Determination of heat-exposure effects on the concentration of catecholamines in bovine plasma and milk.

@article{Katti1991DeterminationOH,
  title={Determination of heat-exposure effects on the concentration of catecholamines in bovine plasma and milk.},
  author={P S Katti and A M Katti and Howard D. Johnson},
  journal={Journal of chromatography},
  year={1991},
  volume={566 1},
  pages={29-38}
}
A reversed-phase high-performance liquid chromatographic method with electrochemical detection has been adapted for the determination of picogram concentrations of norepinephrine and epinephrine in bovine plasma and milk. This method has been used to monitor the levels of these catecholamines when lactating cows are exposed to heat stress under controlled conditions. In response to heat stress, epinephrine concentrations in milk and plasma were similar. However, norepinephrine concentrations in… CONTINUE READING