Table 2.

F-values from analysis of variance of date, months of age, sex, farm, MQ, IAT, and MQ×IAT on UP

Traits	Date	Month of age	Sex	Farm	MQ	IAT	MQ×IAT
M. longissimus dorsi
Area	27.2**	0.3	2.4	2.2**	41.0**	227.3**	5.8**
Marbling ratio	23.0**	0.4	4.9*	1.9**	13.7**	68.5**	14.2**
New fineness index	23.1**	0.5	5.0*	2.0**	11.8**	51.6**	0.4
Coarseness index	25.5**	0.8	7.4**	2.0**	104.5**	30.4**	3.4*
M. semispinalis capitis
Area	21.6**	0.9	0.0	2.1**	67.8**	29.7**	2.9*
Marbling ratio	22.1**	0.7	6.9**	2.2**	14.8**	11.4**	1.6
New fineness index	22.0**	0.8	0.2	2.2**	14.7**	7.5**	2.3
Coarseness index	21.2**	0.6	5.5*	2.1**	453.2**	0.9	2.3
M. semispinalis dorsi
Area	25.4**	0.5	0.8	2.1**	46.6**	83.7**	4.4**
Marbling ratio	23.2**	0.7	6.7*	2.0**	15.7**	63.9**	8.4**
New fineness index	24.8**	0.7	2.6	2.0**	16.1**	38.1**	1.0
Coarseness index	24.8**	0.7	5.9*	2.0**	166.7**	9.3**	4.3**
M. trapezius dorsi
Area	24.1**	0.5	0.1	2.0**	61.1**	84.7**	5.1**
Marbling ratio	23.8**	0.7	0.1	2.1**	13.8**	13.4**	9.8**
Thickness	24.1**	0.4	1.2	2.1**	46.2**	79.3**	5.4**
New fineness index	21.9**	0.5	0.0	2.0**	17.4**	16.4**	3.4*
Coarseness index	24.3**	0.7	6.8**	2.1**	133.0**	13.6**	8.4**
M. latissimus dorsi
Area	23.8**	0.7	0.5	2.1**	94.2**	132.9**	11.8**
Marbling ratio	23.3**	0.6	0.8	2.1**	20.1**	22.0**	17.1**
Thickness	24.0**	0.6	0.3	2.0**	41.0**	102.0**	9.1**
New fineness index	22.2**	0.5	5.7*	2.0**	23.7**	57.7**	4.0**
Coarseness index	24.9**	0.6	3.3	2.1**	141.2**	29.8**	9.7**
Target field
Area	20.6**	0.5	2.5	2.3**	50.9**	91.0**	13.9**
Thickness	21.**	0.4	10.5**	2.3**	42.1**	75.7**	12.5**
IF area	21.1**	0.4	5.6*	2.2**	106.1**	21.3**	21.2**
IF area ratio	21.1**	0.5	3.9*	2.2**	63.9**	1.3	16.3**
SF area	22.1**	0.5	0.4	2.1**	147.0**	4.9*	17.5**
SF area ratio	22.2**	0.6	2.1	2.1**	92.5**	1.2	12.0**

UP, carcass unit price per 1 kg; IAT, image analysis traits; MQ, meat quality grade; IF, intermuscular fat; SF, subcutaneous fat.

^*p<0.05;

^**p<0.01.