Breeding with turtles

Is it possible? Searches haven't brought up anything about using turtles to breed.

I'm trying to breed a TON of pigs, but without the tedium. For testing, I put one in a two-deep 1x1 hole and put a (regular) turtle above it, put some carrots in the first slot, and tried turtle.placeDown() but it returns false. Seems this would work. Am I missing something?

There is a peripheral which adds in a bredding turtle upgrade- though I dont much on it. Sorry about that.
Here is the link:
http://www.computercraft.info/forums2/index.php?/topic/4587-cc153mc152-miscperipherals-33/

Dang. I just have CC and Forge. Not possible with that? (Yeah, I could get Misc Peripherals but my challenge is pure CC.)

Just an FYI in case someone comes across this later:

Yes, turtles can breed animals. I was not observant in my earlier testing. Place the food item in the turtle's inventory, position the turtle over the animal and do turtle.placeDown(). It should return true and use an item in the inventory. No hearts appear but if you repeat with another animal nearby, a new animal is born and experience orbs appear.

My current breeding program zig-zags over an 8x8 pit and attempts to feed at every spot multiple times. It returns to start and waits 20 minutes. I am thinking of doing a second or third pass to see if I missed any animals. One pass will drop about 10 levels of experience with 100 animals in the pit.