Metabolic Adaptation of Yearlings and Two-Year Old Carps to the Wintering Conditions

摘要

Seasonal dynamics (October, February, and April) of ketone bodies (acetacetate, acetone, and β-hydroxybutyrate) in muscles, liver, and brain of yearlings and two-year old carps were under study. It was assayed the level of β-hydroxybutyrate activity in the same tissues of yearlings. The synthesis of ketone bodies in carp yearlings as a response to low surrounding seasonal temperature and starvation is an example of compensatory adaptation. In particular, the brain receives, at lacking exogenous nutrition, an additional energy source.