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Cattle Boards
Artificial Insemination (AI) for Cattle
Sexed semen and Bismarck
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<blockquote data-quote="cow pollinater" data-source="post: 1432064" data-attributes="member: 14661"><p>I don't know where it's at now as I haven't bought sorted semen for quite a while and it has changed and will continue to as we get further away from the original patent but for quite some time just about every sorted straw from every stud came from ST and the studs had very little say in how it was packaged. With that in mind I would have to consider ST a trusted source for sorted product as they should know more about it than just about anyone. </p><p>That being said, I'm skeptical that this will be a huge improvement. I haven't seen a price list but unless it's priced very similar to the original sorted it might not pencil out even if it is better conception. </p><p>There are benchmarks that have to be hit in cell counts to improve fertility in semen. It's really not a simple case of more is better(and I tried at the request of one large customer. Two straws was very similar to one). Which is why the original patent was for as few cells as it was. They figured that it would take ten times the amount of cells to see a consistent improvement in fertility and that made it cost prohibitive. It is entirely possible that something has changed since then that I don't know about but that was how it was explained to me by some very knowledgeable people when sorted semen was really becoming mainstream.</p></blockquote><p></p>
[QUOTE="cow pollinater, post: 1432064, member: 14661"] I don't know where it's at now as I haven't bought sorted semen for quite a while and it has changed and will continue to as we get further away from the original patent but for quite some time just about every sorted straw from every stud came from ST and the studs had very little say in how it was packaged. With that in mind I would have to consider ST a trusted source for sorted product as they should know more about it than just about anyone. That being said, I'm skeptical that this will be a huge improvement. I haven't seen a price list but unless it's priced very similar to the original sorted it might not pencil out even if it is better conception. There are benchmarks that have to be hit in cell counts to improve fertility in semen. It's really not a simple case of more is better(and I tried at the request of one large customer. Two straws was very similar to one). Which is why the original patent was for as few cells as it was. They figured that it would take ten times the amount of cells to see a consistent improvement in fertility and that made it cost prohibitive. It is entirely possible that something has changed since then that I don't know about but that was how it was explained to me by some very knowledgeable people when sorted semen was really becoming mainstream. [/QUOTE]
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