinary Science, Tirupati. Among 500 birds 41 birds revealed lesions suspected for Marek's disease and morphologically diagnosed on the basis of gross lesions, cytological smears and immunocytochemistry of different organs. Haematological and biochemical examination revealed significant increase in the lymphocytes count, AST, triglyceride levels and significant decrease in cholesterol levels in the Marek's disease affected birds when compared to normal birds. Clinically, birds affected with Marek's disease revealed emaciation, depression with drooping of the wings, anorexia, gasping, reduced weight gain, diarrhoea, pale combs, wattles with presence of nodules on combs, marked reduction in egg production and reduction in size of eggs. Few birds exhibited paralysis with inward curvature of the toes and death of the birds in few days after showing the clinical signs. Grossly, visceral organs (liver, heart, lungs, kidney, ovary, spleen, thymus, pancreas, proventriculus) were enlarged with presence of focal to discrete nodules. Cytological examination of the impression smears collected from the growths of the affected organs during necropsy revealed infiltration of pleomorphic lymphoid cells with thin rim of basophilic cytoplasm. Immunocytochemical staining of the smears revealed moderate to severe immunopositive reactivity for MDV antigens in the cytoplasm of the lymphoid cells.

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“…(2017) [3] , Makwana et al (2018) [14] and Das et al (2018) [5] . Paleness of combs might be due to viral induced anaemia (Heidari et al, 2016) [7] .…”

Section: Biochemical Parametersmentioning

confidence: 99%

Clinico-pathological and Immunocytochemical studies on Marek’s Disease in poultry

Reddy¹,

Kumar²,

Amaravathi³

et al. 2021

Pharma Innovation

View full text Add to dashboard Cite

show abstract

“…The presence of high level (>0.02 ppm) of aflatoxin than the permissible limits (0.02 ppm or 20 ppb) in feed aggravated the MD outbreaks. Balasubramaniam et al (2017) reported an outbreak of visceral (acute) form of Marek's disease (MD) in two different flocks of 12 week-old non-descriptive chickens reared for meat purpose in Tamil Nadu [15] . Genetic constitution, sex, age, immune status of chicken, environmental factors and stress level are major decisive factor for the disease progression.…”

Section: Epidemiologymentioning

confidence: 99%

Dynamics of Marek’s disease in poultry industry

Chauhan¹,

Singh²,

Singh³

et al. 2021

Pharma Innovation

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Marek's Disease (MD) is a highly contagious disease of poultry birds and readily spread from one bird to another. The MD Virus (MDV) has the tendency to survive in the litter for long periods of time and yet retaining its pathogenicity, thus creating outbreak at any point of time and causing huge losses to the poultry farmers. This property of MDV makes it utmost important to understand the disease dynamics of MD in the form of its epidemiology information allied to prevalence, outbreaks, morbidity, mortality and surveillance. Commercial poultry farming is totally based on the economic considerations and hence the mortality leads to huge economic losses, thus studying economic impact is also concerned with the dynamics of disease. The dynamism in serotypes of the virus makes the vaccines ineffective and leads to the frequent outbreak of disease. Therefore, the biological and molecular identification of the changing serotypes may lead to the effective control of the disease which will lead to economic stability among poultry farmers.

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Pathological Studies on Acute Marek’s Disease in Native and Crossbred Chickens of Organized Poultry Farm

Makwana

Joshi

Ghodasara

et al. 2018

IJVSBT

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The present study was aimed to detect the occurrence of Marek’s disease in a native and cross-bred chickens based on gross and microscopic lesions. Seven different native as well as crossbred strains of poultry flocks were evaluated the mortality pattern based on farm as well as autopsy records and for the gross and microscopic examination of the birds suspected for Marek’s disease. Visceral lymphomas like lesions were recorded in liver, spleen, proventriculus, heart, kidney and gonads. Fragments of the affected organs were collected and placed in 10% formalin for routine histopathology. Under microscopic examination, pleomorphic population of lymphocytes and lymphoblasts were observed. The incidence of MD observed was from 12 to 61 weeks of age with peak mortality from 12 to 31 weeks of age during summer in different strains. The strain wise mortality due to MD ranged between 13.42 (random bred controls) to 36.57% (IWN×Native, F1) with an average of 26.80 %, and it was higher in female than male birds.

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Recurrent Incidence of Marek's Disease in Native Breed Chickens

Cited by 3 publications

References 0 publications

Clinico-pathological and Immunocytochemical studies on Marek’s Disease in poultry

Clinico-pathological and Immunocytochemical studies on Marek’s Disease in poultry

Dynamics of Marek’s disease in poultry industry

Pathological Studies on Acute Marek’s Disease in Native and Crossbred Chickens of Organized Poultry Farm

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