Table 4. Cost (BDT) involvement in different diets for per kg LWG of buffalo bulls.

Cost (BDT/per kg gain)	Experimental diets
	T1	T2	T3	SED	Sig.
Roughage	59.80a ± 3.07	26.08b ± 0.88	59.80a ± 3.81	2.35	***
Protein supplement	114.8a ± 5.48	111.20a ± 7.28	27.20b ± 1.65	4.37	***
Refusal	6.77a ± 0.80	4.20ac ± 0.71	4.18bc ± 0.74	0.61	*
Total feed	181.37a ± 8.54	141.46b ± 8.59	91.35c ± 5.12	6.20	***
Management	35.00 ± 0.00	35.00 ± 0.00	35.00 ± 0.00	0.00	NS
All Total	216.37a ± 8.54	176.46b ± 8.59	126.33c ± 5.12	6.20	***

Means within columns bearing different superscripts differ significantly.

^* = p < 0.05,

^***= p < 0.001, NS = Non-significant.