4 years, 8 months ago-
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@Hi I was just wondering your thoughts on Mareks. If I find that a certain line or strain has Mareks should I be culling or not breeding that particular line? Would it indicated a genetic weakness? I know Mareks is so random and everywhere but I didn’t know if it would affect or would weaker birds have it or get it more over birds that are not? I don’t vaccinate but I have had some of my customers purchase birds from me that had Mareks and they had to put down, I was just curious if it could be part of my genetics or flock immunity resistance. Thanks
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Marek’s is everywhere, that is true. However, very few strains express this disease in high numbers. However, some strains do express it more than others, and some not at all. I once had a strain that would express Marek’s 50% of the time. This was a problem. I eventually got rid of that family.
Most farms see this maybe 5% or less. In most cases, this should not be a problem. I would certainly not eliminate a family for Marek’s that is expressed at a low rate of occurrence. Marek’s is a difficult disease to select against, but if you see from your records that a particular hen or cock’s offspring are more susceptible than the rest, you could cull those breeders and improve your results.
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@Thanks Kenny that is interesting information, thank you!
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