My fingers would get pretty sore opening all those capsules to fill a gallon jug. And a little too expensive.

I sun render walleye fat every year. Not much smell and all but a little comes back as pure oil. Walleye are loaded with fat that is easy to strip out of the guts. I sun render in half gallon mason jars. [/quote]
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They’re actually caplets, easily torn with a fingernail, stick, knife, etc. or just smashed, and can be found on Amazon for .07 cents per caplet, or less. Only need 1 per trap. Don’t understand why anyone would want to carry around a gallon jug of it, when a small bottle with 100+ caplets is so much easier to carry? Reminds me of a neighbor walking around the neighborhood with weights in her hands, constantly pumping. [/quote]
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Dixieland.......
I use fish oil as a trailing scent. A squirt bottle is used to lay a two to four foot trail leading to the trap. I use this method for coon and fisher.
Caplets Just wouldn't foot the bill.
I also use fish oil in some of my predator baits.
Nobody carries around a gallon jug and I don't know where you got that idea. Bigger bottle for refill goes in the truck or four wheeler and squirt bottle goes in lure bag.
Hope this clears things up.