The research on the most important point for tolerance of bitter aversion in early childhood

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To expose bitter taste to pre-born mice, bitter solutions were injected to inside amnion liquid by surgical operation. To expose bitter taste to infant mice , their mother were fed with bitter solution instead to water. Then, the tolerance for bitter taste of new born mice were investigated by 48h two-bottle preference tests with the bitter solution and water. As a result, any difference in preference or aversion to bitter solution was not observed between pretreatment mice and intact mice. This result suggests that the taste preference of younger children would not be affected by their mother's diets in their fetal and lactation periods.