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19991
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Subject: Veterinary Parasitology × End date: 1999 × Start date: 1999 × Type: Thesis × Thesis Type: M.V.Sc. ×
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    ThesisItemOpen Access
    Helminth parasites of mammals in Thrissur Zoo
    (Department of Parasitology, College of Veterinary and Animal Sciences, Mannuthy, 1999) Varadharajan, A; KAU; Pythal, C
    An investigation on the prevalence of helminthic infections among the wild mammals in captivity in the Thrissur Zoo and also the variations thereof on account of season, age and sex were carried out by regular faecal examination using the concentration method of centrifugation-cum-sedimentation technique, over a period of one year from May-'98 to April-'99. Non-specific symptoms like general ,weakness, debility, occasional diarrhoea, dehydration and respiratory distress with cough were observed in a variety of mammals. The overall prevalence of the helminthic infection among the mammals was 68.05 per cent. Carnivores had the highest prevalence of infection (75.34%) when compared to herbivores (67.47%) and omnivores (65.35%). Strongyle, Strongyloides spirurid, ascarid, amphistome, Fasciola, Trichuris and Parascaris infections in a variety of herbivores; strongyle, Strongyloides, spirurid, Ancylostpma, Capillaria, Toxocara, Trichuris, Metagonimus, Artyfechinostomum and Hymenolepis infections in a variety of omnivores and Ancylostoma, Toxocara, Toxascaris, Strongyloides, Capillaria, spirurid, Diphyllobothrium, Hymenolepis and Paragonimus infections in a variety of carnivores were observed. A few specimens of Haemonchus contortus were recovered from the abomasum of a 6 year old female balckbuck during post-mortem examination. The overall prevalence of infection among the mammals was higher in the rainy seasons (South-West and North-East monsoons) than in the dry season. The prevalence of, infection was higher in the adults of herbivores and omnivores than in the young ones of both the groups. The prevalence was also higher in the males of herbivores and carnivores than in the females and was more or less equal in both sexes of omnivores. Treatments with Fenbendazole and Pyrantel Pamoate were effective against gastro-intestinal nematodes in camels and in Asiatic lions respectively. Control measures for the helminthic infections in the zoo < mammals have also been suggested.