Menu
Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Forums
Cattle Boards
Breeds Board
Polled Hereford Bulls
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support CattleToday:
Message
<blockquote data-quote="KNERSIE" data-source="post: 662488" data-attributes="member: 4353"><p>Alan, </p><p></p><p>Your example that Progress would likely be a calving ease bull because his EPDs indicates it as well as the fact that he is out of 242 who is a proven low BW bull, etc, is a good example of how you need to go about using the EPDs of unproven bulls.</p><p></p><p>Numbers do get cooked, some with the intent of deceiving and some is just good herdsmanship. If you swopped calves around between pastures to manipulate contemporary groups to favour certain calves you are cooking numbers with the intent of deceiving. If you are using a proven ultra low BW bull on high BW cows you are just being a good herdsman, but you are still cooking numbers. For example you use a -2 BW bull on a +6 BW cow and get a calf with a 2 BW projected EPD. A +2 BW EPD would qualify the bull as a low BW possibly calving ease sire, where in actual fact he is just as likely to lean to the +6 as he is to lean to the -2. Granted he will be within 1 standard deviation from the +2 in 66% of the cases, but his +2 would still be much more unreliable than a +2 bull out of two +2 parents.</p><p></p><p>So to get back to what you said, if you plan on using an unproven bull for a specific purpose like, calving ease for instance, and you lack the skill to identify calving ease bulls on phenotype and knowledge of the ancestry, you'll be better off looking at the 3 generation pedigree and their EPDs instead of building your hope on the figures of the single animal.</p></blockquote><p></p>
[QUOTE="KNERSIE, post: 662488, member: 4353"] Alan, Your example that Progress would likely be a calving ease bull because his EPDs indicates it as well as the fact that he is out of 242 who is a proven low BW bull, etc, is a good example of how you need to go about using the EPDs of unproven bulls. Numbers do get cooked, some with the intent of deceiving and some is just good herdsmanship. If you swopped calves around between pastures to manipulate contemporary groups to favour certain calves you are cooking numbers with the intent of deceiving. If you are using a proven ultra low BW bull on high BW cows you are just being a good herdsman, but you are still cooking numbers. For example you use a -2 BW bull on a +6 BW cow and get a calf with a 2 BW projected EPD. A +2 BW EPD would qualify the bull as a low BW possibly calving ease sire, where in actual fact he is just as likely to lean to the +6 as he is to lean to the -2. Granted he will be within 1 standard deviation from the +2 in 66% of the cases, but his +2 would still be much more unreliable than a +2 bull out of two +2 parents. So to get back to what you said, if you plan on using an unproven bull for a specific purpose like, calving ease for instance, and you lack the skill to identify calving ease bulls on phenotype and knowledge of the ancestry, you'll be better off looking at the 3 generation pedigree and their EPDs instead of building your hope on the figures of the single animal. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cattle Boards
Breeds Board
Polled Hereford Bulls
Top