Gene,
There is a lot of debate among shrimpers surrounding bait. There seems to be a few constants too -- for example, everyone seems to believe in the use of cat food. Oils seems to be universally favored. Personally, I am in the camp that believes that if I pull up a pot after a couple of hours, and it still has bait in it, the bait needs to be finer. My camp believes you want the bait to flow out into the water so the shrimp "follow" it to the trap; others believe that you want bait in the trap to keep the shrimp there.
I'm not sure you want to go thru all this bother just for a few sets. Much easier to just throw in some cat food and maybe mackerel and/or chicken. But anyway here's what I do. I make bait from fish pellets (finely ground), cat food, canned mackerel, and olive oil. I grind the pellets in an old Cuisinart; then mix in the rest with a big paint stirrer on the end of an electric drill. This makes a kind of goo. I make 1/2 cup "balls" and vacuum pack those in packets of 2 before freezing. I've also heard that fish based fertilizer is a good substitute for the somewhat expensive fish pellets, but I've never tried it.
I've tried different proportions, but lately I've been using:
makes ~48 x 1/2 cup balls
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- 12 cups bait pellets (4 lbs 4oz)
- 3 cups olive oil
- 5 x 13 oz can Frikies
- 4 x 16 oz can Mackerel