Table 2

Association analysis of carcass traits for 372 crossbred steers with POMC c.288C>T (LSM(±SEM))

Trait

CC

(n = 210)

CT

(n = 138)

TT

(n = 24)

P-Value


SOB WT (kg)

243.0 ± 1.34

246.3 ± 1.66

242.2 ± 3.97

0.27

EOB WT (kg)

383.7 ± 2.06

389.8 ± 2.54

384.1 ± 6.10

0.18

B-ADG (kg/day)

1.2 ± 0.01

1.2 ± 0.02

1.2 ± 0.04

0.56

EOB BF (mm)

2.3 ± 0.10

2.2 ± 0.12

2.2 ± 0.28

0.74

EOB REA (cm2)

64.1 ± 0.52

65.2 ± 0.64

67.0 ± 1.53

0.12

SOF WT (kg)

426.6 ± 2.24b

435.5 ± 2.76a

427.6 ± 6.62ab

0.04

EOF WT (kg)

628.1 ± 3.75

639.6 ± 4.60

624.3 ± 10.98

0.12

F ADG (kg/day)

2.3 ± 0.02

2.3 ± 0.03

2.2 ± 0.07

0.45

HCW (kg)

373.6 ± 1.98b

382.5 ± 2.44a

376.9 ± 5.86ab

0.02

Average Fat (mm)

10.1 ± 0.25a

9.4 ± 0.31ab

8.5 ± 0.74b

0.05

Grade Fat (mm)

8.7 ± 0.25a

7.9 ± 0.31b

7.3 ± 0.74ab

0.05

Carcass REA (cm2)

100.4 ± 0.81b

103.6 ± 0.10a

104.0 ± 2.40ab

0.03

Marbling Score

7.7 ± 0.04b

7.8 ± 0.05a

7.9 ± 0.12a

0.02

Cutability (%)

60.8 ± 0.21

61.4 ± 0.27

62.2 ± 0.65

0.06


ab Means in the same row with different superscripts are significantly different (P ≤ 0.05)

SOB WT = start of backgrounding weight, EOB WT = end of backgrounding weight, ,B-ADG = backgrounding average daily gain

EOB BF = end of backgrounding back fat, EOB REA = end of backgrounding, rib-eye area, SOF WT = start of finishing weight, EOF

WT = end of finishing weight, F ADG = finishing average daily gain, HCW = hot carcass weight

Deobald and Buchanan BMC Genetics 2011 12:2   doi:10.1186/1471-2156-12-2

Open Data