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West Central Iowa | Running some calculations on animals in my herd and bulls I have used, it is interesting to see the MCE. I decided to look up the heritabilities thinking that maybe it would explain when they were throwing CED into the calculation for CEM. Their heretability on CED is 0.19 and on CEM it is 0.20. They were both a lot lower than I anticipated. It makes you wonder if you should put much emphasis on these for selection at all. Here’s a link
https://www.angus.org/Nce/Heritabilities
I wish they gave more correlations, they did at one time… maybe coincidentally around the time that I pointed out (on a well read forum among Angus breeders) that selecting for yearling height (YH) using their numbers, and basic heritability math formulas, would increase your yearling weight more than selecting for the yearling weight (YW) epd. They took those correlations down.
CED is highly correlated with bw so if you select for MCE and low birthweight to the extent you are comfortable with you may have a better breeding plan than going for CEM. | |
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C-Section schools???
