11 ORNATRIX WITH V-RAY

To render realistic fur with V-ray, you need to add some gi and use a linear worflow. The best setting to render on in order to avoid the hair flickering, is Brute Force as the primary bounce, and lightcache as the secondary. If you want to render an animated sequence without the flickering issue, this is definitely the best way. You can also play with the AA filtering for smoother results on render, but it will be more time consuming.