Co-op makes an Ulimate cattle mineral with for breeders that has 100 % selenium yeast at 30 ppm, 2600 ppm copper, Zn 5200 ppm, Vit E-660 IU/lb, Vit A- 225 IU. Ca-11-13%
The high copper is what makes blood vessels and tissue more pliable and not brittle.
That block does not have enough copper in it which is very important to cattle.
Did you see where they are using Animal Protein Products?
I think after they used up the blocks, I would purchase Farmer's Co-Cop mineral ending in 613 if you are looking for a breeding mineral.
Then I use a Crystalyx tub, which is a baked molasses with Magnesium for the fescue.
Co-op sells that same mineral that I am speaking of above in a high Mag mineral with the tag ending in 660, both are Ultimate Minerals, but they don't offer it. I guess I am the only one that has asked for it. It would be cheaper for me to get it instead of buying the extra tub.
The other minerals do not offer the selenium nor do they offer the high copper. One of the many things that selenium helps is to make the placenta thinner, and as the calf is being born, he can break free from it much easier.
If you are having trouble finding a mineral in your area, try Moorman. They used to make a good mineral.