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United States Department of Agriculture

Agricultural Research Service

Expected Progeny Differences (EPD) Graphs - Introduction

While cluster analysis is a tool used to build the collection, EPD graphs are used to evaluate the diversity of an existing collection.  Current EPD for the collection are compared to the breed averages by birth year.  Also shown are standard deviation, minimum, and maximum EPD for the collection to determine if the collection represents the diversity available within the breed.

Last Modified: 11/10/2016
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