Swine Evaluation Flashcards
Inconsistent as a group
Heavy muscled throughout
Show Pigs
Frail, narrow but consistent
Look plainer shaped/lighter muscled, but usually not
Company Pig
No ear notches
Look lighter muscled
Look plainer/fatter
Feral Hogs
Live hogs are sold primarily on a
Weight basis
Factors impacting dressing percentage in Pigs
Fill
Degree of muscling
Fat
Highly related to lean cut or ham and loin percentages
10th Rib Backfat Thickness
Why is Pork carcasses not typically ribbed in industry
Devaluation
Device used to detect fat and loin depth in pork
Fat-O-Meat’er
When the 10th rib is < 1.1
last rib is 0.2 - 0.4 inches highers
When the 10th rib is > last rib
both are similar
Is last rib highly direct or highly inverse relationship to carcass muscling
highly inverse relationship
Loin depth is highly correlated to loin muscle area.
True
Which of the following is needed to calculate percentage fat free lean?
BF
Loin Eye Area
HCW
What is the difference between %FFL and #FFL
Number of FFL you don’t divide by HCW
Which of the following are used to determine swine price on a grid?
Hot Carcass Weight
%FFL
What is the average live weight for a market hog immediately prior to slaughter?
290 lbs
Degree of muscling
Muscling Score (MS)
Which of the following muscle scores best describes a heavy muscled hog?
MS 3
Which of the following muscle scores best describes a thin muscled hog?
MS 1
What are the two factors in USDA Pork Grades
Last Ribbed Back Fat
Muscling Score
What are the exception for Quality Grading in Pigs
Exceptions
Carcasses with MS — cannot grade USDA —–
Carcasses with LRBF — 1.75 in cannot grade —- or lower, regardless of —
—– USDA grades gets a grade of —–
1 and 1
over, 3, and MS
Negative and 0
