'Calving ease' diaporamas de présentation

Mt MorrisBeef Cattle Seminar June 17, 2009

Classification and Identification of Cattle Breeds. Mt MorrisBeef Cattle Seminar June 17, 2009. CLASSIFICATION OF BEEF CATTLE. BRITISH BREEDS OF CATTLE. Hereford Dairy Cattle Polled Herefords Jersey Black Angus Guernsey

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ASA Fall Focus 2015: Confidence Builds Success Scott P. Greiner, Ph.D. Extension Animal Scientist

Designing Genetics and Selection for Seedstock Breeders, Commercial Cattlemen and Show Ring Enthusiasts. ASA Fall Focus 2015: Confidence Builds Success Scott P. Greiner, Ph.D. Extension Animal Scientist Virginia Tech sgreiner@vt.edu 540-231-9159. Putting Genetics to Work.

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CHAPTER 15

CHAPTER 15. HEIFER A.I. Benefits of Dairy Heifer A.I. Genetic Improvement of Herd Replacement Heifers Have Known Genetics Easier First Calving Better Breeding Records Disease Transfer Avoided No Hidden Expenses More Control of Young Stock Program Added Safety.

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North American Cooperation in Genomic Prediction

North American Cooperation in Genomic Prediction . Sequencing and Genotyping. Cattle genome sequenced in 2004 30 chromosome pairs (including X,Y) 3 billion letters from each parent Illumina BovineSNP50 BeadChip 58,000 genetic markers in 2007 38,416 used in genomic predictions

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R. Mark Enns and Dorian J. Garrick Department of Animal Sciences Colorado State University

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Economically Relevant Traits

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Increasing Genetic Uniformity in Mixed Herds

Increasing Genetic Uniformity in Mixed Herds. The Beast. Typical herd Heinz 57 No planned breeding program Purchase cheapest calving-ease bull Obvious inefficiency issues The Problem: How do we efficiently market our product?. Effective Marketing. Begins with a KNOWN product Birth Date

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Stillbirth, Productive Life, and Net Merit Update

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Planned Changes to Models and Trait Definitions

Planned Changes to Models and Trait Definitions. November 2004 Changes. Pregnancy checks used in days open predictions (130-250 DIM) Longevity for foreign Holstein bulls Single-trait longevity from Interbull Multi-trait processing at AIPL

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Genetic Evaluations for Fitness and Fertility in the US and Other Nations

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Planned Changes to Models and Trait Definitions

Planned Changes to Models and Trait Definitions. November 2004 Changes. Pregnancy checks used in days open predictions (130-250 DIM) Longevity for foreign Holstein bulls Single-trait longevity from Interbull Multi-trait processing at AIPL

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Genetic Evaluation of Calving Traits in Denmark, Finland, and Sweden

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Breed Composition Codes for Crossbred Dairy Cattle with an Application to Calving Ease

Breed Composition Codes for Crossbred Dairy Cattle with an Application to Calving Ease. Objectives. Develop a system for storing breed composition data in a national database.

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USDA Genetic Evaluations for Calving Ease

USDA Genetic Evaluations for Calving Ease. Calving Ease Evaluations. Objective: Reduce calving problems during calving (especially first calvings) Procedure: Collect reports on calving difficulty Calculate sire evaluations. Frequency of Calving Difficulty. History.

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USDA Genetic Evaluations for Calving Ease

USDA Genetic Evaluations for Calving Ease. Calving Ease Evaluations. Objective: Reduce calving problems during calving (especially first calvings) Procedure: Collect reports on calving difficulty Calculate sire evaluations. Calving Ease Scores.

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Update on Current AIPL Research

Update on Current AIPL Research. Senior research staff. Proposal to include crossbreds. Include all breeds in a single evaluation Report evaluations on individual breed bases Could start in November 2006. Reasons to include crossbreds.

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Animal Improvement Programs Laboratory (AIPL): Objectives and Operation

Animal Improvement Programs Laboratory (AIPL): Objectives and Operation. Where AIPL Fits In. Agricultural Research Service ( ARS ) is the main research arm of USDA (8,000 employees with 2,000 scientists at >100 locations)

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Beef Cattle Basics

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Dam Netherton Annie

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