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Piedmontese cross heifer
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<blockquote data-quote="City Guy" data-source="post: 1363600" data-attributes="member: 25547"><p>1 copy and 2 copy refer to the mutated myostatin gene. The myostatin gene is present in all mammals and limits muscle growth so that we don't look like a bag full of bowling balls. With double muscled cattle that gene mutates and allows greater muscle growth. Double muscled cows just have larger muscles, not actually two of every muscle. If you cross a 2 copy animal with a 0 copy animal (Angus say) all the offspring will be 1 copy. Cross two 1 copy animals and 1/4 of the calves will be 2 copy, 1/4 will be 0 copy and 1/2 will be 1 copy (on average). Keep crossing the 2 copies and eventually your herd will be 100% 2 copy and black.</p><p> The myostatin gene mutates differently with each double muscled breed, some positive and some negative effects. But the Piedmontese hit the mutation lottery. It's mutations all have positive effects:</p><p></p><p>1. Meat is very tender, naturally</p><p>2. Meat is low in fat and cholesterol (even lower than chicken)</p><p>3. Double muscle doesn't start to develop until 10-12 weeks of age-not in the womb-so easy calving</p><p>4. Lower fat content overall-greater feed efficiency</p><p></p><p>"Tendercross" and "Tenderlean" are trade names the association came up with to promote the crosses.</p></blockquote><p></p>
[QUOTE="City Guy, post: 1363600, member: 25547"] 1 copy and 2 copy refer to the mutated myostatin gene. The myostatin gene is present in all mammals and limits muscle growth so that we don't look like a bag full of bowling balls. With double muscled cattle that gene mutates and allows greater muscle growth. Double muscled cows just have larger muscles, not actually two of every muscle. If you cross a 2 copy animal with a 0 copy animal (Angus say) all the offspring will be 1 copy. Cross two 1 copy animals and 1/4 of the calves will be 2 copy, 1/4 will be 0 copy and 1/2 will be 1 copy (on average). Keep crossing the 2 copies and eventually your herd will be 100% 2 copy and black. The myostatin gene mutates differently with each double muscled breed, some positive and some negative effects. But the Piedmontese hit the mutation lottery. It's mutations all have positive effects: 1. Meat is very tender, naturally 2. Meat is low in fat and cholesterol (even lower than chicken) 3. Double muscle doesn't start to develop until 10-12 weeks of age-not in the womb-so easy calving 4. Lower fat content overall-greater feed efficiency "Tendercross" and "Tenderlean" are trade names the association came up with to promote the crosses. [/QUOTE]
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