Oh man, sounds like a sucky year! Were you breeding any of them this year? I only had one go off feed this year. I've still only got about 6 meals in him since November. He was a poor feeder from the start, 160 grams at 6 months old. Now he's almost 2 and only 450. Other than him, none of my male breeders went off feed so that was really nice. I tried a different tactic with them this year and it seemed to work!