Livestock weight definitions

Steers Weight
Light (370 - 464 kg)
Medium (465 - 555 kg)
Heavy (over 555 kg)
Heifers Weight
Light (330 - 399 kg)
Medium (400 - 480 kg)
Heavy (over 480kg)
Young Bulls Weight
Light (370 - 464 kg)
Medium (465 - 555 kg)
Heavy (over 555 kg)
Lambs Weight
Superlight (17 - 25.4 kg)
Light (25.5 - 32 kg)
Standard (32.1 - 39 kg)
Medium (39.1 - 45.5 kg)
Heavy (45.6 - 52 kg)
Others (over 52 kg)

SQQ (Standard Quality Quotation) Average : 25.5 - 45.5kg i.e. Light, standard and medium weight ranges for lamb