## 3 Results and Discussion
\begin{table}
\begin{tabular}{c c c c c c c c c c c c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Items**} & \multicolumn{4}{c}{**Initial Feeding Period**} & \multicolumn{4}{c}{**First flattening Period**} & \multicolumn{4}{c}{**MidFattening Period**} & \multicolumn{4}{c}{**Finish Fatening Period**} & \multicolumn{4}{c}{**Whole Period**} \\ \cline{2-13}  & **CON\({}^{1}\)** & \(\mathbf{T}^{2}\) & **SEM\({}^{3}\)** & \(\mathbf{Pr}^{4}\)** & **CON** & **T** & **SEM** & **Pr** & **CON** & **T** & **SEM** & **Pr** & **CON** & **T** & **SEM** & **Pr** & **CON** & **T** & **SEM** & **Pr** \\ \hline Initial body weight (gq) & 212.08 & 201.25 & 3.78 & 0.09 & 359.90 & 367.42 & 8.10 & 0.52 & 444.75 & 455.30 & 10.12 & 0.49 & 555.00 & 560.42 & 14.90 & 0.80 & 213.15 & 22.78 & 0.09 \\ Final body weight (gq) & 39.95 & 367.42 & 8.10 & 0.52 & 444.75 & 4552.12 & 10.24 & 0.49 & 558.00 & 560.40 & 14.90 & 0.80 & 696.25 & 698.75 & 25.47 & 0.94 & 0.962 & 698.75 & 26.74 & 0.94 \\ Daily weight gain (gq).1  & 0.87 & 0.98 & 0.03 & 0.05 & 0.71 & 0.73 & 0.02 & 0.52 & 0.63 & 0.60 & 0.04 & 0.06 & 0.88 & 0.68 & 0.09 & 0.08 & 0.07 & 0.80 & 0.04 & 0.71 \\ Feed line (gq).1  & 4.82 & 5.83 & 0.07 & 0.01 & 10.78 & 10.93 & 0.07 & 0.01 & 10.86 & 10.48 & 0.20 & 0.01 & 113.38 & 12.47 & 0.25 & 0.01 & 10.12 & 98.17 & 0.07 \\ Coordinate (gq).2  & 2.28 & 2.34 & 0.02 & 0.01 & 6.60 & 4.58 & 0.11 & 0.01 & 8.25 & 6.62 & 0.22 & 0.01 & 115.04 & 10.47 & 0.27 & 0.01 & 7.34 & 0.65 & 0.07 & 0.01 \\ Rice straw (gq).1  & 2.13 & - & 4.94 & - & 4.19 & - & 0.05 & 2.60 & - & - & 0.02 & 1.52 & - & - & 0.02  
The effects of WCBS on carcass yield and quality traits were determined and the data are shown in Table 4. The WCBS supplement significantly increased back fat thickness (BFT, \(p<0.05\)). There are no significant changes, (\(p<0.05\)) were reordered for slaughter weight and marbling score between control and experimental diet. However, the WCBS-based diet slightly increased the slaughter weight and marbling score more than the control diet. Besides, Rib-eye area (REA), dressing percentage, and quality traits (lean color, fat color, texture, maturity and quality grade) were almost too similar to control, but slight decreases were noted in the animal fed with WCBS. Previous studies involving different forage-to-concentrate ratios have demonstrated variable results with respect to carcass traits in fattening cattle. Higher subcutaneous and mesenteric adipose tissue weights in a high concentrate diet compared to a high roughage diet were due to the difference in the TDN intake among dietary treatments [32]. For carcass quality traits, the marbling score was slightly higher in the WCBS group (\(p>0.05\)) and lean color in the WCBS group was a brighter red color (\(p=0.08\)). The results of the present study based on a higher TDN intake in the WCBS group strongly agree with a previous study asserting that marbling tends to be positively associated with carcass weight and subcutaneous fat thickness [32; 33]. Fat color tended to be a creamier white compared to the CON (\(p>0.05\)). Barley sources in finishing diets produce lighter lean than maize grains, while fat color has been known to be determined by the concentration of carotenoids [33; 34]. In addition, a previous study consistent with this result showed that up to 80% of carotenoids are destroyed in the ensiling process [8]. Consistent with the results of [PERSON] et al. [13], the current study indicates that a WCBS/concentrate combination was more feasible in improving carcass quality without the negative effect of carotenoids on fat color in beef cattle than by the intake of concentrate. Thus, these studies suggest that WCBS can enhance the appearance for the consumer's choice of beef color, if they want a lighter meat, although texture, maturity, and quality grades were slightly higher in the CON (\(p>0.05\)). The meat in the WCBS group had a lower moisture content and CP than that in the CON group, indicating that CF in the WCBS group was higher than that in the CON (\(p<0.05\); Table 5).