Editorial use only.
Bovine disease genetics research. Geneticist and technician preparing bovine DNA (deoxyribonucleic acid) samples for analysis by mass spectrometry. The results are used to assess whether changes in the DNA are associated with pinkeye (infectious bovine keratoconjunctivitis). This research is being carried out by the Agricultural Research Service (ARS) of the US Department of Agriculture. Photographed in the USA.
Model release not available. Property release not required.