. 2022 Oct 21;100(12):skac349. doi: 10.1093/jas/skac349

Table 3.

Phenotypic correlations between GreenFeed emission monitoring system measurements, dry matter intake, ultrasonic muscle measurements, liveweight traits, and carcass traits, adjusted for age

	CH₄	CO₂	DMI	MY	MIL	MIC	RCH₄	LW	EMA	FD	IMF	CW	CC
CO₂	0.61^a
DMI	0.31^a	0.57^a
MY	0.56^a	NS	−0.49^a
MIL	0.86^a	0.31^a	NS	0.65^a
MIC	0.84^a	0.32^a	0.07^a	0.61^a	0.97^a
RCH₄	0.63^a	0.27^a	NS	0.50^a	0.62^a	0.60^a
LW	0.30^a	0.61^a	0.58^a	−0.15^a	−0.21^a	−0.18^a	NS
EMA	NS	0.14^a	0.08^a	NS	−0.10^a	−0.19^a	NS	0.30^a
FD	0.10^a	0.20^a	0.30^a	–0.08^a	–0.07^a	NS	NS	0.34^a	NS
IMF	0.14^a	0.19^a	0.24^a	NS	NS	0.08^a	NS	0.25^a	−0.10^a	0.36^a
CW	0.24^a	0.52^a	0.46^a	−0.12^a	−0.22^a	−0.28^a	NS	0.91^a	0.46^a	0.22^a	0.13^a
CC	NS	0.12^a	NS	NS	−0.13^a	−0.25^a	NS	0.28^a	0.52^a	NS	−0.12^a	0.53^a
CF	0.17^a	0.28^a	0.35^a	−0.08^a	NS	NS	NS	0.44^a	NS	0.67^a	0.38^a	0.30^a	NS

^a P value <0.05.

¹ CH₄, methane; CO₂, carbon dioxide; DMI, dry matter intake; MY, methane yield; MIL, methane intensity (liveweight); MIC, methane intensity (carcass); RCH₄, residual methane; LW, liveweight; EMA, eye muscle area; FD, fat depth; IMF, intramuscular fat; CW, carcass weight; CC, carcass conformation; CF, carcass fat.

² NS, not significantly different from zero (P value ≥0.05).