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Arquivo Brasileiro de Medicina Veterinária e Zootecnia

On-line version ISSN 1678-4162

Abstract

QAMAR, M.F.; BUTT, A.; EHTISHAM-UL-HAQUE, S.  and  ZAMAN, M.A.. Attributable risk of Capillaria species in domestic pigeons (Columba livia domestica). Arq. Bras. Med. Vet. Zootec. [online]. 2017, vol.69, n.5, pp.1172-1180. ISSN 1678-4162.  http://dx.doi.org/10.1590/1678-4162-7829.

Fecal samples were collected from 120 domestic pigeons to determine the Attributable risk of Capillaria spp. The Capillaria spp. was observed in 64 out of 120 (51%) pigeons (70 males and 50 females) under this study. A total of 64 (39 males and 25 females) were found naturally infected with Capillaria spp. with infection percentage of 51% and 50% in males and females respectively. Qualitative examinations include the direct microscopy and faecal floatation while quantitative examination includes McMaster technique (worms load was calculated per gram of the faeces). Month wise Attributable risk showed that eggs of the worms were found to be abundant in the month of July during the present study (60% to 73%) because of high humidity. Very high and very low temperature is not suitable for the proper development of the eggs. Qualitative and quantitative examination revealed that Capillaria spp. was more prevalent in males (51%) than females (50%) but overall there was no significant difference (P>0.05) in the male and female because both individuals invest equal amount of energy in search of food and incubating the eggs. Different breeds of pigeons gave different Attributable risk in different months during the study. Groups of pigeons from different locations showed different variable Attributable risk. Areas with high humidity were more suitable for the development of eggs, which is the reason why higher Attributable risk was observed in Shahdara (75%) area of Lahore, Pakistan.

Keywords : Attributable risk; Capillaria species; pigeons; Pakistan.

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