Getting males back to eating

I was wondering about how long does it take for a breeding male to start eating again. I have 2 males that are off feed. One has only been refusing for about a month and the other I'm not sure because I got him just a few weeks ago. The first one has lost about 75 grams and the second has lost over 100 grams just in the few weeks I've had him. My second female ovulated today and I cleaned and changed all of their tubs to get rid of the smell of the girls being receptive. I'm starting to get nervous because they are both starting to look really thin. I know it's common for males to stop eating at some point during the season but I'm having a hard time finding information about this topic. Any help would be appreciated


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