Haemoprotozoan infection in ducks: prevalence and pathology

Abstract

The prevalence of haemoprotozoa in duck and pathological changes produced by these parasites were studied in different areas of Mymensingh district during July, 2007 to December, 2007. In this study 60% ducks were found to be infected with haemoprotozoa. Two species of haemoprotozoa were identified such as Leucocytozoon caulleryi and Leucocytozoon simondi. Prevalence of L. caulleryi (54.67%) was significantly (P<0.01) higher than that of L. simondi (5.33%) in ducks. The calculated odds ratio implied that ducks were 19.67 times more susceptible to L. caulleryi infection than L. simondi infection. Prevalence of haemoprotozoa was significantly (P<0.01) higher in male (78.94%) than female ducks (53.57%). Pathological lesions were observed in case of Leucocytozoon sp. infections. Grossly lungs were congested but other suspected organs such as liver, lungs, kidney and heart were apparently normal. Microscopically, comma shaped organisms were found in the hepatocyte of liver and alveolar epithelial cell of lungs accompanied with eosinophilic infiltration. Schizonts were also observed in the hepatocyte of liver and alveolar epithelial cell of lungs. The lungs alveoli were distended and ruptured in advanced stages. According to the result, it may be concluded that haemoprotozoan infection in duck is highly prevalent in Bangladesh and produces clinicopathological lesions in duck. So proper control measures should taken to reduce the prevalence of haemoprotozoa of duck in Bangladesh.

Survey of Haemoparasites and Haematology of Scavenging Ducks (Anas Platyhyncha) in Owerri Southeastern Nigeria

“…The 40% occurrence of haemoparasites among ducks in this work is high, but partially agrees with Dey et al, (2008) who reported a prevalence of 60% in Bangladesh and not in conformity with the findings of other researchers like Osho and Agoi (2004), who reported a prevalence rate of 20% of duck haemoparasitism in south western Nigeria and Sengal et al, (2006), that reported 8.1% and 2.1% prevalence rates in two regions of Uganda for Anas platyrhyncha. The differences may be due to the fact that the finding in south western Nigeria was on Muscovy ducks, while that of Uganda may be attributed to themanagement practices, geographical location of this African country and probably season of the year that their research was carried out.Our study was conductedduring the rainy season, as this is the period that the vectors of most infecting pathogens thrive well.…”

Prevalence of malaria parasites in indigenous chickens and ducks in selected districts of Bangladesh

“…was 10.5% and 2.1%, respectively. Dey et al (2008a) and Dey et al (2008b) reported 33.3% and 60.0% prevalence of Plasmodium spp. and Leucocytozoon spp.…”

Pseudomalaria in a domestic pigeon: a case report

“…The parasitaemia in the current study was recorded around 5 %. High parasitaemia can lead to clinical illness in stressed or immunocompromised birds (Greiner and Ritchie 1994) and heavy mortality has been reported due to acute form of infection in nestling pigeons (Dey et al 2008). The infection was further confirmed by PCR assay targeting a 207 bp fragment of cyt b gene specific for H. columbae (Fig.…”