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Post by Carlos (frmaiz) on Oct 27, 2014 16:42:05 GMT -6
Thanks for info on Bailout! Not one I was familiar with. After what you all have sent, I plan to do the first flush to him. Probably use 719t or 755t as well as Trust. Then breed back. Any comments on 719 or755T folks? Thanks for the feedback as well on Trust! George, where or whom do I contact for the Bailout semen? On April this year I bought a 14 months calf in a sale where you could pick one of eight presented. It happened to be a 719T son, out of a donor cow out of Anhinga Vick 16 pictured below. A few days ago I was checking bulls for breeding this season starting on November 15th. I decided not to use him, since it hasn't grown, no butt and thin. On top of that it has scurs. One in thousands probably but it may help you.
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Post by btlrupert on Oct 27, 2014 19:31:24 GMT -6
Sounds like a fair deal. From semen to money to steak!
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Post by btlrupert on Oct 27, 2014 19:34:03 GMT -6
Oops... Wrong thread. I'll repost where it belongs.
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Post by btlrupert on Oct 27, 2014 19:35:23 GMT -6
That's a thick cow and deep. Would have thought 719t would have worked. Thanks for the information ...
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Post by hoekland on Oct 27, 2014 23:44:34 GMT -6
Those Vic cows are good, but you are aware that he is a HY carrier?
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Post by Carlos (frmaiz) on Oct 28, 2014 5:46:31 GMT -6
Those Vic cows are good, but you are aware that he is a HY carrier? Yes. I figured that according to Mendelian segregation the probability of getting myself calves with the HY allele is 0,0625%. (and already have the allele in the herd) But of course, I realized it after the bull calf was purchased. My learning curve is steep and expensive.
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Post by hoekland on Oct 28, 2014 8:24:05 GMT -6
Explain your math, or am I missing something?
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Post by Carlos (frmaiz) on Oct 28, 2014 11:27:22 GMT -6
I'll try. Some definitions first. The condition is caused when the recessive gene (hy) is in homozygous condition. Hy.Hy: free of hypothricosis gene. Hy.hy: carrier, the animal hair is normal. hy.hy: animal with hypotrichosis.
So a carrier will transmit either allele with 0.5 probability each. The cow in the picture being the progeny of a carrier has then a 50% (0.5) of being a carrier herself. The progeny of the cow, the bull calf I bought, has 0.5 times 0.5 that is 0.25 probability of being a carrier. The progeny of him, eventually my calf crop wil have 0.5 times 0.25, that is 0.125 or 12.5% probability of being a carrier. You are right, I considered 4 generations instead of 3 in my previous calculation.
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Post by hoekland on Oct 28, 2014 14:29:22 GMT -6
Yes, I did subtly try to call you out on the extra generation and I do understand exactly how the heritibility works, but and its a big BUT, if she is a carrier the calf still has a 50% chance of being a carrier himself. That is where the probability and the real life don't quite meet. Rather test her and go from there and leave the maths to the statisticians who don't understand the art we have to understand as breeders.
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Post by Carlos (frmaiz) on Oct 28, 2014 15:28:25 GMT -6
Unfortunately there is no test available here. I will not take a chance with a known genetic issue no mater how low the probability is. But in this case I learned about Vick 16 after I purchased the calf. My fault.
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