Table 1 Number of hens (n) and least square means (±SE) for FCS

Laying house

 1

7376

1.80 ± 0.01

1.41 ± 0.01

1.75 ± 0.01

1.44 ± 0.01

6.40 ± 0.03

 2

4816

1.89 ± 0.02

1.36 ± 0.01

1.50 ± 0.02

1.47 ± 0.01

6.21 ± 0.05

Level

 Top¹

2400

1.87 ± 0.02

1.39 ± 0.02

1.64 ± 0.02

1.46 ± 0.02

6.36 ± 0.06

 Middle

4772

1.85 ± 0.01

1.41 ± 0.01

1.64 ± 0.01

1.44 ± 0.01

6.33 ± 0.04

 Bottom

5020

1.81 ± 0.01

1.36 ± 0.01

1.60 ± 0.01

1.46 ± 0.01

6.23 ± 0.04

Row

 1

1096

1.69 ± 0.03

1.19 ± 0.03

1.29 ± 0.03

1.32 ± 0.02

5.49 ± 0.09

 2

1316

1.57 ± 0.03

1.15 ± 0.02

1.28 ± 0.03

1.41 ± 0.02

5.41 ± 0.08

 3

1524

1.56 ± 0.02

1.25 ± 0.02

1.41 ± 0.03

1.35 ± 0.03

5.58 ± 0.07

 4

1648

1.60 ± 0.02

1.23 ± 0.02

1.38 ± 0.02

1.27 ± 0.03

5.48 ± 0.07

 5

1632

1.83 ± 0.02

1.42 ± 0.02

1.79 ± 0.02

1.52 ± 0.03

6.57 ± 0.07

 6

1616

1.93 ± 0.02

1.45 ± 0.02

1.79 ± 0.03

1.65 ± 0.03

6.82 ± 0.07

 7

1700

2.11 ± 0.02

1.63 ± 0.02

2.07 ± 0.02

1.62 ± 0.03

7.44 ± 0.07

 8

1660

2.43 ± 0.02

1.78 ± 0.02

1.99 ± 0.03

1.49 ± 0.03

7.68 ± 0.07