Carbohydrate Contents of the Tapeworm Hymenolepis diminuta from Normal, Bileless, and Starved Rats

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Abstract
Freeze-dried 27-day-old Hymenolepis diminuta maintained for their last 7 days in bileless and starved Wistar strain rats contained one-half to one-fifth the amount of total carbohydrate and glycogen per 100 mg as found in 27-day-old tapeworms from normal hosts. Dried worms from bileless and starved hosts weighed on the average less than 100 mg, whereas worms from normal hosts weighed about 300 mg. In absolute amounts, tapeworms form normal hosts contained 111.8 mg total carbohydrates and worms from bileless and starved hosts contained only 6.9% and 5.2%, respectively, of this amount; and worms from normal hosts contained 98.5 mg glycogen, whereas those from bileless and starved hosts contained 6.8% and 4.7%, respectively, of this amount. Worms from bileless hosts were 59.7% the weight of starved worms yet contained 1.3 times and 1.4 times as much total carbohydrate and glycogen. The glycogen to total carbohydrate ratios in all three populations of worms were not significantly different, and ranged between 85. 3% (from bileless hosts) and 88.5% (from normal hosts).

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