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<blockquote data-quote="inyati13" data-source="post: 1329680" data-attributes="member: 17767"><p>"A phenotype can tell lies". In practice, producing the best cattle warrants using every tool in the box. Breeders select for the best phenotype possible. Phenotype sells. But so does genotype. The only difference between the Bulls that sell for 5k versus the ones that sell for 3k is more often than not genotype. Maybe buyers are making a mistake but the money is real. Try selling a bull at the Bulls of the Bluegrass that is from a herd bull.</p><p></p><p>The thread TT referenced raises the same issue. A phenotype can hide a plethora of undesired traits. Genotype has a track record.</p><p></p><p>Your question about can it be structural. Yes. I am not clear on what you mean by convenience faults. An explanation would help. Remember, for every gene that is expressed in a phenotype there is the homologous gene that is not! However, depending on how the chromosomes are sorted during meiosis in the formation of the gamete, that non-expressed gene may express itself. That gene could affect the form and/or function of the off-spring. Thereby, affecting structure.</p><p></p><p>You stated: Incorrect structure, low udder quality, pinched heart girth, dipped back, poor foot angle, bad hooves, poor disposition and much more are not going to be disappearing if they are in the parents.</p><p></p><p>I agree. If observed in the phenotype, they are also in the genotype. But study of the animals pedigree can be utilized to avoid these undesirable traits. I know Rocking P will not use Upgrade in their herd because they don't like his foot structure.</p></blockquote><p></p>
[QUOTE="inyati13, post: 1329680, member: 17767"] "A phenotype can tell lies". In practice, producing the best cattle warrants using every tool in the box. Breeders select for the best phenotype possible. Phenotype sells. But so does genotype. The only difference between the Bulls that sell for 5k versus the ones that sell for 3k is more often than not genotype. Maybe buyers are making a mistake but the money is real. Try selling a bull at the Bulls of the Bluegrass that is from a herd bull. The thread TT referenced raises the same issue. A phenotype can hide a plethora of undesired traits. Genotype has a track record. Your question about can it be structural. Yes. I am not clear on what you mean by convenience faults. An explanation would help. Remember, for every gene that is expressed in a phenotype there is the homologous gene that is not! However, depending on how the chromosomes are sorted during meiosis in the formation of the gamete, that non-expressed gene may express itself. That gene could affect the form and/or function of the off-spring. Thereby, affecting structure. You stated: Incorrect structure, low udder quality, pinched heart girth, dipped back, poor foot angle, bad hooves, poor disposition and much more are not going to be disappearing if they are in the parents. I agree. If observed in the phenotype, they are also in the genotype. But study of the animals pedigree can be utilized to avoid these undesirable traits. I know Rocking P will not use Upgrade in their herd because they don't like his foot structure. [/QUOTE]
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