Fig. 2
Effect of HS and supplemental 25-OH-D3 in broilers at d 39 on Ca and P homeostasis. Plasma A 25-OH-D3, and B 24(R), 25-dihydroxyvitamin D3 (24(R), 25-(OH)2-D3), C ratio 24(R), 25-(OH)2-D3 to 25-OH-D3, and D calcium and phosphorus. mRNA abundance of E RT-PCR analysis for mRNA expression of vitamin D receptor (VDR), sodium-dependent phosphorus transport protein II (NaPi-IIb) and calbindin-1 in duodenum, as well as VDR, NaPi-IIa and calbindin-1 in kidney. Treatments Ctrl, PF and HS without common superscript are significantly different at P < 0.05. * denotes significant difference between HS and HS + 25-OH-D3 at P < 0.05