Genetic parameter estimates of ultrasound-measured longissimus muscle area and 12th rib fat thickness in Brangus cattle.

doi:10.2527/1993.71102623x

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Article

Genetic parameter estimates of ultrasound-measured longissimus muscle area and 12th rib fat thickness in Brangus cattle.

Journal of animal science - 1 Oct 1993

Johnson M Z, Schalles R R, Dikeman M E, Golden B L

Abstract excerpt

Data from 2,101 Brangus calves born from 1986 to 1990 were analyzed with a REML procedure using a derivative-free algorithm in a mixed linear animal model to obtain variance component estimates of ultrasound-measured longissimus muscle area and fat thickness. Direct additive heritabilities (ha2)...

Topics

Adipose Tissue
Algorithms
Animals
Body Composition
Body Constitution
Body Weight
Breeding
Cattle
Female
Genetic Variation
Genotype
Male
Models, Biological
Muscles
Phenotype
Scrotum
Selection, Genetic
Ultrasonography

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