Parameter

Diet²

p

L1

(80%)

L2

(87.5%)

L3

(95%)

L4

(102.5%)

L5

(110%)

PD

(g/d)

4.42^c ± 0.22

6.84^b ± 0.17

8.43^a ± 0.12

8.90^a ± 0.10

8.69^a ± 0.39

0.000

Protein quality (b)³

158^b ± 4.6

182^a ± 0.9

186^a ± 2.9

193^a ± 2.6

188^a ± 2.3

0.004

Lys efficiency (bc⁻¹)⁴

34.2^a ± 1.0

35.6^a ± 0.2

33.9^a ± 0.5

32.5^ab ± 0.4

29.5^b ± 0.4

0.009