Breeding Indexes EBVs are published for every measured trait which allows breeders that are making selection decisions to decide how much emphasis they wish to place on each trait. EBVs can also be combined into a multi-trait selection index, or breeding index, created to meet specific breeding objectives. It is widely agreed that this is the most efficient way to improve several traits at once. Economic weightings relevant to current market conditions can be used to ensure each trait is given the appropriate amount of emphasis in the index. There are five breeding indexes used by Flockbook.org members:
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Understanding The Figures 