Does a diseased buffaloe affect the cows through gene pull?

Question

sorry i wrote "pull"instead of "pool"

Answer 1

I would need more specifics. Is the Buffalo having relations with said cows? Giving rise to sterile Beefalo offspring? If they are, then they can affect the cows gene pool if they have a genetic disease. If they have a contracted disease then they can spread this to the cows that they are mingling and the effect on the genetics of the offspring will then depend on the disease passed to the cow. If it is a deadly virus, then no gene pool change due to death. If it is just a cold, then there will be no effect on the cows gene pool. Now, if said Buffalo are NOT having relations with said cows then they can only affect the cows gene pool by having a disease that passes on to only some cows that now, let's say, die from the disease. The genes that made them susceptible will now be gone from the pool and the Buffalo successfully changed the cows gene pool. If the buffalo has a genetic disease, is not mingling with the cows, then the buffalo will not affect the cows gene pool unless the Buffalo is hanging with the cows and does something like kill only cows with brown spots. Then the genetic disease would case the cows gene pool to change in a very indirect fashion.

Answer 2

It can't affect the cows unless it mates with them, which is unlikely. And all diseases are not genetically transmitted.