Table 10.

Relative bioavailability of the P in soybean meal, spray-dried plasma protein, and meat and bone meal in Experiment 3.

Sample	Total P (%)	Bioavailability values1 (%)	Bioavailable content2 (%)
		Tibia ash (mg)	Tibia ash (mg)
Soybean meal	0.59	36.4c	0.21
Spray-dried plasma protein	0.98	125.0a	1.22
Meat and bone meal	4.89	75.5b	3.69

^a-cValues within columns containing no common superscripts are significantly different (P < 0.05) as determined using the regression coefficients and standard errors in the multiple regression equation in footnote 3 of Table 9.

¹Calculated by the slope ratio method using the multiple regression equation in footnote 3 of Table 9. Bioavailability values for soybean meal and spray-dried plasma protein are relative to the P in KH₂PO₄ alone(X₁) which was set at 100%. The value for meat and bone meal is relative to KH₂PO₄ + Ca (X₂) in the multiple regression equation.

²Bioavailable content = (total P × bioavailability value)/100.