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<blockquote data-quote="Brandonm2" data-source="post: 139285" data-attributes="member: 2095"><p>That variation is EXACTLY why we have EPDs. A very mediocre line can produce very good "phenotypically" individuals that perform well in either the ranch environment or in the show ring. We all remember superb cows sired by bulls with EPDs which NOW are very subpar. It does not mean that the cow we remember was EVER subpar OR that the EPDs were not necessarily accurate. The other calves you NEVER get to see in the breed magazine are the rejects which got shipped or the dead calves they pulled out of their cows. That does not mean that those mediocre genes were all shipped with them. EPDs measure the performance of both the those individuals who win their class in the state fair AND those individuals who wind up as Yield Grade 4 Selects in the feedlot (if the data is reported correctly). A high performance line can still throw a toad or a flat ribbed hard doer; but because EPDs are AVERAGES of expected performance those animals should occur less often in a performance line than in a mediocre line. You still have to be able to visually evaluate cattle because there is no feet and legs EPD, topline EPD, udder quality EPD, volume EPD or muscling EPD (though REA and %RP are good muscling indicators) and you don't want to be the sucker that buys one of those bottom 10%ers out of a very good sire. Just because it is very possible to see a poor phenotypically individual with good EPDs does not mean that you should disreguard EPDs, because you could end up with a very good looking bull and a calfcrop that are very underperforming. There are ~100,000 registered Hereford cows floating around out there and ~200,000 registered Angus cows out there. IF a calf you are looking at is not going to get it done phenotypically or his EPDs show that his relatives are some of the least desirable animals in the breed.....you just move on to evaluate the next calf. It is not difficult to find another Angus or Hereford bull and really there is excellent bull selection in any of the top 15 breeds in most cases without straying far out of your state. There are probably 20 breeds available just in my home county.</p></blockquote><p></p>
[QUOTE="Brandonm2, post: 139285, member: 2095"] That variation is EXACTLY why we have EPDs. A very mediocre line can produce very good "phenotypically" individuals that perform well in either the ranch environment or in the show ring. We all remember superb cows sired by bulls with EPDs which NOW are very subpar. It does not mean that the cow we remember was EVER subpar OR that the EPDs were not necessarily accurate. The other calves you NEVER get to see in the breed magazine are the rejects which got shipped or the dead calves they pulled out of their cows. That does not mean that those mediocre genes were all shipped with them. EPDs measure the performance of both the those individuals who win their class in the state fair AND those individuals who wind up as Yield Grade 4 Selects in the feedlot (if the data is reported correctly). A high performance line can still throw a toad or a flat ribbed hard doer; but because EPDs are AVERAGES of expected performance those animals should occur less often in a performance line than in a mediocre line. You still have to be able to visually evaluate cattle because there is no feet and legs EPD, topline EPD, udder quality EPD, volume EPD or muscling EPD (though REA and %RP are good muscling indicators) and you don't want to be the sucker that buys one of those bottom 10%ers out of a very good sire. Just because it is very possible to see a poor phenotypically individual with good EPDs does not mean that you should disreguard EPDs, because you could end up with a very good looking bull and a calfcrop that are very underperforming. There are ~100,000 registered Hereford cows floating around out there and ~200,000 registered Angus cows out there. IF a calf you are looking at is not going to get it done phenotypically or his EPDs show that his relatives are some of the least desirable animals in the breed.....you just move on to evaluate the next calf. It is not difficult to find another Angus or Hereford bull and really there is excellent bull selection in any of the top 15 breeds in most cases without straying far out of your state. There are probably 20 breeds available just in my home county. [/QUOTE]
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