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tough steers question
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<blockquote data-quote="dcara" data-source="post: 697955" data-attributes="member: 473"><p>You must be referring to the lack of use of backfat in the USDA quality grading methods, in which case you are correct that BF has nothing to do with grading. However, the research I've read (and my own experience) identifies a positive correlation between BF thickness and relative QG once marbling is established. That is, BF is typically thicker on prime graded animals than it is on choice graded animals. Hence the hang times I mentioned previously.</p><p></p><p> However a negative correlation does exist between the BF and QG on an absolute basis. That means 2 things, 1) BF cannot be used on all animals to determine what they will grade, and 2) You cannot feed an animal enough to get them to grade if they don't have the genetic disposition to grade to start with. </p><p></p><p>If you know of data or research that contradicts any of this I would be interested in reading it.</p></blockquote><p></p>
[QUOTE="dcara, post: 697955, member: 473"] You must be referring to the lack of use of backfat in the USDA quality grading methods, in which case you are correct that BF has nothing to do with grading. However, the research I've read (and my own experience) identifies a positive correlation between BF thickness and relative QG once marbling is established. That is, BF is typically thicker on prime graded animals than it is on choice graded animals. Hence the hang times I mentioned previously. However a negative correlation does exist between the BF and QG on an absolute basis. That means 2 things, 1) BF cannot be used on all animals to determine what they will grade, and 2) You cannot feed an animal enough to get them to grade if they don't have the genetic disposition to grade to start with. If you know of data or research that contradicts any of this I would be interested in reading it. [/QUOTE]
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