## 3 Results
### Intestinal Morphometric Parameters  
There were linear and quadratic responses (\(p<0.05\)) for ileal musculars mucosa thickness (MMT) (R\({}^{2}=0.853\); \(p=0.001\)) in response to MSE levels (Table 2) Linear increases were observed for duodenum length (R\({}^{2}=0.328\); \(p=0.012\)), duodenal villus width (VW) (R\({}^{2}=0.867\); \(p=0.003\)), jejun MMT (R\({}^{2}=0.845\); \(p=0.001\)), ileal VW (R\({}^{2}=0.491\); \(p=0.001\)), ileal crypt depth (CD) (R\({}^{2}=0.779\); \(p=0.002\)), and ileal musculars externa thickness (MET) (R\({}^{2}=0.824\); \(p=0.001\)) as MSE levels increased.  
There were treatment effects (\(p<0.05\)) on the lengths of the duodenum and ileum, duodenal (VH, VW, CD, and MMT), jejun (VH, VW, CD, LPT, and MMT), and ileal (VH, VW, MMT, and VH/CD). The MSE treatments (MSE60, MSE90, and MSE120) resulted in longer duodenum and ileum lengths (\(p<0.05\)) than the NC and PC treatments. The birds that were administered with the MSE treatments (MSE60, MSE90, and MSE120) had higher (\(p<0.05\)) duodenal VH and CD than the birds in PC but were statistically similar (\(p>0.05\)) with the birds in NC, MSE90, and MSE120. The NC and PC groups had lower duodenal VW and MMT compared to all the MSE treatment groups, whose duodenal VW and MMT values did not differ (\(p>0.05\)). Treatment MSE60 promoted the highest (\(p<0.05\)) jejun VH, followed by those in MSE90 and MSE120, and the lowest jejun VH was from the NC and PC groups. Birds on MSE90 and MSE120 had the highest (\(p<0.05\)) jejun VW, followed by those in MSE60, and the lowest was from the NC and PC groups.  
\begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline \multicolumn{1}{c}{\multirow{2}{*}{**Parameters**}} & \multicolumn{6}{c}{\({}^{1}\)**Treatments**} & \multicolumn{6}{c}{\(p\)**Value**} \\ \cline{2-10}  & **NC** & **PC** & **MSE60** & **MSE90** & **MSE120** & **3 SEM** & **GLM** & **Linear** & **Quadratic** \\ \hline SLWT & 1918 & 1932 & 1956 & 1971 & 1939 & 21.00 & 0.154 & 0.135 & 0.517 \\ Carcass yield (\%) & 69.61 b  & 0.270 & 0.002 & 0.967 & 0.436 \\ HCW & 1335 b  & 1341 b  & 1588 & 0.006 & 0.296 & 0.967 \\ CCW & 1295 c  & 1307 b  & 694.40 & 678.4 & 633.7 & 6.630 & 0.325 & 0.610 & 0.299 \\ Thigh weight & 156.5 & 142.2 & 160.2 & 160.7 & 161.7 & 16.12 & 0.415 & 0.176 & 0.510 \\ Gizzard & 43.00 & 44.40 & 45.90 & 44.80 & 45.90 & 1.140 & 0.542 & 0.004 & 0.174 \\ Liver & 55.40 & 55.70 & 55.10 & 55.80 & 49.50 & 3.010 & 0.084 & 0.399 & 0.220 \\ Spleen & 3.12 b  & 3.22 a  & 0.012 & 0.001 & 0.001 & 0.001 \\ \hline \hline \end{tabular}
\end{table}
Table 1: Carcass and meat quality characteristics (g, unless otherwise stated) of six-week-old broiler chickens (\(n=125\)) orally administered with varying levels of moríga seed extract (MSE) in drinking water.  
Further, birds reared on NC and PC had lower CD, LPT, and MMT than those on MSE\({}_{60}\), MSE\({}_{90}\), and MSE\({}_{120}\). Treatments NC and PC promoted lower ileal VH than on the MSE\({}_{60}\), MSE\({}_{90}\), and MSE\({}_{120}\) treatments, but PC, MSE\({}_{90}\), and MSE\({}_{120}\) were comparable (\(p>0.05\)). Birds on MSE\({}_{90}\) and MSE\({}_{120}\) had the highest (\(p<0.05\)) ileal VW, followed by those in MSE\({}_{60}\), and the lowest ileal VW was from the NC and PC groups. The MSE\({}_{60}\), MSE\({}_{90}\), and MSE\({}_{120}\) had higher (\(p<0.05\)) MMT than the NC group. However, PC and MSE\({}_{60}\) promoted similar (\(p>0.05\)) ileal MMT. Birds on MSE\({}_{60}\), MSE\({}_{90}\), and MSE\({}_{120}\) had the highest (\(p<0.05\)) ileal VH/CD, followed by those on PC, and the lowest ileal VH/CD was from the NC group.