Fleece Weight
The total weight of greasy wool shorn from a sheep at shearing, a key production and breeding value trait for wool-producing breeds.
Fleece weight refers to the total weight of greasy (unwashed) wool removed from a sheep at shearing, typically measured in kilograms. It is one of the most economically important production traits for wool-producing breeds such as Merino, and it is also recorded and evaluated for dual-purpose and meat breeds where wool income contributes to enterprise profitability. Fleece weight is a standard trait in Australian Sheep Breeding Value (ASBV) evaluations through Sheep Genetics.
Fleece weight is influenced by a combination of genetic and environmental factors including nutrition, shearing interval, sheep age, and seasonal conditions. For genetic evaluation purposes, these environmental effects are accounted for in the ASBV calculation, allowing fair comparison of animals raised under different management systems. A positive fleece weight ASBV indicates that an animal is expected to produce progeny with heavier fleeces than breed average.
For wool producers, selecting for increased fleece weight must be balanced against fibre quality traits such as micron, staple strength, and coefficient of variation. Simply chasing heavier fleeces without maintaining or improving fibre quality can lead to coarser, less valuable wool. The most effective approach is to use the breeding objective framework, weighting fleece weight alongside other wool and production traits according to their economic value within the specific enterprise. In sale catalogues, presenting fleece weight data alongside other wool measurements gives buyers a complete picture of each animal's wool production potential.
How Frisbee Supports Your Fleece Weight Program
Frisbee helps stud producers present their breeding program data — including fleece weight information — in professional sale catalogues and marketing materials. Clear, accurate data presentation builds buyer confidence and positions your stud as a leader in genetic improvement.
By connecting your animal data with your buyer relationships and marketing campaigns, Frisbee ensures that the genetic progress you achieve in the paddock translates into stronger sale results and a growing base of loyal repeat buyers.
Related Terms
Explore other glossary terms related to fleece weight.
Australian Sheep Breeding Value (ASBV)
The genetic evaluation metric for Australian sheep, providing comparable estimates of an animal's breeding merit across flocks.
Breeding Objective
A defined production goal that guides genetic selection decisions, balancing the traits most important to a producer's enterprise profitability.
Ram Sale
A sale event where stud or flock rams are offered to buyers, commonly held on-property or through multi-vendor sales and online platforms.
Carcase Traits
Measurable characteristics of an animal's meat yield and quality, including eye muscle area, rib fat, rump fat, and intramuscular fat (marbling).
Maternal Sire
A sire breed or individual selected for its ability to produce female progeny with strong reproductive, milking, and mothering traits.