SIL produces standard indexes for industry that focus on genetic improvement using an economic base. The weightings put on different traits are detailed in documents on the SIL indexes web page (link below). What changes are considered to be desirable are also considered in the documents relating to specific goal traits on other web pages detailed below.

The following technical notes are available:

Genetic Vision
SIL has a new flock variable, related to breeding programme objectives, to help you specify the genotype of sheep you want to sell or buy

Ewe efficiency
Selection to increase productivity per unit of ewe body weight


Links to related technical notes pages:

Health and Disease
Production - Meat and Wool
Reproduction, Survival and Maternal traits
SIL Indexes

Back to the main Technical Notes page