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<blockquote data-quote="Son of Butch" data-source="post: 1272641" data-attributes="member: 14585"><p>I don't have a fast and hard number. I start by knowing the breed average numbers. </p><p>Breed average $EN -9 $W 47 $F 45</p><p>$EN is only of value on animals retained for breeding.</p><p>$F is only of value on animals fed out.</p><p>$W applies to entire calf crop. 100% is the weighted value I put on $W since I plan on weaning 100% of my calves</p><p>$F at 50% bcs I plan to feed out the steers</p><p>$EN at 33% bcs I expect to retain 2/3 of the heifer crop for replacements (50% of calves are heifers 50 x .66 = 33%)</p><p></p><p>example:</p><p>IF I select a sire that is -20 EN (bottom 20%) I am losing $11 of breed average 33% of the time 11 x .33 = $3.63</p><p>So the sire I select must be at least $4 above breed average on $W combined with $F just to stay even</p><p></p><p>Because I want to make genetic progress, I calculate to stay above the top 20% epds.</p><p>$W 60</p><p>$F 63</p><p>$EN 5</p><p></p><p>If a sire hurts me on $EN he has to at least make it up on $W and $F or he is off the list.</p><p>Ideally all of the epds would be as high as possible.</p><p>But we don't live in an ideal world and compromises have to be made.</p><p>$ weaned is 3 times more important to me than $EN and twice as important to me as $F</p><p>But that's just me, depending on your goals you are well within your rights to say, 'that's a load of crap'.</p></blockquote><p></p>
[QUOTE="Son of Butch, post: 1272641, member: 14585"] I don't have a fast and hard number. I start by knowing the breed average numbers. Breed average $EN -9 $W 47 $F 45 $EN is only of value on animals retained for breeding. $F is only of value on animals fed out. $W applies to entire calf crop. 100% is the weighted value I put on $W since I plan on weaning 100% of my calves $F at 50% bcs I plan to feed out the steers $EN at 33% bcs I expect to retain 2/3 of the heifer crop for replacements (50% of calves are heifers 50 x .66 = 33%) example: IF I select a sire that is -20 EN (bottom 20%) I am losing $11 of breed average 33% of the time 11 x .33 = $3.63 So the sire I select must be at least $4 above breed average on $W combined with $F just to stay even Because I want to make genetic progress, I calculate to stay above the top 20% epds. $W 60 $F 63 $EN 5 If a sire hurts me on $EN he has to at least make it up on $W and $F or he is off the list. Ideally all of the epds would be as high as possible. But we don't live in an ideal world and compromises have to be made. $ weaned is 3 times more important to me than $EN and twice as important to me as $F But that's just me, depending on your goals you are well within your rights to say, 'that's a load of crap'. [/QUOTE]
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