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Table 4 The effects of dietary treatments on growth performance and carcass traits from 14 to 35 d post-hatch

From: Sorghum surpasses wheat as a feed grain for broiler chickens following dietary crude protein reductions

Treatment

Growth performance

Carcass trait, g/kg

CP

Grain

Weight Gain, g/bird

Feed intake, g/bird

FCR, g/g

Mortality, %

Fad-pad

Pectoralis major

Pectoralis minor

Leg quarters

205

Wheat

2,184a

3,135

1.436c

1.93

8.77b

206ab

22.6

196

Sorghum

2,122b

3,076

1.450bc

2.44

8.01b

212a

19.8

198

175

Wheat

1,964c

3,095

1.575a

1.05

8.68b

211a

20.0

198

Sorghum

2,096b

3,067

1.464b

3.65

10.89a

197b

18.5

202

SEM

18.9

24.2

0.0089

0.012

0.364

3.4

1.58

3.9

Main effects: CP

205

2,153

3,106

1.443

2.19

8.39

209

21.2

197

175

2,030

3,081

1.520

2.35

9.79

204

19.2

200

Main effects: Grain

Wheat

2,074

3,115

1.506

1.49

8.73

209

21.3

197

Sorghum

2,109

3,072

1.457

3.05

9.45

204

19.1

200

Significance (P)

Crude protein (CP)

 < 0.001

0.321

 < 0.001

0.887

 < 0.001

0.204

0.165

0.458

Feed grain (FG)

0.036

0.075

 < 0.001

0.173

0.047

0.241

0.274

0.508

CP × FG interaction

 < 0.001

0.522

 < 0.001

0.372

 < 0.001

0.010

0.702

0.894

  1. Means within columns not sharing a similar superscript are significantly different at the 5% level of probability
  2. SEM Standard error of mean