Blood trailing is not the same as a track. or at least that is what I was told. Blood scent does not break down like a tract will, So a 16 hour hog track is not the same as a 16 hour blood trail.
That's right!
I pulled my 9 pound blood trailing wiener dog off the track of a gut shot deer around 5 o'clock one evening because the deer was still alive when she found it.
Took her back the next day after the morning hunt 16-17 hours later. Put her back on the track and she waisted no time leaving our lease and finding the dead deer better than a quarter mile on the neighbors place.
She would have taken that track and found that deer if it was 32 hours old.
My old blood trail beagle was borrowed by a buddy to find a doe that his uncle had lost. They brought her over there about 5 hours after the doe was shot. She found it quickly for them. He had lost a buck the morning before. Just for grins, they put her on the trail at that bow stand. She grinded it out, and they would find a puddle of blood along the way to confirm she was doing good on it. It took her a while, but she did find the buck. I think he said she took about an hour on it.
His uncle was completely impressed.