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<blockquote data-quote="cow pollinater" data-source="post: 793837" data-attributes="member: 14661"><p>Short answer, roughly 90%.</p><p>Long answer, it varies greatly from bull to bull as well as from breed to breed. Some bulls just simply don't sort well and some breeds are more challenging to sort than others and the results show it. You will also find that the fertility is anywhere from the same as conventional to about half of that of conventional and it varies greatly from bull to bull. I have used literally thousands of units of the stuff and the results range from almost as good as conventional on fertility with 98% accuracy on sex to poor fertility and 85% accuracy. And to confuse it even more, bull fertility will change as he is a living creature so you can't always count on the good ones to do it for you every time and you can't discount the poor ones forever.</p><p>You also have to accept that 90% does not mean that on ten head you'll only have one off-sex calf. It's a roll of the dice and sometimes you get the same number over and over even though the odds are against it. When we look at the big picture with lots of cattle being bred to it, it produces 90% accuracy overall.</p></blockquote><p></p>
[QUOTE="cow pollinater, post: 793837, member: 14661"] Short answer, roughly 90%. Long answer, it varies greatly from bull to bull as well as from breed to breed. Some bulls just simply don't sort well and some breeds are more challenging to sort than others and the results show it. You will also find that the fertility is anywhere from the same as conventional to about half of that of conventional and it varies greatly from bull to bull. I have used literally thousands of units of the stuff and the results range from almost as good as conventional on fertility with 98% accuracy on sex to poor fertility and 85% accuracy. And to confuse it even more, bull fertility will change as he is a living creature so you can't always count on the good ones to do it for you every time and you can't discount the poor ones forever. You also have to accept that 90% does not mean that on ten head you'll only have one off-sex calf. It's a roll of the dice and sometimes you get the same number over and over even though the odds are against it. When we look at the big picture with lots of cattle being bred to it, it produces 90% accuracy overall. [/QUOTE]
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