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<blockquote data-quote="JustSimmental" data-source="post: 940750" data-attributes="member: 14624"><p>Well since the traits for inheritance on the performance side (growth) and carcass merit side comes from the Sire, we normally have better calves using Simm Cows and either a Red or Black Angus Herd Sire. </p><p></p><p><strong>Heritability estimates of beef cattle traits. </strong></p><p></p><p>Scrotal circumference (Fertility Measurement) 40-55%</p><p>Postweaning daily gain 40-45%</p><p>Postweaning daily feed consumption 50-55%</p><p>Final feedlot weight 50-55%</p><p>Yearling weight 50-55%</p><p>% Ribeye area 60-65%</p><p>Fat thickness 40-55%</p><p>Marbling score 40-45%</p><p>Tenderness score 50-60%</p><p></p><p>PB Simm cows tend to be a bit better momma cow than PB Angus cows, especially today, when PB Angus cows have a larger mature weight than do PBSM. Mature weights of cows increase the cost be annum per cow, so a more moderate frame is preferred. The Simm cow has great MM, longevity, more moderate frames and the ability to wean a heavier calf and by using an Angus Sire we get some of their carcass merit traits which we are lacking in, like IMF. We also then can take advantage of better CE scores and birth weights, which we also need improvement in.</p></blockquote><p></p>
[QUOTE="JustSimmental, post: 940750, member: 14624"] Well since the traits for inheritance on the performance side (growth) and carcass merit side comes from the Sire, we normally have better calves using Simm Cows and either a Red or Black Angus Herd Sire. [b]Heritability estimates of beef cattle traits. [/b] Scrotal circumference (Fertility Measurement) 40-55% Postweaning daily gain 40-45% Postweaning daily feed consumption 50-55% Final feedlot weight 50-55% Yearling weight 50-55% % Ribeye area 60-65% Fat thickness 40-55% Marbling score 40-45% Tenderness score 50-60% PB Simm cows tend to be a bit better momma cow than PB Angus cows, especially today, when PB Angus cows have a larger mature weight than do PBSM. Mature weights of cows increase the cost be annum per cow, so a more moderate frame is preferred. The Simm cow has great MM, longevity, more moderate frames and the ability to wean a heavier calf and by using an Angus Sire we get some of their carcass merit traits which we are lacking in, like IMF. We also then can take advantage of better CE scores and birth weights, which we also need improvement in. [/QUOTE]
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