http://www.zinpro.com/lameness/dairy...identification
They have free CDs on scoring how your cow walks too:
http://www.zinpro.com/Portals/0/Imag...comotionCD.jpg
And free cow walking brochures:
http://www.zinpro.com/Portals/0/Imag...ngBrochure.jpg
Order the CD in Spanish for best results.
