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. 2018 Dec 22;98(5):2087–2093. doi: 10.3382/ps/pey558

Table 4.

Effect of feeding different amounts of NPP and phytase on eggshell strength, tibia strength, and mineral fraction1.

Eggshell resistance to fracture (RF) Tibia
Dietary Inorganic Phytase
NPP P addition addition wk 0 wk 4 RF Ca P Ash
Treatment % % FYT/kg g g g % % %
1 0.12 0.00 0.0 3,286 3,628 17,251c 14.3c 6.2c 38.1c
2 0.23 0.11 0.0 3,741 3,809 20,850a,b 15.2b,c 7.1b,c 41.8b
3 0.34 0.22 0.0 3,674 3,854 23,448a 16.9a 8.8a 45.4a
4 0.12 0.00 300 3,468 3,546 19,782b,c 15.1b,c 7.3b 42.2b
5 0.12 0.00 600 3,411 3,580 21,776a,b 15.7a,b 7.8a,b 43.2a,b
6 0.12 0.00 1,200 3,693 3,421 23,346a 16.1a,b 8.0a,b 44.3a,b
7 0.12 0.00 1,800 3,804 3,624 23,283a 15.9a,b 8.5a 45.6a
SEM 152.04 130.9 1,106.6 0.05 0.39 1.14
P < 0.18 0.28 0.003 0.03 0.002 0.001

1Numbers with distinct letter per column were statistically different (P < 0.05).