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Effect of food on development of tadpoles of rana esculenta phenotype


Bulletin de la Societe des Amis des Sciences et des Lettres de Poznan Serie D Sciences Biologiques 21: 117-126
Effect of food on development of tadpoles of rana esculenta phenotype
Control tadpoles developed the most quickly. They were fed with food composed of 6 different components: pea of puree type, yolk of hard-boiled eggs, flaked oats, boiled lettuce, boiled potatoes and powdered nettle. Tadpoles which received only 1 kind of food metamorphosed later and some series of froglets differed from control ones in morphological features. In every series of tadpoles which were fed with boiled lettuce, boiled potatoes, or powdered nettle, some individuals did not reach metamorphosis in 116 days of observation. Froglets which developed from them were very similar to control ones as far as morphology, but their weights were almost half the weight, and their fat bodies were very small. All tadpoles which received puree pea, boiled eggs, or flaked oats reached full metamorphosis. The froglets were very vital; their body dimensions were similar or even larger than the control ones, and their fat bodies were very large. It is clear that these kinds of food were suitable for tadpoles, but according to morphological features some sets of froglets which developed from them were similar to froglets of R. lessonae. The water frog tadpoles which are designated for gentic studies should not receive only 1 kind of food, but a mixture different components.


Accession: 005239850



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