I do not think your rooster i suffering from coccidosis, or from worms. It won't do any harm to treat for both though.You should not feed roosters layer feed. I realise it's an easy error to make and many people do feed layer feed to roosters.
Layer feed, as it says in the name and should on the packet, is for laying hens.
Looking at the colour of his comb and the state of his poop, I would be inclined to think he has either heart, or liver problems, or has ingested a poisonous substance.
In the short term, I would feed him cooked white fish. I would not feed him oats. Cooked egg is fine as is small amounts of yogurt.
What I would do is get him to drink as much water as you can get down him. If he wont drink by himself, or eat by himself then youshould consider tube feeding him. There are a few guides here on BYC on tube feeding you will be able to find if you use the search function.
This article may help.
https://www.backyardchickens.com/ar...dications-to-all-poultry-and-waterfowl.73335/
This one to
https://www.backyardchickens.com/th...uals-very-detailed-post.805615/#post-11652991
Layer feed, as it says in the name and should on the packet, is for laying hens.
Looking at the colour of his comb and the state of his poop, I would be inclined to think he has either heart, or liver problems, or has ingested a poisonous substance.
In the short term, I would feed him cooked white fish. I would not feed him oats. Cooked egg is fine as is small amounts of yogurt.
What I would do is get him to drink as much water as you can get down him. If he wont drink by himself, or eat by himself then youshould consider tube feeding him. There are a few guides here on BYC on tube feeding you will be able to find if you use the search function.
This article may help.
https://www.backyardchickens.com/ar...dications-to-all-poultry-and-waterfowl.73335/
This one to
https://www.backyardchickens.com/th...uals-very-detailed-post.805615/#post-11652991