Explanation of BV's

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Individual BV

A brief description.

Terminal Sire Overall (TSO)  - The sum of the selected breeding values (BV's). This is the index from which an animals final rankings are made.
High BVs are usually indicative of a flock that has made lots of progress.
Growth BV's

Growth
-
Selection on high BVs for these traits will result in faster growing lambs. These lambs grow more efficiently and can be taken to higher carcass weights.

Weaning Weight BV (WWTBV)

- Lamb weight at Weaning (usually 100 days)

Live Weight 8 BV  (LW8BV)

- Weight of lamb at 8 Months of age (usually 200 days)

Meat BV's

Meat
 -
Selection on high BVs for these traits will result in improved carcass conformation.

Eye Muscle Area (EMABV)

- Choosing animals with high muscle depth BVs will increase lamb muscularity and the overall yield of lean meat in the carcass.

Lean Weight
(LEANBV)

- The red meat only value of a carcass (Cwt minus fat, bone & waste). An average lamb carcass weighs 14.6 kg. This carcass contains 7.8kg lean meat and 3.1kg fat the remainder being bone and waste.

Fat Depth BV
(FATBV)

- Selection of an animal with a negative fat depth BV will reduce carcass fat.

Survivability
(SURBV)

- Survival of lambs.

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Last revised: September 20, 2013
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