Eggs are not a good food item for bearded dragons. I suggest sticking to the foods and portions suggested at the following website:
www.beautifuldragons.503xtreme.com/home.html
The best way to increase a dragon's weight is not to give him 'junkfood' but to give him full access to healthy foods, well balanced salads, good insects etc. Silkworms, superworms, butterworms and hornworms sprinkled ontop of finely chopped greens ensures some greens are eating with the worms, for those dragons stubborn about eating their salads.
Offer live insects, all they can eat in a 10 minute period and leave greens available at all times.
It takes awhile to get good healthy weight on animals but start with giving them all the food they can eat. With access to healthy food and proper husbandry (heat, lights etc) they will put on weight.
If these are the same two dragons you were asking about whether they are fighting or breeding, and they are underweight, I suggest you don't try and breed them at all, keep the female separate.. better for her to not have to deal with laying eggs while being underweight, that will just put more stress on her.
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PHLdyPayne