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egg mass and growth rate of biomphalaria alexandrina under laboratory conditions
Journal of the Egyptian Society of Parasitology. 1984; 14 (2): 377-85
in English | IMEMR | ID: emr-4597
ABSTRACT
Egg masses of B. Alexandrina are always laid below the water surface in yellowish, rounded to oval, gelatinous masses. The egg mass ranges from 2.5 x 2 mm with 4 eggs to 8 x 5 mm with 39 eggs.The incubation period ranges between 11-15 day in February [15.1-20.3°C] and 6-9 days in August [26.l-31.1°C]. At hatching the shell diameter varies between 0.6-0.7 mm and attains maturity [6.8-7.2 mm] within 80-85 days
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Index: IMEMR (Eastern Mediterranean) Main subject: Environment, Controlled Language: English Journal: J. Egypt. Soc. Parasitol. Year: 1984

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Index: IMEMR (Eastern Mediterranean) Main subject: Environment, Controlled Language: English Journal: J. Egypt. Soc. Parasitol. Year: 1984