AmbikaFan
Well-Known Member
I think that the high mortality of calves on EEHV is not the Zoo Chester, but rather the genes of the Thi Ha Way family. They are probably very susceptible to this virus.
I'm not sure this is necessarily true. All elephants are born with one of the many strains of EEHV which only come into play at times when the immune system may be weakened, such as when a calf is weaned and is reliant for the first time on its own defenses. Factors such as virulence of a particular strain of EEHV, treatments attempted, and even how long Chester calves were nursed before weaning are more likely the specific factors involved, as opposed to the general DNA of the Chester herd. The Chester and European reproductive practice of breeding cows every three years is undoubtedly the way to save the population from extinction--something the US needs to follow---but it may be that calves do not develop full immunity with three years of nursing.