Table 10 Fatty acid classes, ratios, indexes and enzyme activity in meat of longissimus thoracis muscle of Morada Nova lambs of different sexes subjected to feed restriction

ΣSFA

1731

1837

1853

1988^a

2007^a

1425^b

0.579

<.0001

ΣUFA

1707

1896

1748

2131^a

2069^a

1151^b

0.210

<.0001

ΣMUFA

1578

1741

1585

1981^a

1926^a

997^b

0.248

<.0001

ΣPUFA

129^b

155^ab

163^a

150

142

154

0.008

0.504

Σω6

99.0^b

120^a

131^a

116

110

124

0.003

0.212

Σω3

26.10

30.3

28.8

29.9

27.9

27.4

0.188

0.515

ω6/ω3

3.84^b

3.99^b

4.53^a

3.90^b

3.96^b

4.50^a

0.003

0.009

h/H

1.60^ab

1.77^a

1.54^b

1.74^a

1.65^ab

1.52^b

0.008

0.015

DFA

2328

2583

2397

2826^a

2769^a

1713^b

0.185

<.0001

TI

1.78

1.70

1.81

1.64^b

1.72^b

1.93^a

0.351

0.003

AI

0.75^b

0.72^b

0.84^a

0.70^b

0.74^b

0.87^a

0.020

<.0001

Δ⁹ desaturase C16

4.26

4.17

4.28

4.36

4.28

4.07

0.925

0.631

Δ⁹ desaturase C18

69.8

69.0

67.9

72.6^a

72.1^a

61.9^b

0.428

<.0001

Elongase

68.9^b

70.9^a

67.4^b

69.6

69.1

68.4

<.0001

0.240