
Seagull-Bay Supersire
I’ve already covered my fall breeding plan for Jersey, Reds, and Strong breeds. Next up in the series is the Holstein breed.
I’m beginning to see what I like and what I don’t like in using Holstein in a crossbreeding rotation. I made the unfortunate choice of using Million on a lot of crossbred heifers. What would have been more unfortunate was using Million over a bunch of pure Holsteins. Even with his terrible daughter pregnancy rate of -3.1, the crossbred Million daughters aren’t terrible in terms of fertility. Million is also a poor bull for daughter stillbirth percent and I have seen more than my fair share of dead crossbred calves coming from Million daughters.
I’m starting to put much more stock in production numbers for Holstein bulls. Bulls like Clark have given me some crossbred daughters that are not all that impressive for production. You’ll see on this fall’s list of Holstein bulls that most are pretty good production bulls.
The other question to ask is young sire or proven? My list will skew more towards young sires than proven. I’m comfortable enough with genomics that I’m confident even using relatively large numbers of young bulls. I generally believe that genomics will inflate index figures on young bulls but the patterns will remain relatively unchanged. I find bulls that fit the pattern I’m looking for on the upper end.
Anyway, here’s the list:
1. Seagull-Bay Supersire - Very popular young sire. The genomics say extreme production from non-extreme frames. While noting reliability issues of any young sire, this bull is one of the elite of the breed and fits into a crossbreeding program perfectly. An added benefit is his SCR of +4.5, and I can say anecdotally that Supersire gets cows pregnant.
2. S-S-I Mogul Defender – I was using Defender’s sire, Mogul, for a few months on heifers before supplies became tight. We’ll just move on to his son, Defender.
3. Regancrest AltaIota – This proven bull I’m using is also one I’ve been using for a while. I’m pretty excited for crossbreds sired by Iota. He’s been great at getting cows pregnant and his second crop proof makes him a reliable choice. Plenty of production, lots of strength, and solid udders make this bull one that could stay in my program for a while.
4. Co-Op Bosside Massey – The other proven bull that I’m looking to use more. Massey fits the pattern of high production and solid everywhere else. I’ve always liked Holstein bulls that have lower stature values than strength values.
5. Coyne-Farms Jacey CRI - I’m using Iota and I’m using Massey. So why not use a young bull that combines those two bulls along with tremendous genomic numbers?
6. Co-Op Robust Cabriolet – This one is getting some use on a group of heifers that Genex breeds for me. More or less Genex’s version of Supersire (both Robust X Planet).
Of course I use a few other bulls, either old inventory or young bulls that I’ll use 10 units and maybe a few Kiwi Friesians in there from time to time. But the six listed above look to be the main bulls for 2013-14.
