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Studies on the Larval Cestodes of Zoonotic Importance in Kerala with Special Reference to Hydatid
A study was made on larval cestodes of zoonotic importance in Kerala with special reference to hydatid. The investigations included incidence of hydatidosis in animals slaughtered in Kerala in relation to the species, organ involved, fertility status; some of the biochemical constituents viz. tot...
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| Format: | Ph.D Thesis |
| Language: | Undetermined |
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Mannuthy
Department of Veterinary Public Health, College of Veterinary and Animal Sciences
1978
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| 100 | |a Abraham J | ||
| 245 | |a Studies on the Larval Cestodes of Zoonotic Importance in Kerala with Special Reference to Hydatid | ||
| 260 | |a Mannuthy |b Department of Veterinary Public Health, College of Veterinary and Animal Sciences |c 1978 | ||
| 502 | |b MVSc | ||
| 520 | 3 | |a A study was made on larval cestodes of zoonotic importance in Kerala with special reference to hydatid. The investigations included incidence of hydatidosis in animals slaughtered in Kerala in relation to the species, organ involved, fertility status; some of the biochemical constituents viz. total nitrogen, protein, sodium and potassium and diagnostic tests; indirect haemagglutination and cason’s intradermal test. Data on incidence of cysticercus bovis was also collected simultaneously. Indirect haemagglutination test was carried out on sera samples collected from cattle and the observations studied in relation to the infection – status ascertained at post-mortem. Intradermal test was done on cattle brought for slaughter and results were confirmed during post-mortem. A high rate of hydatid infection was noticed in cattle and buffaloes (35.47 & 32.96% respectively) than in sheep and goats (2.55 & 1.05% respectively). There is a possibility for an increased environmental contamination in Kerala by the parasite. Lung and liver serve as the chief predileration sites of hydatids in these animals and right lung was found to be more frequently involved than the left. The fertility of hydatid cysts was high in all animals (68.89 to 93.33 %) and fertile cysts were more often encounted in the liver. Cattle and buffaloes also were found to serve as congenial intermediate hosts of the parasite. Total nitrogen content of hydatid cyst-fluid has not shown any difference between sterile and fertile cysts, protein content was significantly higher in fertile cyst-fluid and sodium and potassium significantly higher in sterile cyst-fluid. Sensitivity of indirect haemagglutination test was poor in pulmonary hydatidosis but better when liver was affected and best when more than one organ was involved. The use of standardized antigen having low nitrogen content is found to be better in intradermal test as it reduces false positive reactions. The studies indicate an inter relationship between organ affected, fertitlity, biochemical constituents and sensitivity of diagnosic tests in hydatidosis. Incidence of cysticerucus bovis in cattle slaughtered was found to be 0.74%. | |
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