Only my roosters acting like a leg is paralyzed

[harht4God]

I have 5 pens of chickens (60 total chicks, hens ,and roosters) with at least one rooster in each pen. A month ago two roosters (not close to each other) started loosing their balance, then unable to walk, then died. One within two days of first sign, and the other a week after first sign. They were 1 and 2 years old. Two weeks later, a 1-1/2 year old rooster in a third pen went through the same. Now I have another rooster exhibiting paralysis in one leg. The only thing they all have in common is their feed. I often feed vegetable scraps, but I know which veggies not to feed and also know not to feed spoiled food. Is there some kind of disease that affects only roosters?

 

[Lacy Duckwing]

Is your flock vaccinated against Marek's disease? Have you added any new birds to them before this started happening?

 

[Eggcessive]

I would send one to the state vet lab for a necropsy and testing in case of Mareks disease. Are you seeing any curled under toes? What are they eating? Here is a list of state vet labs to contact:
https://www.metzerfarms.com/poultry...7IOlHOhP-eD8qMtZ70RNq6BMO9kVUn3x6so7q0Z_JgEr8