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Livestock
Dairy Farming
How much do you use PLI in bull choice
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<blockquote data-quote="Sandpit Farm" data-source="post: 7645925" data-attributes="member: 1646"><p>I know what you mean. The challenge is that 50% of the genetic material ON AVERAGE comes from the sire and 50% from the dam. Where the wrong gene combinations have been inherited so it is different from what is predicted, those are the animals that could drop off a cliff. Most behave how they are predicted to behave and the genomics simply add accuracy levels to this. One of the challenges with genomics with crossbreds is the result is less predictable - especially as you have hybrid vigour involved as well. That is why it isn't used.</p><p></p><p>I would be surprised if SCI, and its basis in fertility, wouldn't mirror what would be expected in NZ. The irony is that if you look at cows that cycle early in the block, they are usually high on SCI so you can make your breeding plan long before the service window.</p></blockquote><p></p>
[QUOTE="Sandpit Farm, post: 7645925, member: 1646"] I know what you mean. The challenge is that 50% of the genetic material ON AVERAGE comes from the sire and 50% from the dam. Where the wrong gene combinations have been inherited so it is different from what is predicted, those are the animals that could drop off a cliff. Most behave how they are predicted to behave and the genomics simply add accuracy levels to this. One of the challenges with genomics with crossbreds is the result is less predictable - especially as you have hybrid vigour involved as well. That is why it isn't used. I would be surprised if SCI, and its basis in fertility, wouldn't mirror what would be expected in NZ. The irony is that if you look at cows that cycle early in the block, they are usually high on SCI so you can make your breeding plan long before the service window. [/QUOTE]
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How much do you use PLI in bull choice
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