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The growth and chemical composition of three species of turtles fed on rations of pure foods
Author(s) -
Pearse A. S.,
Lepkovsky S.,
Hintze Laura
Publication year - 1925
Publication title -
journal of morphology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 74
eISSN - 1097-4687
pISSN - 0362-2525
DOI - 10.1002/jmor.1050410109
Subject(s) - biology , dextrin , casein , meal , composition (language) , chemical composition , food science , cod liver oil , body weight , zoology , chemistry , linguistics , philosophy , organic chemistry , starch , endocrinology
Painted turtles, gopher tortoises, and terrapins were fed on various mixtures of sand, salts, dextrin, casein, cod‐liver oil, wheat, eggs, lettuce, and meal worms. Each individual was weighted weekly for about a year and then killed for analysis, the water, ash, nitrogen, and fat being determined. Some individuals increased in weight as much as 75 per cent, others lost weight. Judged by growth and chemical analyses, the food requirements of chelonians, as representative poikilothermal vertebrates toward nutritive substances (including vitamines) are similar to those of homoiothermal animals.