Skip to main content
. 2021 Jul 13;99(8):skab211. doi: 10.1093/jas/skab211

Table 9.

Concentrations (g per femur) and percentage of bone ash, bone Ca, and bone P in pigs fed diets containing different concentrations of phytate and phytase dose1,2

Item Bone ash, g per femur Bone Ca, g per femur Bone P, g per femur Bone ash, % Bone Ca, % Bone P, % Ca:P in bone
0.23% phytate-bound P3
 0 PhyG, FTU/kg 7.52f 2.85f 1.34g 45.55g 38.15 17.87 2.14
 500 PhyG, FTU/kg 10.72e 4.17e 2.00f 51.84ef 39.02 18.75 2.08
 1,000 PhyG, FTU/kg 11.26de 4.37de 2.09f 53.18bcd 38.74 18.61 2.08
 2,000 PhyG, FTU/kg 12.76bc 4.96c 2.39cd 53.99abc 38.90 18.72 2.09
 4,000 PhyG, FTU/kg 12.67bcd 4.84cd 2.34de 52.45def 38.48 18.55 2.07
0.29% phytate-bound P4
 0 PhyG, FTU/kg 7.74f 2.92f 1.30g 43.20h 38.48 18.46 2.10
 500 PhyG, FTU/kg 11.55cde 4.43de 2.15ef 51.41f 38.50 18.68 2.06
 1,000 PhyG, FTU/kg 12.53bcd 5.20bc 2.56bcd 52.81cde 38.91 19.15 2.03
 2,000 PhyG, FTU/kg 13.83ab 5.33abc 2.61bc 54.37ab 38.63 18.89 2.04
 4,000 PhyG, FTU/kg 14.31a 5.55ab 2.70ab 54.63a 38.87 18.95 2.05
0.35% phytate-bound P5
 0 PhyG, FTU/kg 6.85f 2.62f 1.25g 43.42h 38.38 18.13 2.09
 500 PhyG, FTU/kg 11.45cde 4.42de 2.12ef 51.39f 38.86 18.64 2.09
 1,000 PhyG, FTU/kg 14.76a 5.73a 2.73ab 54.03abc 38.90 18.79 2.07
 2,000 PhyG, FTU/kg 14.94a 5.80a 2.84a 54.47a 38.91 19.06 2.04
 4,000 PhyG, FTU/kg 14.39a 5.50ab 2.71ab 54.05abc 38.38 18.89 2.02
SEM 1.00 0.32 0.15 0.63 0.71 0.32 0.01
P-value
 Phytate-bound P <0.001 <0.001 <0.001 0.820 0.995 0.008 <0.001
 PhyG <0.001 <0.001 <0.001 <0.001 0.394 <0.001 <0.001
 Phytate-bound P × PhyG 0.009 0.004 0.003 <0.001 0.932 0.440 0.095

1Data are least squares means of eight observations per treatment, except for 0.35% phytate-bound P without PhyG diet which represents seven observations per treatment.

2FTU, phytase units.

3Linear and quadratic increase for bone ash (% and g per femur), bone Ca (g per femur), and bone P (g per femur): P < 0.05; Quadratic increase for bone P (%): P < 0.05; Linear increase for Ca:P in bone: P < 0.05.

4Linear and quadratic increase for bone ash (% and g per femur), bone Ca (g per femur), and bone P (g per femur): P < 0.05; Tendency for linear and quadratic increase for bone P (%): P < 0.10; Quadratic increase for Ca:P in bone: P < 0.05.

5Linear and quadratic increase for bone ash (% and g per femur), bone Ca (g per femur), and bone P (g per femur): P < 0.05; Linear and quadratic increase for bone P (%): P < 0.05; Linear increase for Ca:P in bone: P < 0.05.

a–hMeans within a column lacking a common letter are different (P ≤ 0.05).