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Mortality in Dhaka Zoo Due to Microbial Agents

Syed Ali Ahasan
Scientific Officer, Dhaka Zoo, Mirpur 1, Dhaka 1216, Bangladesh

Ahmed Ziaur Rahaman
Department of Medicine & Surgery, Dinajpur Government Veterinary College, Basherhat, Dinajpur 5200, Bangladesh

Abstract/ Executive Summary:

A total of 32 mortality cases of captive animals at the Dhaka Zoo due to various infections was detected and reconfirmed at two reference laboratories in Bangladesh during the period February 2000 to February 2006. Among the 22 different animal species studied, highest incidence was observed with gaur (15.6%), followed by spotted deer (12.5%), rhesus macaque (9.4%), common pea fowl (6.2%) and others (56.3%). A total 35 isolates belonging to six different genera was recovered from the diseased animals. Among the pathogens, Mycobacterium spp. was the most prevalent (27.8%), which was followed by Coccidioides immitis (19.4%), Escherichia coli (19.4%), Salmonella spp. (13.9%), Staphylococcus spp. (13.9%), and Aspergillus spp. (5.6%). Mycobacterium spp. and C. immitis showed the widest range of host susceptibility. Establishment of a standard microbiological laboratory at the Dhaka Zoo is necessary for early diagnosis of threatening infections among valuable captive animals in order to improve animal health as well as to reduce the morbidity rate.

Keywords: Mortality, Animal pathogens, Confirmatory diagnosis, Tuberculosis, Coccidioidomycosis

Location: Dhaka Zoo

Start Date: 00-02-2000

End Date: 00-02-2006

Program Area: Animal Health and Management

Commodity: Animal

Objectives:

To unveil and detect the organisms responsible for that mortality in advocating by pin point for further care, prevention and treatment of animals.

Methodology:

During the six-year period from February 2000 to February 2006, post-mortem samples of 32 captive animals belonging to 22 species died at the Dhaka Zoo due to infectious diseases were analyzed for aetiological diagnosis of infections agents. Preliminary aetiological diagnosis was carried out at the Research and Zoo Education Section of the Dhaka Zoo. For confirmation, the postmortem specimens were sent to the reference laboratories.

Source of Information: Bangladesh J Microbiol, Volume 24, Number 2, December 2007, pp 154-156

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The present study demands routine aetiological diagnosis of various infections among the captive animals of the Dhaka Zoo. Early diagnosis of curable infectious diseases would significantly reduce the mortality rate of the valuable animals in the zoo, for that a well equipped independent laboratory is required to be established in the Dhaka Zoo.

Knowledge Management: Journal