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Changes in Dry Weight and Glycogen Content as Criteria for Measuring the Postcercarial Growth and Development of Schistosoma mansoni
R. W. Lennox and E. L. Schiller
The Journal of Parasitology
Vol. 58, No. 3 (Jun., 1972), pp. 489-494
Stable URL: http://www.jstor.org/stable/3278194
Page Count: 6
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Precise measurements of dry weight and glycogen content of individual worms were used as criteria in comparative studies of postcercarial growth of male and female Schistosoma mansoni. The growth rate and weight at maturity of males exceeded that of females, but only in the males did these 2 parameters show significant differences that could be related to the number of cercariae used to infect the host. Enzymic analyses of glycogen in worms during their postcercarial growth and development indicated that the ratios of glycogen content to dry weight change with time and that some dependent relationship may exist between the carbohydrate metabolism of male and female worms in copula.
The Journal of Parasitology © 1972 The American Society of Parasitologists