A SURVEY OF FRESHWATER SNAILS OF VETERINARY AND MEDICAL IMPORTANCE IN ZARIA AREA, NIGERIA
A SURVEY OF FRESHWATER SNAILS OF VETERINARY AND MEDICAL IMPORTANCE IN ZARIA AREA, NIGERIA
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Date
1992-07
Authors
HOSEA, ZAKKI YULA
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Abstract
The survey of freshwater snails carried out in
Zaria area, Nigeria, from July 1990 to June 1991, using
10 to 15 minutes man sampling method, revealed five
species of snails, thus, Bulinus globosus, Morelet;
Biomphalaria pfeifferi, Krauss; Lymnaea natalensis,
Krauss; Bulinus forskali,Ehrenberg; which are pulmonates,
and a species of prosobranch, Melanoides tuberculata,
Miller. The distribution of these snails varied because
the differ in tolerance of pH, temperature, vegetation
and habitats. Temperature and pH ranges observed during
the study, fall within the ranges required for snails
survival and development.
The mean values of the measurement of furcocercous
cercariae shedded by L. natalensis, B. globosus and
B. Pfeifferi correspond to cercariae of Schistosoma
bovis, S. haematobium and S. mansoni respectively.
B. forskali under laboratory conditions was not
susceptible to Schistosoma haematobium miracidia
infection.
Description
A THESIS SUBMITTED TO THE AHMADU BELLO UNIVERSITY,
ZARIA, IN PARTIAL FULFILLMENT OF THE REQUIREMENT FOR
THE DEGREE OF MASTER OF SCIENCE
DEPARTMENT OF VETERINARY PARASITOLOGY AND
ENTOMOLOGY
FACULTY OF VETERINARY MEDICINE
AHMADU BELLO UNIVERSITY
ZARIA, NIGERIA
JULY, 1992
Keywords
SURVEY,, FRESHWATER,, SNAILS,, VETERINARY,, MEDICAL,, IMPORTANCE,, ZARIA AREA,, NIGERIA.