Frankie":z0z5si1h said:
If someone has a Hereford link that shows they use data from commercial cows to calculate EPD data, would you please post a link? Thanks.....
They are not yet, but they are working on it.
From the AHA website.
"Alternate Breed Inventory
The AHA is now offering an alternate breed inventory program to help start collecting cross-bred data as well as information on recipient dams so that it might be possible to utilize the information of crossbred and ET calves in future genetic analyses.
To sign up, click here, and follow directions above the form.
The goals of this program are as follows:
A. Allow for AHA to record and document information on recipient dams to allow ET calves to possibly be used in future genetic analyses (age and breed makeup of recip).
B. Allow for AHA to record information on crossbred calves with some portion of known Hereford genetics so that the performance data from these animals might be used in future genetic analyses. Possible schemes might be for progeny testing young sires, aiding commercial cattlemen by bench marking performance on their commercial cow herd, utilization of alternate breed sires on Hereford Heifers and preserving their production history.
C. Collect several years worth of these types of data and then analyze this information to see what the impact might be to the North American Hereford Cattle Evaluation of EPDs.
General Rules:
1. Purebred Herefords recorded in the AHA registry system should be maintained on your current Whole Herd TPR inventory. A Purebred Hereford female may be moved to the alternate breed inventory, however, if you should wish to move her back to the Whole Herd TPR inventory at a later date, the $30 reactivation fee will apply, similar to if you had disposed of her making her inactive and removing her from the TPR inventory.
2. Inventory fees for this system will be the same as what we are currently using for Whole Herd TPR fees.
3. This inventory system is completely voluntary and to get started a breeder has to express interest in having the forms sent to them. Once they start participation, inventory forms for the year and season will be sent out along with the purebred inventory forms. The breeder should return them with the purebred inventory forms for all enrolled females.
4. There will be a bull and female inventory similar to the Whole Herd TPR system.
5. Breeders can use the current Calf Recording/Birth Worksheet Information forms (FORM 1) to record calves out of animals on the alternate breed inventory.
6. Calves recorded to a parent from the alternate breed inventory, other than ET calves whose donor dam is purebred with known pedigree, are not allowed to be registered or have a registration certificate issued. Nor will any of their progeny be eligible to become registered Herefords.
7. Performance data of naturally bred and born calves will be ratiod based on contemporary groups formed by breed makeup of the calves. Performance data of ET calves will be ratiod based on contemporary groups formed by the genetic makeup of the recip dam for all traits except the ultrasound traits. Ultrasound trait data from ET calves will be ratiod based on contemporary groups formed by separating ET and naturally born purebred calves (e.g., ET calves ratiod against themselves and natural purebred calves ratiod against themselves).
8.
At the moment, no data from parents on the alternate breed inventory nor their progeny will be extracted for the genetic analyses. One exception to this is the ultrasound data of purebred ET calves. Ultrasound trait data from ET calves will be grouped separately from non ET calves and have contemporary groups further formed using normal management code methods. The data will be extracted and utilized in future genetic analyses."
