101 Evaluation of Vitamin D on Performance and Bone Mineral Density in Finishing Pigs

Abstract The objective of this study was to evaluate the vitamin D3 (vitD) and 25-hydroxy D (25-OHD) requirements for finisher pig performance bone density. Seventy-two pigs (62 ± 11.1 kg BW) were allotted 36 pens (n = 2 pigs/pen) across 4 dietary treatments 9 pens/trt) 51 d. Corn-soybean meal mash diet were: 1) Diet containing 75 IU/kg vitD; 2) 150 vitD (NRC requirement); 3) 750 4) As 1 plus 0.0125% 25-OHD achieve total equivalent vitD. Pigs weighed feed disappearance recorded at start end calculate ADG, ADFI G:F. Serum concentrations determined on d 42. On 51, one per pen euthanized mineral density rib, tibia fibula. Data analyzed as a complete randomized design with experimental unit. Overall, ADG did not differ between through (1.26, 1.31, 1.34, 1.27 kg/d, respectively (P > 0.05). Further, However, G:F tended increase increased (0.34, 0.36, 0.37 0.35, respectively, P 0.068). Rib, fibula 9.9, 11.9, 23.3 36.6 ng/mL 1-4, < 0.001). In conclusion, deficiency achieved treatment in finishing all had equal provided D3.