Abstract <p>Artificial selection of animals, aimed at enhancing or attenuatingtheir defensive response to humans, influences the variability oftheir regulatory systems and physiological functions, as well asthe seasonality of reproductive and metabolic cycles. Meanwhile,such a selection has not ever been paralleled by biochemical profilingof animals’ blood serum. The American mink <i>Neogalevison</i>, the seasonally breeding predator of the Mustelidaefamily, served a model object in studying the influence of selection onmammalian physiological functions. Over 27 generations of long-termselection for defensive responses to humans, two American mink strainswere bred, characterized by distinctly aggressive and tame behaviors,atypical for animals in industrial populations. The aim of thiswork was to analyze serum biochemical indices in tame vs. aggressivecage-raised American mink in the summer vs. fall seasons. It wasshown that both the season of the year and the behavioral type ofanimals influence serum biochemical indices. For instance, totalprotein, bilirubin, glucose, and uric acid levels were higher, whilealkaline phosphatase (ALP) activity was lower in fall compared tosummer, regardless of the behavioral type. Aggressive animals exhibitedhigher amylase activity and triglyceride levels but lower lipaseactivity in fall compared to summer. In the tame mink, aspartateaminotransferase (AST) activity and cholesterol levels were higherin fall compared to summer. Aggressive vs. tame animals were characterizedby higher albumin, glucose, and cholesterol levels, as well as higherAST, lactate dehydrogenase (LDH), and lipase activity in summer,while demonstrating higher glucose and LDH but lower urea and ALPlevels in fall. Thus, serum metabolic indices in the American minkundergo changes during long-term behavioral selection, while individualbiochemical parameters retain seasonal fluctuation, reflecting evolutionaryadaptation of the American mink to cyclic environmental changes.</p>

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Biochemical Blood Serum Indices in a Male American Mink (Neogale vison) Involved in Selection for Tame and Aggressive Behavior

  • E. V. Panova,
  • S. N. Kalinina,
  • O. V. Trapezov,
  • V. A. Ilyukha

摘要

Abstract

Artificial selection of animals, aimed at enhancing or attenuatingtheir defensive response to humans, influences the variability oftheir regulatory systems and physiological functions, as well asthe seasonality of reproductive and metabolic cycles. Meanwhile,such a selection has not ever been paralleled by biochemical profilingof animals’ blood serum. The American mink Neogalevison, the seasonally breeding predator of the Mustelidaefamily, served a model object in studying the influence of selection onmammalian physiological functions. Over 27 generations of long-termselection for defensive responses to humans, two American mink strainswere bred, characterized by distinctly aggressive and tame behaviors,atypical for animals in industrial populations. The aim of thiswork was to analyze serum biochemical indices in tame vs. aggressivecage-raised American mink in the summer vs. fall seasons. It wasshown that both the season of the year and the behavioral type ofanimals influence serum biochemical indices. For instance, totalprotein, bilirubin, glucose, and uric acid levels were higher, whilealkaline phosphatase (ALP) activity was lower in fall compared tosummer, regardless of the behavioral type. Aggressive animals exhibitedhigher amylase activity and triglyceride levels but lower lipaseactivity in fall compared to summer. In the tame mink, aspartateaminotransferase (AST) activity and cholesterol levels were higherin fall compared to summer. Aggressive vs. tame animals were characterizedby higher albumin, glucose, and cholesterol levels, as well as higherAST, lactate dehydrogenase (LDH), and lipase activity in summer,while demonstrating higher glucose and LDH but lower urea and ALPlevels in fall. Thus, serum metabolic indices in the American minkundergo changes during long-term behavioral selection, while individualbiochemical parameters retain seasonal fluctuation, reflecting evolutionaryadaptation of the American mink to cyclic environmental changes.