r
with complete herd testing through the accumulation of additional information on relatives
id larger contemporary groups.
SWINE-EBV is the only genetic evaluation program which calculates EBVs for crossbred animals and utilizes their performance data to evaluate their purebred parents. Because SWINE-EBV utilizes both purebred and crossbred performance data, it is the optimal program for seedstock firms producing crossbred boars or gilts.
Once the actual performance information is submitted, the SWINE-EBV computer programs adjust the data for known nongenetic effects (e.g., sex, age, parity, weight), calculates contemporary-group averages and identifies data from relatives. Then, each individual’s performance data is combined with data from relatives to calculate the EBVs and indexes. The resulting reports give a complete summary of the performance of each animal, its EBVs, and index values.
Importance of Commercial Producer Support
The Swine Estimated Breeding Value Program gives a more thorough and accurate evaluation of seedstock swine herds. Selection °f superior individuals based on SWINE-EBV -alyses can accelerate the genetic improvement so important to efficient pork production. SWINE-EBV allows seedstock producers to provide you with superior, predictable seedstock.
Commercial producer interest and support will ultimately determine the success of SWINE-EBV. It is important for you to demonstrate support. Before purchasing boars or gilts, identify seedstock producers who are using SWINE-EBV. Then ask these producers to provide the SWINE-EBV reports for their available seedstock. When you have obtained the reports, select individuals based on the Commercial producer interest and support will ultimately determine the success of
SWINE-EBV. It is important for you to demonstrate support. Before purchasing boars or gilts, identify seedstock producers who are ’ ig SWINE-EBV. Then ask these producers to r. j-vide the SWINE-EBV reports for their available seedstock. When you have obtained the reports, select individuals based on the SWINE-EBV analyses to improve your herd.
Commercial producers who produce their own replacement gilts, either F1 gilts in specific crossbreeding systems or rotational-cross females in rotaterminal crossbreeding systems, should consider using SWINE-EBV to identify their top females. Mating the highest-indexing sows to superior maternal sires will further improve litter size and weaning weight.
Related Publications
For more information on swine selection programs and EBV’s, contact your Purdue Cooperative Extension office or write the Publications Mailing Room, 301 South Second Street, Lafayette, IN 47905-1092 for the following publications:
AS-435 The Purdue Swine
Improvement Program AS-439 Economics of Swine Selection
Programs that Improve Efficiency of Commercial Swine Production
REV 11/86 (2M)
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.
AS-452
—SWINE-EBV—
An Evaluation System for Seedstock
Swine: Guidelines for Commercial Producers
Cooperative Extension Service Purdue University West Lafayette, Indiana
in cooperation with the
Agricultural Research Service and Extension Service U.S. Department of Agriculture