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Animals were not pooled, each animal was individually genotyped.

Here is the research paper. http://www.biomedcentral.com/1471-2164/13/606 Plots are in the supplementary material. We collected as many Angus AI sires as we could get our hands on. Most of these represent Angus sires with large numbers of progeny, but also includes unique populations like the...

How much of the phenotypic or genetic variance is this leptin test accounting for? If this leptin variant was a causal mutation of large (or moderate) effect, the p-values would be very small and highly significant. It would also be replicated across independent experiments. In 2006, Taylor's...

When we do genome-wide analysis for marbling in Angus, we don't see any large effects, all we see is thousands of small effects. I disagree that there is low-hanging fruit, especially for marbling.

knabe is not talking about introgressing technology, he is  interested in introgressing genes like they do in plant genetics.

You have the right to your opinion, but your opinion is not backed up by evidence. The rate of genetic progress has increased dramatically (I  can't share the specific amount because Curt Van Tassell has not yet published his research) in dairy cattle since they started using genomic...

knabe- You want to introgress marbling alleles from Angus? Cross your Maines with top Angus sires, make F2s, test with the GeneMax test and keep the animals that score higher on the marbling score. This should select animals that have the Angus haplotype. You might want to also select for Maine...

I find it ridiculous that in 2014 people are still trying to use single gene tests to predict performance of traits that are controlled by hundreds of genes. The reported p-values are not impressive and would not be noteworthy in a genome-wide analysis. You would be much better served by...

A Steak in Genomics: Use Genomics to Maximize Dairy-Beef Crossbreeding http://steakgenomics.blogspot.com/2014/04/use-genomics-to-maximize-dairy-beef.html Wulf's and others are developing interesting programs to better utilize dairy cows to produce beef.

I believe the repro folks at Mizzou have had good success with the 14-Day CIDR protocol. http://www.iowabeefcenter.org/estrussynch/s32.pdf

Knabe- I thought I answered this post, but now I don't see it. Must have closed the browser before hitting Post. Let's try again. Not sure I understand this question. Are you asking about the difference between EPDs calculated on a single herd versus EPDs calculated nationally? I personally...

Adapting Breeding Practices to Genomic Technologies http://steakgenomics.blogspot.com/2014/03/adapting-breeding-practices-to-genomic.html This new technology opens new doors. But, it will also require that we adapt some of our current breeding and testing practices.

Another great video about how Angus producers use genomic-enhanced EPDs. I comment on my blog, http://steakgenomics.blogspot.com/2014/02/yon-family-farms-use-genomic-test-to.html, highlighting other approaches to using genomic-enhanced EPDs.

Steak in Genomics: New Prices for Limousin Genetic Tests Announced http://steakgenomics.blogspot.com/2014/02/new-prices-for-limousin-genetic-tests.html

Steak in Genomics: Crossbred Replacement Females Average $529 More Than Straightbred http://steakgenomics.blogspot.com/2014/02/crossbred-replacement-females-average.html

Here are some links to my thoughts. http://beefmagazine.com/cattle-genetics/truth-every-living-thing-genetic-defect-carrier http://connect.ksre.ksu.edu/p1s5q9x50x5/?launcher=false&fcsContent=true&pbMode=normal http://steakgenomics.blogspot.com/2013/08/cattlemen-can-avoid-passing-on-broken.html...

A Steak in Genomics "Fawn Calf" Genetic Test Being Redesigned To Be More Accurate in Gelbvieh Pedigrees http://steakgenomics.blogspot.com/2014/01/fawn-calf-genetic-test-being-redesigned.html

I left a comment on my blog: http://steakgenomics.blogspot.com/2013/12/angus-association-announces-third.html?showComment=1386646190499#c8272901803002201945. A more technical explanation. When new haplotypes are sampled from the population the genomic predictions become more robust. Animals...

Thanks for catching that! It is fixed now.

A Steak in Genomics Angus Association Announces Third Recalibration of Zoetis HD 50K Prediction http://steakgenomics.blogspot.com/2013/12/angus-association-announces-third.html I would be happy to answer any questions readers may have about recalibration.