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Research Journal of Parasitology
Year: 2013  |  Volume: 8  |  Issue: 1  |  Page No.: 37 - 44

Lungworm Infestation in Piglets in Different Parts of Mizoram, India

G. Patra, H. Prasad, Jonathan Lalsiamthara, J.L. Kataria, David Malsawmkima and H. Lalrinkima    

Abstract: To obtain data on the incidence of lungworm infestation in piglets in different parts of Mizoram of India a survey was conducted during the calendar year 2011-2012 based on clinical and postmortem findings and in addition some biochemical and histopathological changes of affected lungs associated with Metastrongylus elongates infection were performed. The percent prevalence of lung worm infection in young piglets (upto 4-6 months old) was 40%. Clinically, infected piglets were exhibiting chronic and paroxysmal coughing with generalized unthriftiness. Histologically, tips of the lungs were found to be hard and become grayish or whitish. Histopathological studies revealed pulmonary emphysema. The alveolar cellular reaction of the affected lungs showed epithelialization of alveoli with infiltration of round cells, eosinophils, giant cells, fibers and lungworm eggs. Biochemical analysis of serum from infected piglets showed a significant increase in serum Alanine Amino Transferase (ALT), serum glucose, inorganic chloride, potassium and magnesium with a decrease in serum albumin, total protein and alkaline phosphatase with insignificant changes in the serum sodium level. The pork consumption in Mizoram is very high and pigs under four to six months of age showed the highest mortality rate with respiratory signs in different parts of this area during the study period. There was a serious herd problem associated with hypoproteinaemia, hyperglycaemia and reduced growth rate.

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