Page 7 - DVAuction Online Catalogs
Basic HTML Version
Oklahoma Beef, Inc.
•
Thursday, March 28, 2013
5
As a means to increase our data collection during the OBI
Test and to provide potential customers with additional ge-
netic information to aid in the selection process for the eco-
nomically important traits, the sale bulls have been tested
for numerous traits. The chart at right illustrates the Igen-
ity test results included.
Only the Angus breeders
elected to have Igenity tests performed.
To help you understand the data, the following is a brief discussion of each trait
and how to interpret the numerical score that each bull was determined to
possess. Igenity has developed a scoring system for each trait using a scale
of 1 to 10. Higher values are not necessarily better—they simply indicate the
animal has the potential for more of that trait. The values listed in the chart
below reflect the relative difference expected in animals compared with con-
temporaries with a score from Igenity of 1.
Residual Feed Intake (RFI)
Describes how an animal’s feed intake differs
from its expected feed intake based on its maintenance and growth require-
ments. RFI (also called Net Feed Efficiency) is the most powerful predictor of
an animal’s ability to convert feed efficiently. A low score for RFI is more de-
sirable than high RFI, since a low-RFI animal will either eat less with the same
gains or gain more from the same amount of feed.
Average Daily Gain (ADG)
Measured in pounds of gain per day. The Igen-
ity profile results for Average Daily Gain identifies an animal’s genetic poten-
tial for rate of gain, for both calves and post-weaning growth. Based upon the
table presented, a bull with an Average Daily Gain Score of 10 would be ex-
pected to gain 0.81 lbs. per day more than a bull with an Igenity Profile Score
of 1, which means a 166 lb. difference over 205 days.
Tenderness (TEND)
Measured in pounds of Warner–Bratzler Shear Force
(WBSF). The Igenity Profile Score for tenderness represents an animal’s genetic
potential for tenderness, as measured by the WBSF Test, with 10 being the
most tender and 1 being the least tender. Based upon the table presented, a
bull with a Tenderness Score of 10 would be expected to have 2.3 lbs. less
shear force than a bull with an Igenity Profile Score of 1.
USDA Marbling Score (MARB)
Serves as an indication of an animal’s po-
tential for intramuscular fat (marbling) deposition. The Igenity Profile Score for
Marbling Score translates to the 100 to 999 scale, where 300 represents USDA
Select, 400 represents USDA low Choice, 500 represents USDA average
Choice, 600 represents USDA high Choice and 700 represents USDA Prime.
Based upon the table presented, a bull with a USDA Marbling Score of 10
would be expected to have a marbling score 161.4 points higher than a bull
with an Igenity Profile Score of 1. Marbling Score information is particularly
useful in deciding between animals with similar Marbling EPD values or sim-
ilar ultrasound data.
Back Fat Thickness (FAT)
Measured in inches of external fat thickness at
the 12th rib. Based upon the table presented, a bull with an Igenity Profile
Score for Back Fat Thickness of 10 would be expected to have .37 greater
external fat thickness at the 12th rib than a bull with an Igenity Profile Score
of 1. Higher scores equal more external fat.
Rib Eye Area (REA)
Measured in square inches of ribeye area. Based upon
the table presented, a bull with an Igenity Profile Score of 10 for Rib Eye Area
would be expected to have a 2.56 square inch larger rib eye than animals
with an Igenity Profile Score of 1.
Heifer Pregnancy Rate (HP)
Measured as a heifer’s chance at becoming
pregnant over a normal breeding season, relative to other heifers. Based on
the table presented, a bull with an Igenity Profile Score of 10 for Heifer Preg-
nancy Rate would be expected to have 18.8% more daughters to become
pregnant during a normal breeding season than animals with an Igenity Pro-
file Score of 1.
Maternal Calving Ease (MCE)
Measured as the percentage of unassisted
births in first-calf heifers. A higher value means greater calving ease. Based
upon the table presented, a bull with an Igenity Profile Score of 10 for Mater-
nal Calving Ease would be expected to sire daughters with 9.5% more unas-
sisted births than animals with an Igenity Profile Score of 1.
Docility (DOC)
Measured as the animal’s genetic potential to be extremely
calm or to have calm offspring. Based upon the table presented, a bull with an
Igenity Profile Score of 10 for Docility would be expected to have a 45.4%
chance to be extremely calm, or a 454% greater chance to sire calm offspring,
than animals with an Igenity Profile Score of 1. Higher scores from Igenity Pro-
file data for this trait indicate a higher percentage of calves that possess ac-
ceptable behavior.
No Result (NR)
Some samples may look normal but still are unable to pro-
duce acceptable results. This often occurs due to contaminants that are un-
detectable to the naked eye, dirt, mold or other foreign matter.
Igenity Profile Results
and associated effects*
For additional information,
please feel free to contact
our Igenity Customer Care
Representative:
Brian Geneva, Coweta, OK,
(918) 457-7135, email:
Visit
for
additional information.
1-877-IGENITY
* Data on file at Merial. Results expressed
represent differences expected in ani-
mals compared to contemporaries with
Igenity Profile Scores of 1.
** Lbs. of feed per day.
*** Lbs. of gain per day.
®IGENITY is a registered trademark of
Merial Limited, Duluth, GA.
4.2
3.6
3.1
2.7
2.2
1.8
1.3
0.9
0.4
8.04E-08
RFI
ADG
TEND
MARB
FAT
7
7
7
5
5
REA
HP
MCE
DOC
7
9
5
9
Interpretation of Igenity DNA Profile Values
