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Seroprevalence of Mycoplasma Gallisepticum Infection in Backyard and Commercial Layer Chickens in Bhola District, Bangladesh

Mahfuzul Islam
Veterinary Officer, Strengthening of Support Services for Combating Avian Influenza (HPAI) in Bangladesh Project, District Veterinary Hospital, District Livestock Office, Bhola, Bangladesh. At present: Department of Microbiology and Parasitology, Faculty of Animal Science and Veterinary Medicine, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh.

Jayedul Hassan
Department of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Md. Shahidur Rahman Khan
Department of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University,Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

This study aimed to determine the seroprevalence of Mycoplasma gallisepticum (MG) infection in the chicken population of Bhola district, Bangladesh, during the period from April 2011 to March 2012. A total of 480 blood samples from chickens were collected from different upazilas (sub-districts) of Bhola district. The sampling considered the types of chicken (backyard and commercial layer), age groups (pullet, adult and old) and seasons (summer and winter). On the basis of the serum plate agglutination test, 55.83% (n=268/480) chickens were found positive for MG. The MG infection was higher (62.5%) in backyard chickens as compared to those being reared in commercial farming systems (53.61%). With respect to age groups, the prevalence was highest in pullets (60.63%) followed by adults (55.63%) and old chickens (51.25%). Moreover, chickens reared in winter showed higher prevalence of MG (60.42%) as compared to those reared in summer (51.25%). In conclusion, MG infection is prevalent in the chicken population of Bhola district, Bangladesh. Appropriate strategies should be taken for successful prevention and control of this disease in Bangladesh.

Keywords: Backyard chicken, Bhola district, Commercial layer, Mycoplasma gallisepticum, Seroprevalence

Location: In the Laboratory of District Veterinary Hospital, District Livestock Office, Bhola

Start Date: 00-04-2011

End Date: 00-03-2012

Program Area: Pest Management

Commodity: Chicken

Objectives:

To determine the seroprevalence of MG infection in chickens of Bhola district, with a view to contribute in designing effective control strategies against MG in this region.

Methodology:

This study was conducted in the Laboratory of District Veterinary Hospital, District Livestock Office, Bhola district, Bangladesh. Study area and selection of birds: Sixty different backyard chicken rearing houses and 60 commercial layer farms were randomly selected in different upazila ssub-districts) of Bhola, a southern district in Bangladesh . A total of 480 blood samples were collected from the wing vein of unvaccinated and healthy chickens during the period from April 2011 to March 2012. The sampling considered the types of chicken (backyard and commercial layer), age groups (pullet, adult and old) and seasons (summer and winter Blood collection and serum preparation: From each live bird, 2 mL of blood was collected using sterilized syringes (5 mL), and blood was kept at room temperature for 2 hours. A clean straw colored serum was seen around the clotted clump. The serum was poured into a labeled screw capped vial and stored at -20ºC until use (Hossain et al., 2007.

Source of Information: J. Adv. Vet. Anim. Res., 1(1): 11-15, March 2014

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

MG is prevalent among chickens in Bhola district of Bangladesh and can cause severe economic losses. No significant difference was recorded in the sero prevalence of MG with respect to type and age groups of chickens. Seasons showed a significant effect on the prevalence of MG which was higher in winter. In view of these findings, efforts should be made towards educating the poultry farmers. Moreover, bio security should also be improved especially in commercial layer farms. A detailed study on the country-wide prevalence of MG should be designed to establish the current status of this disease in Bangladesh.

Knowledge Management: Journal