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Physiological and histochemical observations on the adult liver fluke, Fasciola hepatica L. II. Feeding



Physiological and histochemical observations on the adult liver fluke, Fasciola hepatica L. II. Feeding



Parasitology 38(3): 123-127



The gut contents of approximately 50 flukes were removed by dissection and studied by different histochemical methods. The adult F. hepatica feed primarily on blood. The oxyhemoglobin of the blood is converted to hemoglobin, to acid hematin (pH of the empty gut about 6.4). The blood is further concentrated by the removal of fluids and hemolysis occurs. Some of the hematin is absorbed by epithelial cells, the rest is concentrated as feces. Attempts to increase the survival time in vitro by the addition of blood have failed because of bacterial contamination.

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Accession: 013790329

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DOI: 10.1017/s0031182000023052


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