Fig. 1.
The three collars used for the trial (from left to right); Collar 1 - double-layer nylon and polyester weaved design (DN). Collar 2 - single-layer nylon weave design (SN) and Collar 3 - single layer canvas design (SC).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.