Abstract
This study was conducted to investigate the pathoprevalence of different infectious diseases of goat at Sadar upazilla of Dinajpur district in Bangladesh. Infectious cases were recorded with respect to breed, sex, age and season from Upazilla Veterinary Hospital and District Veterinary Hospital, Sadar, Dinajpur during July, 2014 to June, 2015 and diagnosis was made on the basis of clinical history, clinical examinations and common laboratory techniques with histopathological examination. A total of 2139 infectious diseases were founded and categorized by the causal agents where the highest prevalence was observed in mixed infectious diseases (46.06%) followed by viral diseases (28.93%), internal parasitic diseases (9.77%), external parasitic diseases (8.42%), bacterial diseases (3.00%), protozoal diseases (2.01%) and lowest was in fungal diseases (1.83%). The prevalence of infectious disease was significantly higher at Jamunapari (55.12%) than Black Bengal (44.88%). Female goats were more susceptible (54.32%) than male (45.68%). The prevalence was varied according to age and highest was in G-1 (45.48%) followed by G-2 (36.48%) and G-3 (17.68%). Summer season (33.60%) was common for infections followed by winter (33.51%) and rainy (32.89%). Most of the internal lesions were produced by the endoparasitic infections which were examined microscopically. These results indicate that, the prevalence of various infectious diseases in the goats was higher at Sadar, Dinajpur thus, there is a need for an appropriate control measures in order to prevent and minimize the loss caused by such diseases and this study may help to develop strategies against the infectious diseases of goat.Asian J. Med. Biol. Res. June 2017, 3(2): 254-266
Highlights
Goat is one of the most important livestock species in Bangladesh and useful for low-income farmers, landless labors and distress women, who can‟t effort to rare cattle, goat is called “the cow of poor people”
Under the protozoal infection (1.59%) cases of coccidiosis was founded, among a large number of external parasitic diseases (5.75%) cases of lice infestation which was higher and from internal parasitic diseases the higher prevalence was in mixed internal helminth (9.12%)
Pathological lesions of endoparasitic diseases In ascariasis, grossly there was pale spot which extended shortly in liver parenchyma (Figure1) and microscopically we found parasitic granuloma composed of longitudinal section of larva in liver parenchyma surrounded by lymphocytic proliferation with fibrosis
Summary
Goat is one of the most important livestock species in Bangladesh and useful for low-income farmers, landless labors and distress women, who can‟t effort to rare cattle, goat is called “the cow of poor people”. In Bangladesh, at present, the approximate number of goats is 25.20 million (DLS, 2013). Goat usually suffer from many diseases of infectious and non infectious in origin (Singh and Prasad, 2008). Some infectious diseases are presently become a great threat to these animals survival in Bangladesh. Infectious diseases are disorders caused by organisms such as bacteria, viruses, fungi or parasites. The occurrence of diseases is an important factor which influences the productivity and economy of goat farming. Diseases in goats result in mortality and morbidity losses, resulting in lower production.
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