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4.1.4 – Describe the principles of genetic improvement & selection: Performance & Progeny testing
Bulls are housed in similar conditions (ICBF, Tully, Co Kildare)
Fed similar diets
Traits measured:o Average daily gain (ADG)o Linear scoring -
visual muscle & skeletal measures
Temperamento Ultrasound fat & muscle
o Food conversion ratio (FCR)
Allows €uro-star index be computed
Performance Testing
Progeny TestingDetermines the true breeding value of an animal
Offspring of bull tested for: Ease of calving Milk yield Milk solids
Test of the value for selective breeding of an individual's genotype by looking at the progeny produced.
Allows €uro-star index be computed
Keywords: Performance, Progeny, similar, ADG, Linear Scoring, FCR, Euro star rating, ultrasound, true breedingNumeracy: Linear score values, ADG, Euro star rating, LWG, milk yield, milk solids
4.1.4 – Describe the principles of genetic improvement & selection: Performance & Progeny testing
Task:
Compare & contrast performance & progeny testing
Keywords: Performance, Progeny, similar, ADG, Linear Scoring, FCR, Euro star rating, ultrasound, true breedingNumeracy: Linear score values, ADG, Euro star rating, LWG, milk yield, milk solids
Performance Testing Progeny Testing