Test Your Knowledge
1. What does EPD stand for?
2. What year was the first UGC field certification?
3. List in chronological order from earliest to latest the use of each ultrasound image (rump, ribeye, pfat).
4. T or F Interference can be caused by the electrical and video cords crossing.
5. The scan weight should be collected when the animal is (full/empty/no preference)?
6. What quality grade does a 4.0%IMF correlate to?
7. What is the acceptable scanning age range for Angus Bulls?
8. What does UGC stand for?
9. A rump image with a double line at the bottom is collected (higher/lower) than necessary.
10. What is the main disadvantage to using vegetable shortening as a scanning couplant?
11. The striations on a pfat image point down toward the head/tail of the animal?
12. The longissimus costarum is on the medial/lateral end of the ribeye.
13. Spinalis over_____ the length of a pfat image is rejected.
14. Spinalis evident in a pfat image would result in a lower/higher/same IMF reading if the box is placed under it (why we reject the image!)
15. How should a technician scan a ribeye image that doesn’t fit on the screen?
16. Which of the above FGBs was first used for CUP?
17. Which FGB is external?
18. Which FGB has a manual filter switch?
19. Rank UI’s FGBs from most to least expensive.
20. Which FGB image size is largest?
21. T or F Vegetable oil and liquid shortening can be used interchangeably as a coupling agent.
22. T or F During summer months all cattle have less than 1/2” hair and do not need clipped.
23. T or F UGC stands for Ultrasound Guidelines Council.
24. T or F If a standoff pad does not fit an animal’s back, collect an image with the standoff pad (for fat measurement) and one without (for
ribeye area measurement).
25. T or F The brand of chute affects ease of scanning.
26. This weather condition can contribute to blurred %IMF images.
a. a windy day
b. a calm day
c. a cold day
d. a hot day
27. The first “New” Aloka went through field certification in what year?
a. 1998
b. 2001
c. 2004
d. 2008
28. The first breed association to adopt Centralized Ultrasound Processing (CUP) was…
a. Limousin
b. Charolais
c. Angus
d. Red Angus
29. Ultrasound waves pass through muscle at what velocity?
a. 1620
b. 1500
d. 1700
c. 1430
30. Which overall gain setting would give the crispest ribeye image?
a. 90
b. 87
c. 78
Visit us at: www.uicuplab.com
Test Your Knowledge
Please look at each image and determine image quality (acceptable, marginal, rejected)
and list reason for unacceptable images. Note: %IMF images are scored based on the entire
animal, but evaluate single images for this exercise. Answers on Page 4. DECEMBER 2009
1)
4)
7)
2)
3)
5)
6)
8)
9)
Visit us at: www.uicuplab.com
Test Your Knowledge
When using ultrasound to predict %IMF, it is often asked what quality grade that particular
animal would grade. Through the application of ultrasound in market animals, and later
correlating their ether extract results, quality grades have been assigned to their
respective intramuscular fat percents.
Quality Grade
Marbling Score
Low Prime
Slightly Abundant 0-90
High Choice
Moderate 0-90
Avg Choice
Modest 0-90
Low Choice
Small 0-90
High Select
Slight 50-90
Low Select
Slight 0-40
Percent IMF
Visit us at: www.uicuplab.com
ANSWERS
NEWSLETTER AUG 2007
1. Expected Progeny Difference
2. 2001
3. Ribeye, Pfat, Rump
4. True
5. Empty
NEWLETTER MAY 2007
6. Low Choice.
7. 320-440
8. Ultrasound Guidelines Council
9. Too Low
10. Vegetable shortening will gel faster than oil.
NEWSLETTER NOV 2007
11. Head
12. Lateral
13. 1/2
14. Higher
15. Take one image each with the medial end and lateral end on the edge of the screen.
NEWSLETTER FEB 2008
16. CX-100
17. USB
18. CX-100
19. CX-100, PXC 200, USB
20. USB
NEWSLETTER JUNE 2009
21. F-liquid shortening will gel.
22. F
23. T
24. T
25. T
NEWSLETTER SEPT 2009
26. D—cattle breathing hard from heat can cause blurring
27. B—2001 (that got some heads scratching!)
28. C—The American Angus Association funded AAA CUP—a research project to establish protocol and determine validity of CUP
29. A—1620—Always a tricky one on the test! 1500 is water, 1430 is fat, and 1700 is skin
30. C—the lower the overall gain, the crisper the image. However, the %IMF software is developed at 90, –25, 2.1 so deviation of this would
cause images to be rejected—not worth the risk of changing!
NEWSLETTER DEC 2009
1) Marginal—poor contact in the region of interest. Notice how the texture is not consistent.
2) Rejected—excessive spinalis or acorn. (goes across the entire image)
3) Acceptable.
4) Marginal—intercostals run together. This image is collected too straight.
5) Rejected—ribbed. This image is collected on top of a rib, not between. (only one line for IC).
6) Acceptable.
7) Rejected—intercostals run together.
8) Marginal—intercostals run together. Look at the “V” at the bottom of the images. This will not be on acceptable images! (no arguing if
you choose rejected for #4 and #8)
9) Rejected—far gain is at 2.5, not 2.1. (Tricky, I know...small print)
NEWSLETTER SEPT 2010
%IMF Correlations:
Low Prime (9.9-12.1)
High Choice (7.7-9.7)
Avg Choice (5.8-7.6)
Low Choice (4.0-5.7)
High Select (3.1—3.9)
Low Select (2.3—3.0)
Visit us at: www.uicuplab.com