live animal evaluation swine
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Live Animal EvaluationLive Animal EvaluationSwineSwine
Nick NelsonNick NelsonBlue Mt. Community CollegeBlue Mt. Community College
ANS 231ANS 231Originated by Originated by Kenneth GeunsKenneth Geuns
Michigan State UniversityMichigan State UniversityRevised 2009Revised 2009
Swine Evaluation: Swine Evaluation: Fat IndicatorsFat Indicators
ShoulderShoulderLoin EdgeLoin Edge Ham/ LoinHam/ Loin
JunctionJunction
FlankFlankElbowElbowPocketPocket
JowlJowl
Seam ofSeam of HamHam
Swine Evaluation: Swine Evaluation: Muscle IndicatorsMuscle Indicators
ForearmForearm HamHam
LoinLoin
StifleStifle
WeightWeight
• Live Weight– Range: 210 lb - 300 lb– Average: 250 to 260 lb
• Carcass Weight– Weight of dressed carcass (hot or chilled)
• Chilled 1.5% less than hot– Range: 150 - 215 lb– Avg: 180 lb
Dressing PercentageDressing Percentage
• Proportion of body weight that ends up as carcass– Example: 255 lb live weight hog with 186 lb
carcass = 73% dress– Some variation in dressing % across plants
due to slaughter procedures and time of carcass weight measurement (hot or chilled)
• Range: 65 - 77%• Avg: 72%
Factors Affecting Dressing PercentFactors Affecting Dressing Percent
• Gut Fill– Gut fill = Body Weight = Dressing %
• Muscle– Muscle = Dressing %
• Fat– Fat = Dressing %
Carcass LengthCarcass Length
• Measurment taken from the First Rib to the Aitch Bone
• Not in calculations
• Range: 28 - 34 in.• Avg: 31 in.• Min: 28 in
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