Table 1 Estimates of heritabilities with their standard error (SE) for carcass cut proportions, carcass traits and meat quality of the longissimus dorsi muscle in the LY, YK, and combined (CP) populations

Number of animals evaluated

689

698

2012

Carcass cut proportions

Primal cuts

 Shoulder cut

SC

1959

0.12 ± 0.06

0.13 ± 0.06

0.14 ± 0.03

 Middle cut

MC

1978

0.22 ± 0.07

0.29 ± 0.07

0.27 ± 0.04

 Leg cut

LC

1964

0.19 ± 0.07

0.39 ± 0.07

0.31 ± 0.04

Shoulder cuts

 Boneless Boston shoulder

BBS

1964

0.63 ± 0.07

0.23 ± 0.07

0.33 ± 0.04

 Boneless picnic shoulder

BPS

1966

0.37 ± 0.07

0.46 ± 0.07

0.39 ± 0.04

 Front ribs

FR

1966

0.16 ± 0.07

0.19 ± 0.06

0.15 ± 0.04

 Arm bones

AB

1967

0.33 ± 0.08

0.46 ± 0.07

0.38 ± 0.04

 Scapula bones

SB

1965

0.59 ± 0.07

0.63 ± 0.07

0.44 ± 0.04

Middle cuts

 Loin

LO

1985

0.52 ± 0.07

0.42 ± 0.07

0.36 ± 0.04

 Belly

BE

1993

0.30 ± 0.07

0.36 ± 0.07

0.32 ± 0.04

 Ribs

RI

1974

0.31 ± 0.07

0.35 ± 0.07

0.37 ± 0.04

 Chine bones

CB

1976

0.33 ± 0.08

0.17 ± 0.06

0.23 ± 0.04

 Back fat

BF

1984

0.38 ± 0.08

0.45 ± 0.07

0.44 ± 0.04

Leg cuts

 Boneless leg

BL

1988

0.28 ± 0.08

0.40 ± 0.07

0.34 ± 0.04

 Tenderloin

TL

1876

0.33 ± 0.08

0.40 ± 0.07

0.27 ± 0.04

 Leg bones

LB

1988

0.40 ± 0.08

0.47 ± 0.07

0.38 ± 0.04

 Tail and pelvis bone

TPB

1724

0.03 ± 0.06

0.13 ± 0.06

0.13 ± 0.04

Carcass traits

 Carcass weight

CW

1997

0.49 ± 0.08

0.45 ± 0.07

0.39 ± 0.05

 Half carcass weight

HCW

1997

0.46 ± 0.07

0.47 ± 0.07

0.40 ± 0.04

 Carcass straight length

CSL

2008

0.45 ± 0.07

0.47 ± 0.07

0.45 ± 0.04

 Carcass oblique length

COL

2008

0.50 ± 0.07

0.48 ± 0.07

0.45 ± 0.04

 Thoracic length

THL

2011

0.47 ± 0.07

0.44 ± 0.07

0.43 ± 0.04

 Lumbar length

LUL

2010

0.07 ± 0.05

0.24 ± 0.07

0.18 ± 0.04

 Thoracic number

THN

2012

0.48 ± 0.07

0.45 ± 0.07

0.48 ± 0.04

 Lumbar number

LUN

2010

0.09 ± 0.06

0.12 ± 0.06

0.12 ± 0.03

 Single lumbar length

SLUL

2010

0.12 ± 0.06

0.23 ± 0.06

0.24 ± 0.04

Backfat depth

 Shoulder backfat depth

SBD

2012

0.31 ± 0.08

0.23 ± 0.06

0.26 ± 0.04

 6th_7th rib backfat depth

RBD

2012

0.33 ± 0.08

0.33 ± 0.07

0.32 ± 0.04

 Waist backfat depth

WBD

2012

0.32 ± 0.08

0.20 ± 0.06

0.23 ± 0.04

 Hip backfat depth

HBD

2012

0.23 ± 0.07

0.25 ± 0.07

0.32 ± 0.04

 Mean of backfat depth

MBD

2012

0.39 ± 0.08

0.41 ± 0.07

0.43 ± 0.04

Meat quality

 pH

2010

0.40 ± 0.08

0.29 ± 0.06

0.28 ± 0.04

 Lightness, L*

LIL

2000

0.40 ± 0.08

0.40 ± 0.07

0.34 ± 0.04

 Redness, a*

REA

2000

0.50 ± 0.07

0.39 ± 0.07

0.34 ± 0.04

 Yellowness, b*

YEB

2000

0.35 ± 0.07

0.31 ± 0.07

0.30 ± 0.04

 PFAI

1705

0.17 ± 0.08

0.23 ± 0.07

0.20 ± 0.04

 Visual marbling score

VMS

1705

0.19 ± 0.08

0.27 ± 0.07

0.20 ± 0.04

Loin muscle area

LMA

1949

0.45 ± 0.07

0.35 ± 0.07

0.29 ± 0.04