Production and Type Indexes

Modified on 2010/11/07 21:36 by geneder Categorized as Help
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===1 - Introduction===
The [PTI|Production Type Index (PTI)] and [ETA|Estimated Transmitting Ability (ETA)] are two indexes that are built on the USDA [ProductionEvaluation|Production] and [TypeEvaluation|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 [PTI|PTIs] and [ETA|ETAs]:

* 2:1 - PTI 2:1 and ETA 2:1 are weighted 2 to 1 production over type
* 1:2 - PTI 1:2 and ETA 1:2 are weighted 2 to 1 type over production

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 [FilterBreed|Herdbook/Breed] and [FilterSex|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.
 
[imageauto|PTI/ETA Filter|{UP}IndexFilter.jpg]

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

[imageauto|PTI/ETA List By Filter|{UP}IndexListByFilter.jpg]

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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 {S: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.
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===3 - Results===

[imageauto|PTI/ETA - Results|{UP}IndexResults.jpg]

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Production and Type Indexes
