Tail hair tells tale of cattle`s diet -- Scientists trace grassland production
Thursday, April 28, 2011 - 11:01
in Biology & Nature
Tail hair can show if cattle have been grass-fed or not, according to scientists. By chemically analysing the tail hair, it is also possible for scientists to tell if, and when, a grass diet has been substituted for other types of feed over the past 12 months.