Abstract
domesticapigeons were collected from Ismailia city, Egypt, during the year 2017.They were found to be infected by intestinal helminths, two cestodes, Raillietinaechinobothridaand Cotugnia polyacantha and a nematode, Ascaridia columbae. Theheavy metals levels (Mn, Zn, and Fe) in pigeon's muscles and intestine, inaddition to helminths, were measured. R. echinobothrida revealed thehighest in heavy metals accumulation compared to C. polyacantha and A.columbae. Bioaccumulation factor was most obvious and dominant in musclesthan intestine of infected pigeons in respect to R. echinobothrida\ C.livia model ranked in concentration from highest to lowest as follows:(Mn>Zn>Fe), followed by A. columbae\ C. livia model. R.echinobothrida /C. livia , C. polyacantha/C. livia,and A.
Highlights
There is a necessity to evaluate the relationship between parasitism and pollution considering parasitism as a crucial factor in evaluating environmental stressors (Hudson et al, 2006; Sures, 2006)
They were transferred to the laboratory, and euthanized, dissected and the separated parts of the alimentary canal of the pigeons were taken in 0.85% normal saline solution to collect helminths parasites
Heavy Metals Concentrations in Pigeon's Tissues and Helminths: All element levels were found to vary according to analyzed tissue and parasites (Figure 1)
Summary
There is a necessity to evaluate the relationship between parasitism and pollution considering parasitism as a crucial factor in evaluating environmental stressors (Hudson et al, 2006; Sures, 2006). Parasites respond to anthropogenic pollution in different ways which made it attracting attention as potential indicators of environmental quality (Sures, 2008; Vidal-Martínez, 2010). Heavy metals are considered as critical contaminants in the environment, due to their high potential to enter and accumulate in food chains (Erdogrul and Erbilir, 2007). Less literature is available on the use of pigeon's endoparasites in environmental impact studies. In the past two decades, manuscripts including studies of hostparasite models challenged by heavy metal exposure were increased (Barus et al, 2012; Nachev et al, 2013; Hassan et al, 2016; 2018)
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