Morphological and histological identification of Paramphistomum cervi (Trematoda: Paramiphistoma) in the rumen of infected sheep

Vijayata Chaoudhary,J J Hasnani,Suchit S Pandya,Sunanda Pandey,P V Patel,Vandip D Chauhan,Mukesh K Khyalia

doi:10.14202/vetworld.2015.125-129

Abstract

Aim:This study was undertaken to identify Paramphistomum cervi on the basis of its morphology and histology to be the common cause of paramphistomosis in infected sheep and its differentiation from other similar Paramphistomes in Gujarat.Materials and Methods:Adult rumen flukes were recovered from the rumen of naturally infected sheep slaughtered in various abattoirs in Gujarat. Some adult flukes were flattened and stained in Borax carmine, and some were sectioned in the median sagittal plane and histological slides of the flukes were prepared for detailed morphological and histological studies.Result:Microscopic pictures of the parasite used in identification define the similarity in the morphology and histology of the anterior sucker, pharynx, esophagus, genital atrium, posterior sucker (acetabulum) and testes to the P. cervi.Conclusion:It can be concluded that the most common species found in sheep infected with Paramphistomosis is P. cervi on the basis of its histo-morphological appearance in Gujarat.

Highlights

Paramphistomum spp. are Platyhelminth parasites (Platyhelminthes: Trematoda: Digenea) responsible for Paramphistomosis i.e. gastrointestinal parasitic disease in domesticated animals, which causes heavy economic losses [1] to the livestock industry to the tune of several thousand crores of rupees annually [2]
It can be concluded that the most common species found in sheep infected with Paramphistomosis is posterior sucker (Ps). cervi on the basis of its histo-morphological appearance in Gujarat
Morphological and histological studies of all parasites revealed presence of P. cervi mainly in adult stage in the rumen of sheep infected with paramphistomosis as the most common species and etiology behind the economic impact of this disease and provides a solid foundation for studying the reproductive biology of Paramphistomes and other related trematodes using molecular techniques

Summary

Introduction

Paramphistomum spp. are Platyhelminth (flatworm) parasites (Platyhelminthes: Trematoda: Digenea) responsible for Paramphistomosis i.e. gastrointestinal parasitic disease in domesticated animals, which causes heavy economic losses [1] to the livestock industry to the tune of several thousand crores of rupees annually [2]. It has been a neglected trematode infectious disease in ruminants, but has recently come out as a significant cause of productivity loss [3,4,5,6,7]. P. cervi has di-heteroxenous life cycle, which involve snail

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