Use Backfat Class Lookup when you need to classify an ultrasound backfat measurement in millimetres as lean, optimal, or over-finished. Enter Backfat mm using the definitions and units below so the result can be reproduced.

Backfat mm

A finite measured or assumed value from 0 through 30.

The published tool contract uses this rule: Classify an ultrasound backfat measurement in millimetres as lean, optimal, or over-finished.^[1]

Finish class

The calculated finish class.

The category is produced by fixed software thresholds. Those cutoffs may differ from a laboratory, field protocol, population, jurisdiction, or current professional guideline. Backfat mm must remain between 0 and 30.

Retain the original Backfat mm values and their units alongside the result. Withers Height Weight Class is useful when you instead need to classify livestock frame size as small, medium, or large from the withers height in centimetres. Hip Height Index provides another view by helping you compute the hip height index as a percentage of hip height over heart girth.

• Withers Height Weight Class

  Classify livestock frame size as small, medium, or large from the withers height in centimetres.

• Hip Height Index

  Compute the hip height index as a percentage of hip height over heart girth.

• Marbling Score Lookup

  Classify a marbling score from the intramuscular fat percentage between one and thirteen percent.