Consequences of Paramphistomosis in dairy cattle - A post-mortem finding
Published: July 22, 2008
By: Dr. K. Sathiyabama, Assistant Professor - Veterinary University Training and Research Centre, Cuddalore, Tamil Nadu, India
Introduction
Gastrointestinal infection caused by internal parasites have been recognized as one of the most common problems in livestock. Although, cattle are infected by wide range of internal parasites, while considering the mortality and morbidity caused by amphistomes in young stock were observed to be enormous (Lalitha and Anandan, 1986). In their study, Shanila Kumari and Md. Hafeez, 2005, reported that the prevalence of paramphistomosis infecion among cattle in Andhrapradesh was higher (7.1) during rainy season, cattle between the age group 1-3 years (7.6) and in cross bred animals (34.14) as compared to other seasons, age groups and breeds, etc. The present study describes about the consequences caused by paramphistome flukes observed under post-mortem examination of a dead cross bred dairy cattle.
Materials and Methods
Collected samples such as flukes (stomach worms) from rumen, dung samples and ruminal content were screened by microscopical examinations, identifieid and confirmed the etiology.
Post-Mortem Findings
Opening of the carcass of a dead Jersey cow showed normal of all internal organs, excluding rumen, mesentery and rectal wall. Examination of rumen revealed the presence of hundreds of free mature adult paramphistome flukes (stomach worms) in ruminal content. Of which some were found attached with rumen wall. Removal of all ruminal content showed erosive, deep/shallow and extensive patchy hemorrhagic lesion inside half of the rumen wall and hemorrhages and congestion in mesentery and rectal wall.
Results and Conclusion
Microscopical study of dung, ruminal content and smears made from crushing of flukes against the slides, all indicated the presence of eggs of paramphistomes. Based on the lesions, flukes existence and microscopical results, the sudden death of a Jersey cow was attributed to paramphistomosis. Farmers were adviced with the importance of deworming of animals.
References
1. Lalitha C.M., and Anandan R., (1986)-Survey of Amphistome parasites of ruminants -Cheiron, 15(6),202-205
2. Shanila Kumari P., and Md. Hafeez (2005) - Prevalence of Paramphistomosis in cattle in Chittoor district of Andhrpradesh , India- Journal of Parasitic Disesases. Vol. 29(1) pp01-08
Author: SATHIYABAMA KANNAN, Assistant Professor and Head
Veterinary University Training And Research Centre, Cuddalore-1 - Tamil Nadu [Madras] - India
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