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<blockquote data-quote="paul swisher" data-source="post: 54470" data-attributes="member: 49"><p>A little more information on DNA testing. Using a simple not evasive (15 to 20 Tail hairs or straw of semen) certain traits can be identified. Tenderness is the one I have been involved with. Basically there are two enzymes that affect tenderness - Calpastatin and Calpain. Calpastatin inhibits the natural tenderization that occurs during aging and Calpain enhances it. GeneSTAR(Bovigen) test for both. TenderGENE(Igenity) test for 2 different SNP of Calpain. Seperate testing using Bratzler Shear test has verified DNA testing. Just as some breeds grow larger, marble more, are black, some are tenderer. MARC testing shows this varies by breed group from 4.47kg to 5.78kg(almost 3 lbs) but also varies within breed. DNA testing allows the breeder to fine tune his program and insure quality beef. DNA is cross-breed effective. Tenderness can be transferred just as homozygous black. Tender Bulls have tender calves. All consumer surveys show customers are willing to pay more (one survey said $2.67 per pound more) for guarenteed tender meat. I hope this answers some questions. We have been doing this for some time and I believe in its value.</p></blockquote><p></p>
[QUOTE="paul swisher, post: 54470, member: 49"] A little more information on DNA testing. Using a simple not evasive (15 to 20 Tail hairs or straw of semen) certain traits can be identified. Tenderness is the one I have been involved with. Basically there are two enzymes that affect tenderness - Calpastatin and Calpain. Calpastatin inhibits the natural tenderization that occurs during aging and Calpain enhances it. GeneSTAR(Bovigen) test for both. TenderGENE(Igenity) test for 2 different SNP of Calpain. Seperate testing using Bratzler Shear test has verified DNA testing. Just as some breeds grow larger, marble more, are black, some are tenderer. MARC testing shows this varies by breed group from 4.47kg to 5.78kg(almost 3 lbs) but also varies within breed. DNA testing allows the breeder to fine tune his program and insure quality beef. DNA is cross-breed effective. Tenderness can be transferred just as homozygous black. Tender Bulls have tender calves. All consumer surveys show customers are willing to pay more (one survey said $2.67 per pound more) for guarenteed tender meat. I hope this answers some questions. We have been doing this for some time and I believe in its value. [/QUOTE]
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