Genetics of Animal domestics

A.Y. 2020/2021
8
Max ECTS
80
Overall hours
SSD
AGR/17
Language
Italian
Learning objectives
The course provides the basic knowledge of mendelian, population, quantitative and molecular genetics applied to livestock production.
Expected learning outcomes
Students will own the basic knowledge of selection programs implemented in livestock populations. They will be able to use the available tools in order to operate selection or individuals in livestock, being aware of the basic principles of Mendelian and quantitative genetics behind the ongoing selection programs.
Course syllabus and organization

Single session

Responsible
Lesson period
First semester
Lectures will be held on the Microsoft Teams platform, even for those provided in person, and can be followed both in synchronous on the basis of the first scheduled lectures and in asynchronous because they will be recorded and left available to students on the same platform.
Course syllabus
'H13-136-A' - 'Didactic Unit - Basic genetics'.
The basic genetics module is divided into two sections:
1. A theoretical part of Mendelian genetics relating to species of zootechnical interest
2. An exercise part that will allow the student to put the notions received into practice

Frontal teaching (24 hours)
1. Mendelian Genetics
2. Mendel's laws exceptions: Epistasis, Interactions, Lethal genes
3. Test-cross, Pedigree analysis
4. Sex-linked, sex-limited and sex-influenced characters
5. Cross-environment genetic correlations, penetrance, genetic expressivity, pleiotropy
6. Molecular, Genetic, Immunological markers and their application on animal production
7. Chromosomes and Genes: Cariotype, genes and chromosomes mutations
8. Association and crossing over; genetic, physical and comparative maps
9. Genes structure; replication, transcription, translation and interference

Practical labs (16 hours)
Exercises on the topics covered in the theoretical part

H13-136-B - Didactic unit: Genetic Improvement

Class Lectures (24 hours)
1. Additive relationship, inbreeding and tabular method (2 hours)
2. Quantitative traits: the infinitesimal model (1 hour)
3. Genetic parameters: heritability and repeatability of a trait; correlation among traits (1 hour)
4. Farmer and breeding system in Italy. Statistic on Italian milk breeds under selection (2 hours)
5. Definition of traits under selection: selection criteria, selection objective (2 hours)
6. Selection schemes in animal production (cattle, sheep and goats, swine, poultry, fish) (2 hours)
7. EBV and its components, the animal model (2 hours)
8. One locus model as a basis for genomic selection (2 hours)
9. Principle of genomic selection and its integration in the selection schemes in livestock with particular emphasis in dairy cattle (4 hours)
10. Expected genetic progress (accuracy of selection, selection intensity, generation interval) 4 hours
11. Selection choice from a farmer perspective (4 hours)

Practical labs (16 hours)
1. Online tools available for breeder selection to breeders (2 hours)
2. Simulation of a farm's genetic improvement (14 hours)
Prerequisites for admission
No prerequisite
Teaching methods
Frontal lessons and practice
Teaching Resources
'H13-136-A' - 'Didactic Unit - Basic genetics'.
-) Lecture notes available in pdf format
-) Genetica animale applicazioni zootecniche e veterinarie G. Pagnacco Casa editrice ambrosiana.
-) Educational material on the ARIEL portal

H13-136-B - Didactic unit: Genetic Improvement
-) Lecture notes available in pdf format
-) Genetics for the Animal Science. L.D. Van Vleck, E.J. Pollak, E.A. Oltenacu. Ed. W.H. Freeman and Company. ISBN 0-7167-1800-6
-) Educational material on the ARIEL portal
Assessment methods and Criteria
The exam will consist into 1 written test.
Brief description of the test procedures:
Open and multiple choice exercises and questions
genetic improvement
AGR/17 - LIVESTOCK SYSTEMS, ANIMAL BREEDING AND GENETICS - University credits: 4
Practicals: 16 hours
Lessons: 24 hours
Genetics
AGR/17 - LIVESTOCK SYSTEMS, ANIMAL BREEDING AND GENETICS - University credits: 4
Practicals: 16 hours
Lessons: 24 hours
Professor: Polli Michele