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EPD's What Do They Mean?
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<blockquote data-quote="Jeanne - Simme Valley" data-source="post: 170417" data-attributes="member: 968"><p>I would like to clarify a few things. From some of the comments I'm not sure everyone knows what PHENOTYPE means. It is WHAT YOU CAN SEE. Like polled/horned, black/red, structure, volume, muscle, etc. What you can see in/about the animal. GENOTYPE is pedigree.</p><p>Also, waaayy back in this conversation someone asked about growth traits vs milking traits. There are many traits that are antagonistic (sp?) to others. Like - low birth weights & heavy weaning/yearling weights. Very antagonistic.</p><p>Heavy WW, YW and heavy milking - antagonistic.</p><p>Direct CE and Maternal CE - antagonistic.</p><p>As everyone knows, Simmental is a high milking cow, but even within our breed you will definately see a difference in the growth bulls and their milking traits.</p><p>We as Simmental breeders (and I'm sure many others) have used EPD's to find the bulls that went againts the NORMAL. We call them "spread bulls". Now we have many bulls with low birth weights & high WW, YW. And also, have growth bulls with good milking numbers.</p><p>This is what a BREED can achieve using EPD's.</p><p>I believe other breeds have used EPD's to improve TEMPERAMENT, SCROTAL SIZE, FERTILITY - using EPD's.</p></blockquote><p></p>
[QUOTE="Jeanne - Simme Valley, post: 170417, member: 968"] I would like to clarify a few things. From some of the comments I'm not sure everyone knows what PHENOTYPE means. It is WHAT YOU CAN SEE. Like polled/horned, black/red, structure, volume, muscle, etc. What you can see in/about the animal. GENOTYPE is pedigree. Also, waaayy back in this conversation someone asked about growth traits vs milking traits. There are many traits that are antagonistic (sp?) to others. Like - low birth weights & heavy weaning/yearling weights. Very antagonistic. Heavy WW, YW and heavy milking - antagonistic. Direct CE and Maternal CE - antagonistic. As everyone knows, Simmental is a high milking cow, but even within our breed you will definately see a difference in the growth bulls and their milking traits. We as Simmental breeders (and I'm sure many others) have used EPD's to find the bulls that went againts the NORMAL. We call them "spread bulls". Now we have many bulls with low birth weights & high WW, YW. And also, have growth bulls with good milking numbers. This is what a BREED can achieve using EPD's. I believe other breeds have used EPD's to improve TEMPERAMENT, SCROTAL SIZE, FERTILITY - using EPD's. [/QUOTE]
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