I always starve 'em first.
hehehe
that is of course, given that they have perfect body weight.
Tried it the first time with my BRB, gave him four weeks, and he snapped that baby right up. Then I tried it with my BP, same thing. Recently tried it with my Cay Caulkers (used to live and were a small pain to get to eat FT the first time and didn't want to stress them out with being so insistent the second time), and they too, snapped it right up after about 2.5 weeks of not eating.
If you're really worried, scent the rat too. I always rubbed the butt of the mouse on the rat all over the place (lots of scent glands).
The reason I had to do this the first time is because I was VERY ambitious and wanted to switch from live mice, to FT rats. After trying the starving method for various times, I have to say it's my favorite! But again, don't do it if they aren't of good weight.
Good luck Bill!
JB
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Jonathan Brady
My Kingsnake Photo Gallery