| Treatments | Hay | Proportions in the concentrate mix | |
| Maize bran | Groundnut haulm | ||
| T1 (control) | Ad libitum | 0 | 0 |
| T2 | Ad libitum | 100 | 0 |
| T3 | Ad libitum | 50 | 50 |
| T4 | Ad libitum | 0 | 100 |