I don't think the dead birds you found had Marek's. It's evidently rare in those types of birds. Turkeys and waterfowl have forms of the disease that are specific to them and aren't transmittable to chickens. But Marek's is so prevalent in chicken populations that your Sebrights will probably be at risk. On the other hand, if your existing flock is clean, and you're careful about what else you bring in, your new chicks should be fine. I didn't get Marek's in my barn until I ignorantly adopted a lame hen from an acquaintance, and it turned out to be Marek's. It's been 7 years since that time and all my flock is either vaccinated, or genetically resistant to the disease. Those that weren't all died of Marek's or had to be euthanized.
My Ideal order was all vaccinated, thankfully. I stressed it and reminded the customer service person an extra time before I hung up after placing the order. It was on the credit card charge so I knew they wouldn't forget.
My chicks are doing really well now at 3 weeks. Only the 1 chick had ET, thank heavens. As soon as these peeps are fully fledged they'll go to the nursery coop in the barn.
My Ideal order was all vaccinated, thankfully. I stressed it and reminded the customer service person an extra time before I hung up after placing the order. It was on the credit card charge so I knew they wouldn't forget.
My chicks are doing really well now at 3 weeks. Only the 1 chick had ET, thank heavens. As soon as these peeps are fully fledged they'll go to the nursery coop in the barn.
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