Brahma acting different.

[ZoomuKeeper]

One of my buff brahma roos almost 10 weeks old is much smaller than the rest and he walks with kind of droopy wings. He eats and drinks fine the others do not seem to bother him. I have checked him for mites and lice and he is clear and I did a fecal and that too is clear. No coughing, no discharge and pooh looks healthy but he walks like he is weak and like I said with droopy wings. Any clues or suggestions? I am confuddled on this one

 

[azygous]

At the risk of alarming you unnecessarily, ten weeks is the average age that Marek's begins to manifest symptoms. In addition to the droopy wings, be alert for balance problems, uneven gait, signs of lameness, and changes in the color of the eye (one or both) and changes in size and shape of the pupil.

He could be having crop issues so check first thing in the morning to be sure his crop has completely emptied overnight. Watch his appetite and water consumption for any departure from what seems normal. Monitor his poop for color, either white and runny or greenish and any signs of blood.

Watch all your chickens for any that may present with similar symptoms. At this stage, take a couple days to monitor him and the rest of the flock. If he worsens suddenly, that will be significant.

 

[ZoomuKeeper]

Mareks never crossed my mind. I really hope this is not the case I have my brahmas in the coop with my brooder that I have my polish chicks and a brooder with my Ceramis and Sumatra brooder. This would be disastrous.

 

[Eggcessive]

Sorry about your cockerel. Even if he had a clean fecal, he still might have parasites. So I would treat him for possible coccidiosis with Corid (amprollium.) Dosage is 2 tsp (10 ml) of Corid liquid per gallon of water for 5-7 days. It is safe enough for the others. Or you could cull him, and send his refrigerated body to the state vet for a necropsy and Mareks testing if it is suspected. He could have some other reason for his failure to thrive, but you could rule out Mareks. Make sure that he is not getting bullied from the food and water, and think about feeding him separately with some high protein treats. This article contains a lot of info, and the second is a link for your state vet:
https://www.backyardchickens.com/articles/the-great-big-giant-mareks-disease-faq.66077/

http://www.metzerfarms.com/PoultryLabs.cfm