I have a simple challenge to decide what kind of breeding straw is better! Most breeders I know (technician and in-house) prefer 1/2 cc straws. The only ones that like 1/4 cc straw is the ones that believe that 1/4 cc straws get 1-2% better conception rates and that is only because they believe their semen jock who stops by with some crazy number they pulled off some “study”. So here is my challenge….
- We breed 1000 Holstein cows to our Holstein double strength 1/2 cc straw
- You breed the same 1000 Holstein cows at the same time with your Jersey 1/4 cc straw
- We breed another 1000 Holstein cows to our Jersey double strength 1/2 cc straw
- You breed the same 1000 Holstein cows at the same time with your Holstein 1/4 cc straw
The results will be monitored when the cows calve. If more of them calve with cross calves on the first 1000 breedings and Holsteins calves on the second 1000 breedings you win! If more of them calve with Holsteins calves on the first 1000 breedings and cross calves on the second 1000 breedings we win! The environment will be the same so we will not have to compare conception results. We will have a total of 2000 cows in our study in the same environment. Pretty simple and it should end the debate forever!
Who is in???