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Entering performance data
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<blockquote data-quote="Herefords.US" data-source="post: 626936" data-attributes="member: 3972"><p>Interesting posts, John! I've been looking at performance data from a different perspective.</p><p></p><p>I have concluded that I would need to randomly select 10-20% of my linebred cows each year and AI them to very proven bulls in order to "semi-fairly" compare the resulting EPDs of the sires/calves from my linebreeding program to outside blood.</p><p></p><p>But I'm still very early in the stages of developing a line where you're refining one that's been established.</p><p></p><p>I had looked at some closed herds, like Richard Day's, and concluded that the EPDs of their cattle had been adversely affected from a lack of broad comparison like I was looking at doing. Yet, you are saying such comparisons skew the data further.</p><p></p><p>Something to ruminate on.</p><p></p><p>George</p></blockquote><p></p>
[QUOTE="Herefords.US, post: 626936, member: 3972"] Interesting posts, John! I've been looking at performance data from a different perspective. I have concluded that I would need to randomly select 10-20% of my linebred cows each year and AI them to very proven bulls in order to "semi-fairly" compare the resulting EPDs of the sires/calves from my linebreeding program to outside blood. But I'm still very early in the stages of developing a line where you're refining one that's been established. I had looked at some closed herds, like Richard Day's, and concluded that the EPDs of their cattle had been adversely affected from a lack of broad comparison like I was looking at doing. Yet, you are saying such comparisons skew the data further. Something to ruminate on. George [/QUOTE]
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