Since these chickens have an upset GI tract and some blood in the droppings, now is not a good time to throw a lot of extras at them.With a balanced layer feed, chickens do not need or require anything else besides fresh water, as long as the feed is fresh and well balanced as most commercial feeds are. By giving extras, such as fruits, you may be lowering the protein levels, and sweets may cause diarrhea. I'm not saying to never give them a treat, but it is not required. If I have extra vegetables from my garden, I will give them some. But feeding more than 10% of those treats in the diet can change the nutrients that are required.