justintime
Well-known member
knabe said:Has a bull ever vaccinated for IBR been tested clean?
Do you have to keep them separated from vaccinated cattle?
Does breeding Ibr vaccinated cattle expose bull?
Is there an accepted protocol for "cleaning" them?
I have never heard of a IBR vaccinated animal testing IBR negative. Basically the vaccination gives them an IBR titre in their blood. I don't think there is any way to get an animal who was once IBR positive to ever test IBR negative. If there is, I have never heard of it. I'm not sure about breeding an IBR negative bull to females that have been vaccinated. I guess there is a chance the bull could get a titre, but I'm not sure. I did have an IBR negative bull, HC Merger 93M, who was used in our herd for 4 years. His testicles started to degenerate before we got semen collected.
If you are wondering why a person would even try to collect semen for Britain, I presently am testing a bull to see if he is IBR negative. If he is, the interested party is wanting 1000 - 1500 straws of semen. That is more semen than most Shorthorn bulls ( other than a very select few) ever sell in North America. To my knowledge, this Brit is not related to the Queen or any other royalty although I think his great grandfather and Winston Churchill's grandfather did trade roosters. ( I'm not sure if that makes them related or not)
BTW, the Queen has owned some Shorthorns and I know she has a herd of Angus presently. There is a herd of Shorthorns right beside her summer home, and she oftentimes rides her horse through them. ( with the permission of the owner). Princess Margeret is the Patron of the Shorthorn breed in Britain and she attends many Shorthorn shows and events each year. She was at ringside at the Royal Highland show when I was there three years ago, and watched the entire show. ... just a little useless information!