Yield Grade Factors in Beef Carcasses

The video tutorial explains the grading system for beef carcasses, focusing on yield grading. It covers the factors that determine yield grades, such as fat thickness, muscularity, and carcass weight. The tutorial also compares two carcasses to illustrate differences in quality and yield grades, highlighting the significance of these grades in determining the value of beef products.

What is the primary focus of the yield rating in beef carcass grading?

• Estimating the lean meat yield

• Evaluating the taste of the meat

• Determining the color of the meat

• Assessing the bone density

Which yield grade represents the highest percent of lean meat yield?

• Grade 4

• Grade 1

• Grade 3

• Grade 5

What is the significance of the fat thickness opposite the 12th rib?

• It indicates the color of the meat

• It is the best single indicator of total carcass fatness

• It determines the age of the animal

• It measures the bone density

How does the size of the ribeye muscle affect the yield grade?

• Larger ribeye muscles indicate older animals

• Ribeye size does not affect yield grade

• Smaller ribeye muscles indicate higher fat content

• Larger ribeye muscles generally indicate more muscular carcasses

What additional factors are considered in determining the yield grade?

• Age of the animal

• Bone density

• Carcass weight and internal fat

• Color of the meat

Where is the kidney fat located in the carcass?

• In the four quarter

• In the round area

• In the pelvic girdle

• In the rib section

What is the main difference between USDA choice and USDA select carcasses?

• USDA choice is leaner

• USDA select is older

• USDA select has a larger ribeye

• USDA choice has more marbling

How does the lean meat yield of a carcass affect its classification?

• Higher lean meat yield results in a lower yield grade number

• Lower lean meat yield results in a higher yield grade number

• Lean meat yield does not affect classification

• Both A and B

What is the yield grade of a carcass with the lowest lean meat yield?

• Grade 5

• Grade 4

• Grade 1

• Grade 2

Which factor is NOT used to determine the yield grade of a carcass?

• Ribeye muscle size

• Fat thickness

• Carcass weight

• Bone density