Our calving plan was way out this year!
We had 3 cows all vacinated in march, due to calve july to sept. All second calvers, One didnt calve and kept returning, hopefully is now in calf. One calved jan one a fortnight ago. If the dates are followed back it seems to me the vaccination interupted fertillity.
I have one shorthorn who was AI'ed then vacinated the AI didnt work.
We have two shorthorns that wernt vaccinated, absolutly no problems calved on the dot.
Now it could be coincidence..... but i am not the only one who feels the vaccine has caused calving issues.
I have spoken to numerous people who have large herds and they are experiencing the same issues. Calving is all over the place, cows who should have calved are calving months later than expected. Cows who had been PDI ed are not calving around dateds expected rarther 3 to 4 months later, all coincinding with Blue tounge vaccination. suggesting the cows may have aborted, due to vaccination.
I spoke at legnth with my vet, who couldnt answer my concerns, but did say they had similar concerns from other farmers. All they did say was the vaccine was rushed out, and the data sheet is very vague therfore there is no comeback on the drug companies who produce the vaccine.
All i can say is i have purchased this years supply, but wont use it unless there is an outbreak within 100 miles of us.