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GRASS FED - too BIG or too LITTLE?
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<blockquote data-quote="Brandonm2" data-source="post: 336742" data-attributes="member: 2095"><p>Actually, I think that would help yield grade. The Yield Grade formula is very demanding on heavy cattle. A 550 lb carcass with an 11.4 inch REA is going too get adjusted down 3 tenths of a whole YG so could come in with a half an inch of fat cover and still make a yield grade 2. A big stout steer that hangs an 800 lb carcass with the same fat cover is going to have too cut an impressive 14.4" eye too get that same 2.95 Yield Grade(assuming I did the math right and ignoring the KPH factor which actually improves the final yield grade MOST carcasses). </p><p></p><p><a href="http://ars.sdstate.edu/AnimalEval/Beef/beefgrade.htm" target="_blank">http://ars.sdstate.edu/AnimalEval/Beef/beefgrade.htm</a></p><p></p><p>Especially amoung British breeds historically, as frame increase ribeye area fails too keep pace. IF the feedlots know what they are doing and feed to the same backfat thickness they do now, smaller framed calves SHOULD lead too a little lowering of average yield grades due to the way the formula is calculated. IF an emphasis was paid on muscling (rather than just growth EPDs) we would see a drop in average yield grade no matter what frame we were striving for.</p></blockquote><p></p>
[QUOTE="Brandonm2, post: 336742, member: 2095"] Actually, I think that would help yield grade. The Yield Grade formula is very demanding on heavy cattle. A 550 lb carcass with an 11.4 inch REA is going too get adjusted down 3 tenths of a whole YG so could come in with a half an inch of fat cover and still make a yield grade 2. A big stout steer that hangs an 800 lb carcass with the same fat cover is going to have too cut an impressive 14.4" eye too get that same 2.95 Yield Grade(assuming I did the math right and ignoring the KPH factor which actually improves the final yield grade MOST carcasses). [url=http://ars.sdstate.edu/AnimalEval/Beef/beefgrade.htm]http://ars.sdstate.edu/AnimalEval/Beef/beefgrade.htm[/url] Especially amoung British breeds historically, as frame increase ribeye area fails too keep pace. IF the feedlots know what they are doing and feed to the same backfat thickness they do now, smaller framed calves SHOULD lead too a little lowering of average yield grades due to the way the formula is calculated. IF an emphasis was paid on muscling (rather than just growth EPDs) we would see a drop in average yield grade no matter what frame we were striving for. [/QUOTE]
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