Fig. 2

Boxplot of the von Frey monofilaments for six horses assessed 1Â h before, 24 and 48Â h after (procedure) implantation of a biopolymer in the subcutaneous space of the region of the neck board. Sensibility threshold was established for the diameter of the filament (0.432 to 1.143Â mm), and this value was converted to kg/force by a conversion scale available from the manufacturer