Table 1.

Chemical composition of used diets (g/100 g dry-weight basis)

	Grazing/browsing dieta	Indoor dietb	p value
Protein	10.7 ± 5.5b	19.5 ± 0.5a	**
Lipids	2.1 ± 1.9	4.8 ± 0.9	NS
Ash content	12.2 ± 7.2a	7.4 ± 0.5b	*
Crude fiber	21.6 ± 9.3a	15.0 ± 0.3b	*
N-free extract	53.4 ± 4.4	53.3 ± 0.1	NS

Means with different letters indicate differences between columns

NS not significant

*p < 0.05; **p < 0.001

^aSemiarid rangeland vegetation

^bGrain concentrate (rolled corn 55%, wheat bran 17%, barley 15%, soybean 9.3%, and vitamins and minerals 3.7%) supplemented with 1.5 kg lucerne hay