@rebrascora I was guessing the OP was in the UK as well since mentioning Flubenvet
I'm thinking that Coxoid may be what was given since they had a vet confirm Coccidiosis. Do you ever use any sulfonamides in the UK for treatment?
I am inclined to agree that he may be suffering from Marek's and the Coccidiosis brought out latent symptoms.
Once the Coccidiosis has been treated, then Vitamin therapy may be helpful along with extra protein to give him a boost. If chick starter or an all flock type feed is available that may be better than layer feed since he is a rooster and doesn't need the extra calcium that layer feed provides.
FWIW - Let's be clear here where I am coming from about the use of vitamins and Amprolium (Corid, Coxoid, etc). The vet drug manual mentions that "excessive thiamine in the diet can reduce or reverse the anticoccidial activity of the drug"- Nothing defines "excessive". The manual also refers the reader to individual product labeling instructions - I have found no labeling/warnings on Corid or Coxoid about the use of vitamins. Since there are so many vitamin products available for poultry with a wide variety ingredients - I feel like it's best to "err on the safe side" and eliminate vitamin therapy that contains Thiamine until after treatment is finished- ideally the Amprolium should be the only source of water available and it should the only thing in the water - unless another drug is recommended along with treatment (like antibiotics/antibacterials/antifungals/anthelmintics). Most feeds (including medicated feed that contains Amprol/Amprolium) already have Thiamine and other vitamins added in, so the birds will be getting a small amount of vitamins when they eat to get them by for the 5-7days of treatment.
I'm thinking that Coxoid may be what was given since they had a vet confirm Coccidiosis. Do you ever use any sulfonamides in the UK for treatment?
I am inclined to agree that he may be suffering from Marek's and the Coccidiosis brought out latent symptoms.
Once the Coccidiosis has been treated, then Vitamin therapy may be helpful along with extra protein to give him a boost. If chick starter or an all flock type feed is available that may be better than layer feed since he is a rooster and doesn't need the extra calcium that layer feed provides.
FWIW - Let's be clear here where I am coming from about the use of vitamins and Amprolium (Corid, Coxoid, etc). The vet drug manual mentions that "excessive thiamine in the diet can reduce or reverse the anticoccidial activity of the drug"- Nothing defines "excessive". The manual also refers the reader to individual product labeling instructions - I have found no labeling/warnings on Corid or Coxoid about the use of vitamins. Since there are so many vitamin products available for poultry with a wide variety ingredients - I feel like it's best to "err on the safe side" and eliminate vitamin therapy that contains Thiamine until after treatment is finished- ideally the Amprolium should be the only source of water available and it should the only thing in the water - unless another drug is recommended along with treatment (like antibiotics/antibacterials/antifungals/anthelmintics). Most feeds (including medicated feed that contains Amprol/Amprolium) already have Thiamine and other vitamins added in, so the birds will be getting a small amount of vitamins when they eat to get them by for the 5-7days of treatment.
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