Chickens under 20 weeks, especially, suspected cockerels, should be on chick grower, all flock or flock raiser feed with 1% calcium. Higher can be hard on kidneys, and gout may be a side effect.
What does he do if you lift him up to stand? Is he imbalanced, or limping, or not moving at all? The gelatinous or mucusy part of the dropping is not normal. You could try giving Corid for a few days, but Mareks comes to mind. That is not a reason to give up or take that as a diagnosis. A chicken sling might be useful to get him up and out of droppings, and to have food and water in front of him.
Wyorp gave you advice on using vitamins with riboflavin (b2,) and crushed human b complex can also be used instead, 1/4 tablet daily sprinkled onto food. Here is a good link to see homemade sling ideas:
https://www.backyardchickens.com/threads/versions-of-chick-chairs-please.1166308/
What does he do if you lift him up to stand? Is he imbalanced, or limping, or not moving at all? The gelatinous or mucusy part of the dropping is not normal. You could try giving Corid for a few days, but Mareks comes to mind. That is not a reason to give up or take that as a diagnosis. A chicken sling might be useful to get him up and out of droppings, and to have food and water in front of him.
Wyorp gave you advice on using vitamins with riboflavin (b2,) and crushed human b complex can also be used instead, 1/4 tablet daily sprinkled onto food. Here is a good link to see homemade sling ideas:
https://www.backyardchickens.com/threads/versions-of-chick-chairs-please.1166308/
