Table 2 Characterization of carcass traits in lambs with low, medium, and high residual feed intake (RFI).

From: Association of residual feed intake with growth and slaughtering performance, blood metabolism, and body composition in growing lambs

Traits

RFI group 1

SEM 2

P -value

Low

Medium

High

No. of animals

42

54

41

  

BW before slaughter, kg

39.27

41.09

39.70

0.34

0.063

Carcass weight, kg

19.01

19.88

19.68

0.18

0.175

GR value

16.65

17.89

17.11

0.23

0.117

Tail fat weight, kg

0.98

0.99

0.90

0.03

0.903

Eye muscle area, cm2

21.20

21.49

22.58

0.30

0.194

Back fat thickness, cm

0.79b

0.79b

0.95a

0.03

0.054

Dressing percentage, %

48.12

48.19

48.71

0.13

0.082

  1. a and bLeast-square means within a row with different superscripts differ significantly (P < 0.05). 1High = RFI was > 0.5 SD above the mean; Medium = RFI was 0.5 SD above and below the mean; Low = RFI was < 0.5 SD below the mean. 2SE = pooled SE.
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