I hunted hogs with dogs from texas to Argentina. In the USA it's always been with hounds for the bay and pits or Dogo's for the catch. In Argentina it is always Dogo's. While I write this I have a very old female Dogo sleeping on my foot.
The knives I used have been Cold steel trailmaster, Laredo, and I had a custom made knife done for me to my specs just to kill hogs.
The laredo to me was great with Blackhawk leather gloves. My son prefers the trailmaster.
I only seen hogs killed by a heart stab from under the armpit. The heart in a boar is placed hard to get from the front. Besides the front has the business end.
I would not ever use a serrated/teeth knife. Might grab and stick. The knife should be at least 11 inches. Not for most pigs probably 9 to 10 would work , but for the really big hog. There are more feral huge hogs here in the USA. Argentina has mostly Russian boar stock not crossed with domestic pigs.
The knife stab under the armpit is never withdrawn for another stab. Rather it is worked up and down destroying the heart.
I hunted with an ex-marine. He was a novice in hunting hogs. The K-bar he insisted using failed to kill the hog. The hog just got madder and madder. The dogs were saying
"What the ****" is this guy doing". It is very dangerous for a dog to latch onto a hogs face and hold on. It really is a joint hunt with the hunter dispatching the hog as fast as possible.
I described my Argentine knife before, do a search.
Regards,
Timber Man
PS there is a group of Doctors in Argentina who raise the best Dogo's in the world.
Marcello's dogs hunt.
His web site is
www.dogoman.com.ar
his site has lots of hunting pictures and pictures of knives.