Red angus assc. epd percentile

[ccr]

Looking for a new bull and reviewing epd’s calving ease direct (ced) particularly, seems like the numbers of the RAAA percentile numbers have changed.

In 2017 a ced of 3 would be in the top 65%-70%.
[image] [/image]
In 2019 a ced of 3 is off of the bottom end of the chart:
[image] [/image]
When trying to find a new bull not sure how much weight to put into the ced because of the substantially different numbers of the percentiles from 2017 to 2019.

Our 2018 calves are from heifers and a bull with on average a ced of 3 and we did not have any problem calving (all unassisted).

Not sure I’m looking at this right. Maybe red angus folks can straighten me out on why a ced of 3 was in the top 65%-70% in 2017 and a ced of 3 is off the bottom of the chart (greater than 95%) in 2019.

Thanks.

 

[redcowsrule33]

When the RAAA started using BOLT for EPD calculation the EPD's shifted. You can't compare 2017 and 2019 EPDs apples to apples. You have to look at an individual's current EPDs compared to the current percentiles. It has meant that we have had to get used to a different set of averages. Was tough at first but I got used to it. The new EPDs should be just as accurate or more so. You just have to remember if you want to select a bull that is in the upper 30% for CED you need to be looking for 14 or higher not 7 or higher. The bulls didn't change the numbers just shifted, in the case of CED they shifted up.

 

[ccr]

When the RAAA started using BOLT for EPD calculation the EPD's shifted. You can't compare 2017 and 2019 EPDs apples to apples. You have to look at an individual's current EPDs compared to the current percentiles. It has meant that we have had to get used to a different set of averages. Was tough at first but I got used to it. The new EPDs should be just as accurate or more so. You just have to remember if you want to select a bull that is in the upper 30% for CED you need to be looking for 14 or higher not 7 or higher. The bulls didn't change the numbers just shifted, in the case of CED they shifted up.

Thanks redcow. The last red bull we had, has on his paper certificate of registration a ced of 2. Just looked his reg. number up on the redangus website and his ced is listed as 12. I guess I learned that if you want to look at a bulls epd's you ought to check out the zebu.redangus.org website and not rely on the paper certificate of registration. Thank you for your help.

 

[Son of Butch]

Also notice the rise in average Red Angus birth weights.
In 2017 breed average was -2 lbs
2019 breed average -1.4

2017 breed average ced 5 bw -2 lbs
2019 breed average ced 12 bw -1.4

2017 bw -.9 ced 3 now = 2019 bw -.9 ced 12

I point this out if you are looking to replace a bull you were happy with in 2017 with a similar 2019 model.

 

[gaurus]

When the RAAA started using BOLT for EPD calculation the EPD's shifted. You can't compare 2017 and 2019 EPDs apples to apples. You have to look at an individual's current EPDs compared to the current percentiles. It has meant that we have had to get used to a different set of averages. Was tough at first but I got used to it. The new EPDs should be just as accurate or more so. You just have to remember if you want to select a bull that is in the upper 30% for CED you need to be looking for 14 or higher not 7 or higher. The bulls didn't change the numbers just shifted, in the case of CED they shifted up.

when will the AAA start using BOLT for EPD calculation?

 

[76 Bar]

I guess I learned that if you want to look at a bulls epd's you ought to check out the zebu.redangus.org website and not rely on the paper certificate of registration.

EPDs are constantly evolving. Wise of you to seek out the current info on the bull you initially purchased.