Gastro-intestinal nematodes are very common in chickens and indulge deleterious effects on health and productivity, resulting colossal economic losses. Here, we study the prevalence and some epidemiological factors of common nematodes that affects gastro-intestinal tract (GIT) by examining GIT of 500 indigenous chickens (Gallus gallus domisticus) from November 2011 to November 2014 We also conducted a structured questionnaire survey for demographic information and poultry raising practices. By morphologic and morphometric analysis, we identified A. galli and H. gallinarum from the GIT of chickens. The overall prevalence was 61% and prevalence of A. galli (282, 56%) was significantly higher than H. gallinarum (126, 25%). Prevalence of A. galli was significantly (P0.05) were observed on the prevalence of the worms in chickens reared in scavenging system or semi-scavenging system. Though, there were no significant differences on the prevalence, however, lower number of parasites (A. galli 38% and H. gallinarum 14%) were recovered from chickens treated with anthelmintics. Prevalence was higher in chickens (A. galli 61% and H. gallinarum 31%) reared in mud made and when chickens of different age group reared together. Significantly (P
Key words: Chicken, Ascaridia galli, Heterakis gallinarum, epidemiology
|
