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EPD Questions Please Assist this new member!

Posted: Wed Aug 30, 2017 11:41 am
by HonoredCattlemen
Say I've got a herd of Herefords and I'm trying to decide which bull to breed with them.
Are EPD's the best way to choose your bull?
How popular are EPD's, are there many who don't believe they are useful? Do you use them?
If I cross a Hereford with a Hereford Bull with an EPD of 3.3 for Birth weight, do I get the same value as if I crossed it with an Angus Bull with an EPD of 3.3 for Birth weight?

Re: EPD Questions Please Assist this new member!

Posted: Wed Aug 30, 2017 11:46 am
by dun
EPDs are a valuable tool, but they are just 1 tool in the box. Before selecting a bull I try to figure out what will work best to make balanced cattle with MY cows. The physical aspects come first, then EPDs. 3.3 for a Hereford and 3.3 for an angus are different values because they are based on different bases.
There used to be a table available for comparing EPDs between breeds but I haven;t seen it in years

Re: EPD Questions Please Assist this new member!

Posted: Wed Aug 30, 2017 2:24 pm
by MRRherefords
What dun said. Epds are great, but actual data is better.

Re: EPD Questions Please Assist this new member!

Posted: Wed Aug 30, 2017 3:21 pm
by HonoredCattlemen
Cool thanks for the help guys I very much appreciate it!

Re: EPD Questions Please Assist this new member!

Posted: Wed Aug 30, 2017 3:42 pm
by Rafter S
I wouldn't use a bull if I didn't like the way he looked regardless of how good his EPD's were.

Re: EPD Questions Please Assist this new member!

Posted: Thu Aug 31, 2017 12:25 am
by boondocks
dun wrote:EPDs are a valuable tool, but they are just 1 tool in the box. Before selecting a bull I try to figure out what will work best to make balanced cattle with MY cows. The physical aspects come first, then EPDs. 3.3 for a Hereford and 3.3 for an angus are different values because they are based on different bases.
There used to be a table available for comparing EPDs between breeds but I haven;t seen it in years


Found one from a few years back but AAA just changed their methodology so the old table is apparently no longer valid: https://www.angus.org/Nce/AcrossBreedEp ... spx#table1

Re: EPD Questions Please Assist this new member!

Posted: Thu Aug 31, 2017 12:30 am
by dun
boondocks wrote:
dun wrote:EPDs are a valuable tool, but they are just 1 tool in the box. Before selecting a bull I try to figure out what will work best to make balanced cattle with MY cows. The physical aspects come first, then EPDs. 3.3 for a Hereford and 3.3 for an angus are different values because they are based on different bases.
There used to be a table available for comparing EPDs between breeds but I haven;t seen it in years


Found one from a few years back but AAA just changed their methodology so the old table is apparently no longer valid: https://www.angus.org/Nce/AcrossBreedEp ... spx#table1

The most recent I found was 2015 but that won;t be correct now.

Re: EPD Questions Please Assist this new member!

Posted: Thu Aug 31, 2017 9:10 am
by Allenw
Actual knowledge trumps any numbers put on paper.

Re: EPD Questions Please Assist this new member!

Posted: Thu Aug 31, 2017 9:58 am
by Son of Butch
HonoredCattlemen wrote:If I cross a Hereford with a Hereford Bull with an EPD of 3.3 for Birth weight, do I get the same value as if I crossed it with an Angus Bull with an EPD of 3.3 for Birth weight?

A bit confused by the wording of your question.
Crossbred cattle do not receive epd values, so while a H x H or A x A offspring would receive an epd value A x H won't.

But the simple answer to your question is No.
However adjustments can be estimated.

Re: EPD Questions Please Assist this new member!

Posted: Thu Aug 31, 2017 10:20 am
by Son of Butch
Hereford calves on average weigh more than angus calves.
To make it more confusing heterosis from crossbreeding increases birth weights.
Then add in that some breed crosses generate more heterosis than crossing other breeds.
And to top it off in some cases, such as Brahman, which breed is female and which is male plays a big role to make it even more difficult and we haven't even gotten to the epd accuracy of the sire and dam in question.

That should help to make it all as clear as mud for you. :)
You Are :welcome: