## 3 Results
### Effects of Vitamin Form and Level on Plasma Vitamin Concentration for Piglets
\begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Form**} & \multicolumn{3}{c}{**Non-Microencapsulated**} & \multicolumn{3}{c}{**Microencapsulated**} & \multicolumn{3}{c}{\(p\)**-Value**} \\ \cline{2-11}  & \multicolumn{3}{c}{**CRV**} & \multicolumn{3}{c}{**CRV**} & \multicolumn{2}{c}{**SEM**} & \multirow{2}{*}{**Form**} & \multirow{2}{*}{**Level**} & \multirow{2}{*}{**Form**} \(\times\) \\
**Level** & **NRC** & **75\%** & **100\%** & **NRC** & **75\%** & **100\%** & & & **Level** \\ \hline Retinol, ng/mL & 105.13 & 116.10 & 102.18 & 157.90 & 142.97 & 133.60 & 26.00 & 0.078 & 0.538 & 0.691 \\
25(OH)D\({}_{3}\), ng/mL & 26.48 & 21.75 & 25.12 & 22.89 & 22.11 & 21.36 & 2.08 & 0.110 & 0.339 & 0.420 \\ \(\alpha\)-tocopherol, ug/mL & 0.57 & 0.59 & 0.51 & 0.55 & 0.58 & 0.51 & 0.15 & 0.945 & 0.874 & 0.999 \\ Menadione, ng/mL & 29.23 & 31.71 & 29.64 & 27.52 & 32.67 & 28.37 & 2.80 & 0.773 & 0.375 & 0.879 \\ Thiamine, ng/mL & 15.12 & 11.34 & 15.41 & 14.31 & 14.91 & 12.61 & 3.23 & 0.997 & 0.887 & 0.614 \\ Riboflavin, ng/mL & 2.68 & 1.47 & 2.70 & 2.16 & 2.46 & 1.31 & 0.93 & 0.686 & 0.865 & 0.456 \\ Nicotinamide, ng/mL & 31.60 & 32.60 & 32.60 & 33.04 & 33.64 & 32.94 & 3.95 & 0.907 & 0.955 & 0.931 \\ Pantotheanate, ng/mL & 7.99 & 7.05 & 7.17 & 7.59 & 7.34 & 7.87 & 1.35 & 0.862 & 0.909 & 0.919 \\ Vitamin B\({}_{6}\), ng/mL & ND & ND & ND & ND & ND & ND & - & - & - \\ Biotin, ng/mL & 2.35 & 0.93 & 1.88 & 0.88 & 1.32 & 1.12 & 0.50 & 0.159 & 0.605 & 0.218 \\ Folic acid, ng/mL & 8.95 & 8.62 & 8.97 & 9.87 & 9.23 & 8.19 & 1.61 & 0.851 & 0.875 & 0.854 \\ Vitamin B\({}_{12}\), pmol/L & 137.87 & 139.71 & 132.88 & 130.14 & 137.51 & 134.88 & 11.89 & 0.790 & 0.903 & 0.920 \\ \hline \hline \end{tabular}  
* NRC = basal diet for National Research Council (NRC) recommendation level of vitamins, 75% CRV = basal diet for 75% commercial vitamin recommendation, 100% CRV = basal diet for 100% commercial vitamin recommendation, SEM, standard error of the mean; ND, no detected.  
\end{table} 
Table 5: Effects of vitamin forms and levels on growth performance for weaned piglets. \begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Form**} & \multicolumn{3}{c}{**Non-Microencapsulated**} & \multicolumn{3}{c}{**Microencapsulated**} & \multicolumn{3}{c}{**_p-Value**} \\ \cline{2-11}  & \multicolumn{3}{c}{**CRV**} & \multicolumn{3}{c}{**CRV**} & \multicolumn{2}{c}{**SEM**} & \multirow{2}{*}{**Form**} & \multirow{2}{*}{**Level**} & \multirow{2}{*}{**Form**} \(\times\) \\
**Level** & **NRC** & **75\%** & **100\%** & & & & & & **Level** \\ \hline
0–14 d & & & & & & & & & & \\ ADG, g/d & 284 & 271 & 277 & 275 & 277 & 297 & 6.32 & 0.295 & 0.129 & 0.117 \\ ADFI, g/d & 430 & 417 & 411 & 420 & 430 & 423 & 9.37 & 0.674 & 0.552 & 0.436 \\ G-F & 0.66 & 0.65 & 0.67 & 0.65 & 0.64 & 0.70 & 0.04 & 0.766 & 0.103 & 0.577 \\
14–28 d & & & & & & & & & & \\ ADG, g/d & 372 b,c & 393 a,b,c & 425 a & 366 c & 413 a,b & 430 a & 9.57 & 0.433 & \(<\)0.001 & 0.37 \\ ADFI, g/d & 714 & 700 & 726 & 733 & 706 & 713 & 13.00 & 0.708 & 0.258 & 0.489 \\ G-F & 0.52 a & 0.56 b & 0.58 c & 0.50 a & 0.59 c & 0.60 c & 0.03 & 0.606 & \(<\)0.001 & 0.039 \\
0–28 d & & & & & & & & & & \\ ADG, g/d & 321 c & 327 b,c & 351 a,b & 320 c & 345 a,b,c & 364 a & 6.12 & 0.058 & \(<\)0.001 & 0.296 \\ ADFI, g/d & 574 & 558 & 568 & 577 & 568 & 568 & 8.52 & 0.559 & 0.382 & 0.833 \\ G-F & 0.56 a & 0.58 a & 0.62 b & 0.56 a & 0.61 b,c & 0.64 c & 0.03 & 0.099 & \(<\)0.001 & 0.277 \\ \hline \hline \end{tabular}  
* \({}^{\rm a,b,c}\) Different superscripts within a row indicate a significant difference (\(p<0.05\)); NRC = basal diet for National Research Council (NRC) recommendation level of vitamins, 75% CRV = basal diet for 75% commercial vitamin recommendation, 100% CRV = basal diet for 100% commercial vitamin recommendation; ADG = average daily gain, ADFI = average daily feed intake, G-F = gain:feed, SEM, standard error of the mean.  
\end{table} 
Table 5: Effects of vitamin forms and levels on growth performance for weaned piglets.