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Runa Kazi
Humayun Khan Bhashani
Saifur Shabnam
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Humayun Khan Bhashani
Saifur Shabnam
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Global Journal of Animal Breeding and Genetics

ISSN: 2408-5502 Vol. 4 (6), pp. 275-281, June, 2016                                                           

 

Full Length Research Paper

 

An epidemiological survey on the prevalence of ticks infestation in cattle 

 

Runa Kazi*, Humayun Khan Bhashani and Saifur Shabnam

 

Accepted 27 May, 2016

Epidemiology of tick infestations was studied in cattle at different upazila of Chittagong District from November, 2008 to May, 2009 to know the prevalence of ticks in relation to age, sex, breed, management of cattle, seasons of the year, topography of the area and different body parts of the host. A total number of 380 cattle were examined, of which 138 (36.31%) cattle were found infested. Three species of ticks were identified namely Boophilus microplus, Rhipicephalus sanguineus and Haemaphysalis bispinosa. The range of tick burden was 1 to 7 per four square inch of heavily infested area of Chittagong District. Mean tick burden was also high in case of B. microplus (2.77 ± 0.18) followed by H. bispinosa (1.03 ± 0.12) and R. sanguineus (0.83 ± 0.10). Prevalence was significantly (p<0.01) higher in cattle of 1.5 years of age (46.28%) than in cattle of >1.5 years of age (27.80%). Infestation of tick was significantly higher (p<0.01) in female (59.37%) than the male (35.83%) cattle. Tick infestation was more prevalent in local (43.82%) cattle than the cross-bred (24.13%) cattle. Field grazing (41.96%) cattle were more susceptible (p<0.01) to tick infestation than the stall-feeding (24.8%) animals. Prevalence of tick infestation was significantly (p<0.01) higher in summer (41.66%) season followed by winter (31.5%) season. Ticks were widely distributed in different parts of the host body such as ear, neck, tail, mammary gland, udder, groin and perianal region of which groin (48.75%) was most affected parts of animal body and face and neck (30%) was the least. Prevalence of tick infestation was significantly (p<0.01) higher in hilly area (44.44%) followed by plain area (30.27%). It is concluded that B. microplus is the main tick species identified and threatening to the cattle population in Chittagong District irrespective of age, sex, breed of the animal, seasons of the year and topography of the study area.

Key words: Epidemiology, prevalence, survey, infestation, cattle, tick.