Table 2.

Proximate and detergent fiber (% DM basis) and metabolizable energy (MJ/kg DM) contents of vegetable and tuber crop wastes.

Vegetable wastes	DM	CP	EE	NDF	ADF	ADL	Ash	HC	ME
Cabbage (Brassica ol.)	37.4 ± 1.7c	17.3 ± 0.5b	4.6 ± 0.7c	25.4 ± 0.7c	16.5 ± 1.2c	4.4 ± 0.2a	8.7 ± 0.4a	7.8 ± 0.9c	11.0 ± 0.2b
Discarded tomato	46.5 ± 2.3b	17.2 ± 2.2b	2.5 ± 0.7c	26.4 ± 1.4c	12.6 ± 0.8c	2.3 ± 0.2b	5.3 ± 0.3b	13.7 ± 1.6a	10.6 ± 0.3b
Potato peel	49.4 ± 1.7a	8.4 ± 0.9c	5.7 ± 0.8b	27.3 ± 1.6c	18.5 ± 1.2b	6.2 ± 0.4a	4.4 ± 0.2c	8.7 ± 1.34c	8.8 ± 0.6c
Sweet potato leaf	46.7 ± 1.6b	18.5 ± 1.5a	10.7 ± 0.6a	30.4 ± 0.8b	16.3 ± 1.2c	4.6 ± 0.7a	3.7 ± 0.5c	14.1 ± 0.8a	11.3 ± 0.1a
Sweet potato vein	49.6 ± 1.4a	15.6 ± 0.8b	13.8 ± 0.2a	35.3 ± 1.2a	20.7 ± 0.4a	6.8 ± 0.3a	4.6 ± 0.4c	14.7 ± 1.2a	9.5 ± 0.6c
Moringa oleifera strip	49.8 ± 1.8a	20.6 ± 1.2a	6.4 ± 1.8b	36.5 ± 1.5a	24.4 ± 1.5a	4.4 ± 0.3a	5.6 ± 0.3b	12.1 ± 1.4b	9.2 ± 0.4c
Cassava peel	44.8 ± 1.3b	8.4 ± 0.4c	10.4 ± 0.8a	32.3 ± 1.3a	17.6 ± 1.1b	4.8 ± 0.5a	2.3 ± 0.4c	14.6 ± 1.4a	12.2 ± 0.4a
Cassava leaf	49.7 ± 0.8a	13.6 ± 0.8b	10.6 ± 0.3a	28.7 ± 1.7b	19.1 ± 0.8b	3.5 ± 0.3b	3.4 ± 0.6c	9.5 ± 1.9c	10.1 ± 0.2b
p values	0.013	< 0.001	< 0.001	< 0.001	0.021	< 0.001	< 0.001	< 0.002	< 0.032

Abbreviations: ADF, acid detergent fiber; ADL, acid detergent lignin; CP, crude protein; DM, dry matter; EE, ether extract; HC, hemicellulose; ME, metabolizable energy (MJ/kg DM); NDF, neutral detergent fiber.

^a,b,c,dmean with different superscripts down to column shows significant variation (p < 0.05).