An Outbreak of Marek’s Disease in Adult Layer Chickens in Umuahia, Abia State, Nigeria

Journal Title: Annual Research & Review in Biology - Year 2015, Vol 7, Issue 3

Abstract

Between the months of May and August, 2014, a disease outbreak in two small poultry farms consisting of 600 and 550 Isa Brown layers both located in Umuahia, Abia state was reported to the Veterinary Teaching Hospital of Michael Okpara University of Agriculture Umudike. The two flocks, ages 31 and 41 weeks respectively, were vaccinated with MD vaccine mixed with gentamicine at day old. The clinical signs observed in the layers were paleness of the comb, emaciation, marked reduction in egg production, low morbidity and mortality rates of 4.7% and 2.3% in the first farm and 9.5% and 2.7% in the second farm. Postmortem revealed prominent neoplastic nodular lesions in their visceral organs. The histopathology of the affected organs of the birds showed highly pleomorphic lymphoid proliferation of the tissues. Based on the clinical signs, postmortem lesions and histopathology, the disease was diagnosed as acute Marek’s disease.

Authors and Affiliations

C. Okonkwo

Keywords

Related Articles

CTLA4 Expression in Childhood Asthma and the Effect of Treatment with Inhaled Corticosteroid and Leukotriene Receptor Antagonist

Aims: Cytotoxic T lymphocyte antigen 4 (CTLA4), an important regulatory molecule in the process of antigen presentation, was previously associated with the pathogenesis of autoimmune diseases and asthma. Therefore, the g...

Intra-articular Injection of Ascorbic Acid and Dexamethasone for Management of Osteoarthritis in Dogs

Aims: The study was conducted to evaluate the beneficial effects and clinical outcome of intra-articular administration of ascorbic acid and dexamethasone for the management of osteoarthritis in dogs. Study Design: The s...

Control of Glossina spp (Diptera: Glossinidae) by Pathogenic Organisms and their by Products

Tsetse flies Glossina spp (Diptera: Glossinidae) are the dominant vectors of trypanosomes, causative organisms of human African Trypanosomiasis (HAT) and Animal African Trypanosomiasis (AAT) on the African continent. Pri...

Nonglycine Residues in Proteins should most likely have an Allowed Conformation with a Negative Value for Backbone Torsion Angle f

Backbone torsion angles ,  of a vast majority of nonglycine residues in proteins lay within the peculiar insulated regions in the (,) space assigned to the conformations allowed for nonglycine residues that embrace t...

Breed Effects on Nutritive Value, Carcass and Non-carcass Components of Spent Hens of Nigeria Region

A study was carried out to determine the nutritive value, carcass and non-carcass characteristics of spent hens of Brown Nera exotic strain and the Normal-Feathered local hens in Nigeria with a view to ascertaining their...

Download PDF file
  • EP ID EP353460
  • DOI 10.9734/ARRB/2015/18418
  • Views 105
  • Downloads 0

How To Cite

C. Okonkwo (2015). An Outbreak of Marek’s Disease in Adult Layer Chickens in Umuahia, Abia State, Nigeria. Annual Research & Review in Biology, 7(3), 200-205. https://europub.co.uk/articles/-A-353460