Nice try. I feel that even with steel toe-caps you will be lucky to have sufficient effect upon a large bovine to render it insensible in the first attack. Assuming this failure cows are remarkably fleet-footed and, given the confines of the pit and the height of the cow a second blow would be a matter of luck. Have you ever been in close proximity to a mad cow? They are quite scary, could you demolish a dry stone wall in one attack? In view of the above I feel that your submission needs further substantiation. Once again, nice try.
You fail to specify the breed/age of cow, which is a significant factor and the brand of boot.