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<blockquote data-quote="cotton1" data-source="post: 1387604" data-attributes="member: 14689"><p>OK, I get your point on the difference in bull size compared to cow size. Will that change once the herd is very tightly bred, well over the 12.5-15% IBC?</p><p></p><p>If not, should expected weaning weights on bull calf's be higher in proportion to heifer calf's? What I need to define for myself is an acceptable growth rate for culling. It would be nice if we could just let them all grow up first, but that is not going to make me money I'm sure.</p><p></p><p>With the information posted recently here in consideration , where do you expect your cattle to wean vs expected finished weight? I think earlier Ebby said 40-45%. If that's right,here is my calculations, they might be wrong(old math): 2000lb bull bred to 1300lb cows should yield a finished weight on a heifer calf of 1250-1400lbs x 40%=500 to 560,x 45%=560 to 630. </p><p>So then should bulls be considered to reach their sires weight of 2000? In that case bulls should wean at 800 to 900lbs.</p><p></p><p>To date I do have heifer weights (205) in the mid to upper 5 weights, and sometimes as high as 7 weights. I dont like the ones that make 7 weight normally, because they turn out to be big cows. I regularly see 205 weights on my bulls in the 6 weight range and sometimes 7 weights. I don't think I have ever produced a calf with a 800lb weaning weight, but I see them on calf's from time to time in sales catalogs. So I still don't know what to believe about the bull calf weaning weights.I don't want to make giant cattle, even bulls.</p><p></p><p>Over the last few years I think I have been giving the pass to heifers at 500, and bulls at 600. Had a sales manager tell me that any calf should weigh 100lbs for every month it is in age. I told him that if you show me an 11mo heifer that weighs 1100lbs I bet I can show you a fat heifer that looks like a bull and wont breed. My females are normally around 8 weight at 12-13 months old. In fact 13 mo, and 800lbs with a natural, regular cycle will qualify here to be bred. Age of breeding/first calving can play a part in finished cow weight too.</p><p></p><p>Cotton1</p></blockquote><p></p>
[QUOTE="cotton1, post: 1387604, member: 14689"] OK, I get your point on the difference in bull size compared to cow size. Will that change once the herd is very tightly bred, well over the 12.5-15% IBC? If not, should expected weaning weights on bull calf's be higher in proportion to heifer calf's? What I need to define for myself is an acceptable growth rate for culling. It would be nice if we could just let them all grow up first, but that is not going to make me money I'm sure. With the information posted recently here in consideration , where do you expect your cattle to wean vs expected finished weight? I think earlier Ebby said 40-45%. If that's right,here is my calculations, they might be wrong(old math): 2000lb bull bred to 1300lb cows should yield a finished weight on a heifer calf of 1250-1400lbs x 40%=500 to 560,x 45%=560 to 630. So then should bulls be considered to reach their sires weight of 2000? In that case bulls should wean at 800 to 900lbs. To date I do have heifer weights (205) in the mid to upper 5 weights, and sometimes as high as 7 weights. I dont like the ones that make 7 weight normally, because they turn out to be big cows. I regularly see 205 weights on my bulls in the 6 weight range and sometimes 7 weights. I don't think I have ever produced a calf with a 800lb weaning weight, but I see them on calf's from time to time in sales catalogs. So I still don't know what to believe about the bull calf weaning weights.I don't want to make giant cattle, even bulls. Over the last few years I think I have been giving the pass to heifers at 500, and bulls at 600. Had a sales manager tell me that any calf should weigh 100lbs for every month it is in age. I told him that if you show me an 11mo heifer that weighs 1100lbs I bet I can show you a fat heifer that looks like a bull and wont breed. My females are normally around 8 weight at 12-13 months old. In fact 13 mo, and 800lbs with a natural, regular cycle will qualify here to be bred. Age of breeding/first calving can play a part in finished cow weight too. Cotton1 [/QUOTE]
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