Pathological studies on helminth parasitic infection in mithun (Bos frontalis)

Abstract

A pathological study was carried out in different helminth parasite infection organs in 110 animals during the period from 2010 to 2016. Histopathological examination of hydatid cysts in the liver, showed extensive fibrous connective tissue proliferation with eosinophilic and lymphocytic infiltration, in lung, parenchyma showed severe emphysema with infiltration of alveolar macrophages and lymphocytes infiltration. In infection, polymorphonuclear infiltration in the sub-mucosa with hyper activity of goblet cells leading to occlusion of the gland was noted in the tissue sections. In amphistomiasis, intestinal mucosa showed diffuse hyperemia, thickening and ulceration. Petechiae were observed in the anterior part of the duodenum and jejunum. Presence of parasites in the abomasum revealed petechial haemorrhages on the mucousa. In infection, the rectum showed hypertrophy, hyperplasia and hyperactivity of the goblet cells. In some places there is focal aggregation of mononuclear cells.

Pathological Studies of Mecistocirrus digitatus Infection in Naturally Infested Mithun and Phere (Cross Bred of Mithun)

“…Rajkhowa et al (2003), has also described the symptom of iron-deficiency anaemia, intermittent constipation, loss of appetite, weight loss and progressive wasting. Chamuah et al (2017), has also characterized the Mecistocirrus digitatus from Mithun, which was almost morphologically similar with Haemonchus infection.…”

Cystic Echinococcosis: Current Scenario and Future Prospective

“…Among parasites, Hydatid cyst was recorded most commonly among mithun population due to sharing of sylvatic cycle with wild carnivores like dog, fox etc (Chamuah et al, 2005). The pathological interactions of Hydatid cyst in different visceral organs have also recorded with 16% incidence (Chamuah et al, 2017). Histopathological examination of hydatid cysts in the liver, showed extensive fibrous connective tissue proliferation with eosinophilic and lymphocytic infiltration, in lung, parenchyma showed severe emphysema with infiltration of alveolar macrophages and lymphocytes infiltration.…”

“…Surrounding the cyst, there was presence of alveolar macrophages with lymphocytic infiltration. Spleen showed cystic cavity formation with accumulation of few necrotic debris and scolices (Chamuah et al, 2017). A preliminary work has been done to identify the strain of E. granulosus present in Mithun in Arunachal Pradesh.…”

Parasites of mithun (Bos frontalis) in North Eastern hilly region of India-A review

“…Pathology of other gastrointestinal helminths were extensively studied from mithun from Arunachal Pradesh (Chamuah et al 2017a). Histopathological examination of hydatid cysts in lung parenchyma showed severe emphysema with the presence of cyst and collapsed hydatid membrane.…”