Study on the Raman spectral characteristics of dynamic and static blood and its application in species identification.

This paper proposes a method to identify the blood of 4 poultry species (chicken, duck, goose and pigeon) based on Raman spectroscopy and its baseline. Samples were prepared by pretreatment methods of freezing, thawing, and dilution. The Raman spectra of dynamic blood and static blood were measured, respectively, and the spectral differences between the two research schemes were analyzed. The four species of poultry blood were identified based on the Raman spectroscopy and its baseline. The results show that the method can realize the identification of four species of poultry blood. In addition, the potential of Raman spectroscopy as a technique for determining carotenoids in blood has been clearly confirmed, which opens up the possibility to quickly determine whether poultry eats feed containing carotenoids without sample preparation. [Display omitted] • Identifying the blood of 4 species of poultry based on Raman spectroscopy and baseline. • Detecting the characteristic Raman spectra of carotenoids in chicken blood. • Proposing a new method to analyze feed additives in blood based on Raman spectroscopy. • Comparing the spectral characteristics of static blood and dynamic blood. [ABSTRACT FROM AUTHOR]