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United States Department of Agriculture

Agricultural Research Service

Title: Photoluminescence spectroscopy for the discernment of plants within animal diets

Authors
item Rayson, Gary - NEW MEXICO STATE UNIV
item Obeidat, Safwan - NEW MEXICO STATE UNIV
item Anderson, Dean
item Landau, Serge - VOLCANI CENTRE, BET DAGAN
item Glasser, T - VOLCANI CENTRE, BET DAGAN

Submitted to: Proceedings of Pittcon Meeting
Publication Type: Abstract Only
Publication Acceptance Date: October 17, 2006
Publication Date: N/A

Technical Abstract: Identification of different animal diets of free ranging herbivores is of much interest. Spectroscopic probes offer the potential for real-time analyses compared to microphitological procedures. The inherent multi-dimensionality of photoluminescence spectroscopy (i.e., fluorescence and phosphorescence) is a significant benefit for the analysis of chemically complex samples. Unfortunately, analysis of multi-dimensional data requires the use of algorithms other than simple linear regression at a single wavelength. To evaluate the utility of multi-dimensional luminescence spectroscopy for animal diet determinations, the excitatin-emission spectral signatures of each of seven diet components (i.e., diet supplement concentrate, Pistacia lentiscus, Phylirea Latifolia media, Pinus Brutia, alfalfa hay and clover hay) were acquired. Post-digested diet samples (i.e., feces) resulting from each hay component were also included.

Last Modified: 4/19/2014
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