MLV .vs.Killed Vaccines

[Anonymous]

I was talking to a state university fellow over the weekend and he suggested I switch from using killed vaccines in the early spring (before calving) to MLV after calving but before breeding. I have never had a problem with either abortion or respiratory disease but he claimed the killed vaccines only have a 4-6 month effectivity and the MLV lasts a year. Anyone know if there is data that supports his view?



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[Anonymous]

> MLV vaccines will have a much longer effective period than killed vaccines. However, there are downfalls to these types of vaccines. They are more expensive, are harder to use, and have a very short shelf life after they have been prepared. Before making a decision make sure that you weigh the pros and cons of both types of vaccines.



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