Production and Type Indexes

Modified on 2010/11/07 21:36 by geneder — Categorized as: Help

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1 - Introduction

The Production Type Index (PTI) and Estimated Transmitting Ability (ETA) are two indexes that are built on the USDA Production and Type evaluations. The indexes are based on complex formulas that provide a number that can be used to rank proven animals (PTIs) and young stock (ETAs) as to their relative ability to pass improvements on to their offspring.

The Index Search page gives you a lot of flexibility in searching, filtering and sorting the available data. Basically, the higher the index value, the higher your chances are of seeing improvements in the offspring of these animals. There are 2 flavors of PTIs and ETAs:


You can make the decision of whether an emphasis of on production or type is appropriate for your breeding program. The Index Search page is a good first step in deciding which animals might be worth further research.

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2 - Filters

The Index Search page has a very simple but flexible group of filters for searching through the available index records. Included are standard Herdbook/Breed and Sex filters as well as a ListBy filter for for controlling emphasis and intial sorting of returned data. This ListBy filter is set at PTI 2:1 the first time you enter the page but can be changed.
PTI/ETA Filter

PTI/ETA Filter


The ListBy filter has the options shown in the image below. Each option will be explained in the sections below.

PTI/ETA List By Filter

PTI/ETA List By Filter


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2.1 - Name Starts With

The Name Starts With can be used to find animals by herdname or any starting string regardless of the their PTI or ETA values. This option displays a textbox and a Find button. Enter the text you'd like to search for in the textbox and click the Find button.

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2.2 - Name Contains

The Name Contains can be used to find any string within a ADGA Registered Name regardless of the their PTI or ETA values. This option displays a textbox and a Find button. Enter the text you'd like to search for in the textbox and click the Find button.

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2.3 - PTI 2:1

The PTI 2:1 option returns all records with PTI21 values greater than or equal to zero.

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2.4 - PTI 1:2

The PTI 1:2 option returns all records with PTI12 values greater than or equal to zero.

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2.5 - ETA 2:1

The ETA 2:1 option returns all records with ETA21 values greater than or equal to zero.

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2.6 - ETA 1:2

The ETA 1:2 option returns all records with ETA12 values greater than or equal to zero.

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2.7 - Superior Genetics

The Superior Genetics option returns all records with SG or SGCH designations as well as of the PTI and index values the animal might have. Top

3 - Results

PTI/ETA - Results

PTI/ETA - Results


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