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Effects of low temperatures on the red blood cell count of newts in wintertime

Bollettino Societa Italiana Biologia Sperimentale 60(1): 93-98

Effects of low temperatures on the red blood cell count of newts in wintertime

In wintertime, specimens of Triturus cristatus carnifex kept at C show a decrease in the concentration of circulating erythrocytes and marked hypertrophy of the spleen, in comparison to animals raised at C. Thanks to their capacity to accumulate a large number of erythrocytes in the spleen, newts can switch from their condition of seasonal hyperactivity, maintained by a high concentration of circulating erythrocytes, to hibernation. This is the reason why red blood cell counts made on freshly collected animals during the winter are extremely heterogeneous.

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Accession: 005312988

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