Table 1.

Proportion of ingredients and physical and chemical composition of experimental diets.

Item	Diet${}^{\mathrm{a}}$
	CON	WCS	CCS	WCSL	CCSL
Ingredients (g/kg dry matter)
Corn	680	580	580	580	580
Soybean meal	190	40	40	40	40
Cottonseed	–	340	340	340	340
Cottonseed cake	100	–	–	–	–
Urea	–	10	10	10	10
Vitamin–mineral premix${}^{\mathrm{b}}$	30	30	30	30	30
Chemical composition (g/kg dry matter)
Dry matter (g/kg as fed)	897.5	881.2	895.3	894.6	887.9
Organic matter	96.35	96.74	96.69	95.98	95.81
Crude protein	180.4	182.6	168.8	171.5	168.0
Ether extract	27.7	76.6	71.5	78.0	66.9
Neutral detergent fiber	232.8	310.1	305.9	313.8	314.6
Neutral detergent fiber${}_{\mathrm{ap}}^{\mathrm{c}}$	175.5	273.2	263.2	276.2	272.9
Acid detergent fiber	108.0	157.7	141.8	134.6	154.6
Indigestible acid detergent fiber	34.5	72.1	60.2	78.9	59.4
Cellulose	86.3	104.3	89.7	86.6	112.1
Hemicellulose	124.8	152.5	164.0	179.0	160.0
Lignin	21.6	53.4	52.1	48.0	42.5
Mineral matter	47.5	42.4	45.9	43.2	49.2

${}^{\mathrm{a}}$ CON $=$ control diet; WCS $=$ whole cottonseed; CCS $=$ crushed cottonseed; WCSL $=$ whole cottonseed treated with calcium lignosulfonate (100 g/kg); and CCSL $=$ crushed cottonseed treated with calcium lignosulfonate (100 g/kg). ${}^{\mathrm{b}}$ Composition: saline purgative UCB^® – 16.7 %; ADE vitamin powder – 16.7 %; and mineral supplement – 66.7 %. ${}^{\mathrm{c}}$ Corrected for ash and protein.