Genomic Selection in Dairy Cattle

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Dairy Industry • Relies very heavily (>80%) on artificial insemination (AI) • Nucleus herds exist but a large part of bbreeding di iis still ill ddone bby ffarmer bbreeders d • Global exchange of genetic material between countries and AI companies – International genetic g evaluation
• Production Traits selected for – Milk, fat and protein yield... • Conformation – Udder, legs, capacity... • Functional & Health – Somatic cell score, fertility,....
Page 1 and 2: Genomic Selection in Dairy Cattle A
Page 3: Dairy Cattle • Most are specialis
Page 7 and 8: Bull Life cycles Birth 1 yr 2 yr 5
Page 9 and 10: • Works well in: Traditional Bree
Page 11 and 12: Genotypic Information • Thousands
Page 13 and 14: The Opportunity • Genotyping give
Page 15 and 16: How is this different? Pedigree + R
Page 17 and 18: 2 Main Genomic Estimation Methods
Page 19 and 20: Bull Life cycles Birth 1 yr 2 yr 5
Page 21 and 22: Advantages • Lower rate of inbree
Page 23 and 24: Advantages g • Once marker effect
Page 25 and 26: Disadvantages • Genotypes still c
Page 27 and 28: Genomic selection around the world
Page 29 and 30: • North America World wide result
Page 31 and 32: Possible strategy • Genotype a la
Page 33 and 34: Summary • Dairy industry uniquely
Page 35: Acknowledgements • Filippo Miglio

Genomic Selection in Dairy Cattle

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