AS-448
r performance data input forms. For registered litters, the forms will be pre-printed with the sire, dam and pig registration numbers, ear notches, birth date, and sex.
Complete herd testing is very important. Each individual will be more accurately evaluated through the accumulation of additional information on relatives and larger contemporary group sizes.
Once the performance information is submitted, the STAGES computer program adjusts the data for fixed effects (e.g., sex, age, parity, weight), calculates contemporary-group averages, identifies data from relatives, and combines each individual’s performance data with those from relatives to calculate the PPDs and indexes. The resulting output forms give a complete summary of the performance of each animal, its PPDs, and index values.
Introducing
-STAGES-
the New Purebred Swine Evaluation System
How to Get Started
The newly developed Swine Testing and Genetic Evaluation System now makes possible a more thorough and accurate evaluation of purebred swine herds. Selection of superior individuals based on STAGES analyses is going tp- „ accelerate the genetic improvement so (itteortant to efficient commercial swine production.
The ability to provide productive, predictable, purebred Seedstock is the advantage STAGES participants will have over all other Seedstock producers. Early involvement in the program will allow more precise genetic evaluations and more complete performance pedigrees.
For further information about STAGES or to obtain an instruction booklet and performance data input forms, contact your purebred associ -ation.
RR 4/86 (2.5M)
Cooperative Extension work in Agriculture and Home Economics, state of Indiana, Purdue University, and U.S. Department of Agriculture cooperating; H. A. Wadsworth, Director, West Lafayette, IN. Issued in furtherance of the acts of May 8 and June 30, 1914. The Cooperative Extension Service of Purdue University is an affirmative action/equal opportunity institution.
Cooperative Extension Service Purdue University West Lafayette, Indiana
In cooperation with the
Agricultural Research Service and Extension Service U.S. Department of Agriculture