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751-7602-00L 2 Credits MSC D-USYS
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Applied Statistical Methods in Animal Sciences

Lecturers & Examiners: Dr. Peter von Rohr
VVZ CR n/a

Last Updated: 2026-02-05 16:08:19

Abstract

Genomic selection is currently the method of choice for improving the genetic potential of selection candidates in livestock breeding programs. This lecture introduces the reason why regression cannot be used in genomic selection. Alternatives to regression analysis that are suitable for genomic selection are presented. The concepts introduced are illustrated by excersises in R.

Objective

The students are familiar with the properties of multiple linear regression and they are able to analyse simple data sets using regression methods. The students know why multiple linear regression cannot be used for genomic selection. The students know the statistical methods used in genomic selection, such as BLUP-based approaches, Bayesian procedures and LASSO. The students are able to solve simple exercise problems using the statistical framework R.

Content

- Introduction to multiple linear regression - Problem n << p when using least squares in genomic selection - BLUP based approaches of solving problem of n << p - LASSO (Least Absolute Shrinkage and Selection Operator) as an alternative to approaches used in animal breeding - Introduction to Bayesian Statistics and parameter estimation - Application of Bayesian methods in genomic selection (BayesA, BayesB, BayesC, BayesN)

Resources

Lecture Notes

Course notes in the form of a monograph, copies of the slides and solutions to the exercise questions are available on the net.

Literature

To be announced in the lectures.

General Information

Language
English
Levels
MSC
Frequency
Yearly recurring

Examination

Type
graded semester performance
Die Leistungskontrolle besteht aus einer schriftlichen Prüfung. Alle Hilfsmittel sind erlaubt

Course Components

Type Title Time & Place Hours
lecture Applied Statistical Methods in Animal Sciences
  • Mon 08:15-10:00 (LFW C 11)
2 h weekly

Offered In