Table 1.

Experimental diets for Holstein nursing bull calves fed nonmedicated milk replacer only (CON; n = 7), nonmedicated milk replacer supplemented with 3% menhaden fish oil (FAT; n = 8), or nonmedicated milk replacer isoenergetically supplemented with corn starch (CHO; n = 8)

	Treatmentsa,b,c
Item	CON	CHO	FAT
	g/L
Milk replacer	173.9	173.9	173.9
Fish oil	–	–	5.2
Starch	–	11.8	–
Dried Brewer’s spent grain, gd	111.1	109.1	104.7
	g/kg
Dry matter	965.9	966.0	965.9
Organic matter	901.1	901.3	901.0
Crude protein	210.7	210.6	210.7
NDFap	11.9	12.6	11.4
Acid detergent fiber	6.2	6.5	6.0
Acid detergent lignin	3.5	3.5	3.5
Ether extract	152.0	151.8	181.0
Nonfibrous carbohydrates	512.2	576.9	512.6
	Energy available in feed Mcal/kg
Metabolizable energy	4.7	5.0	5.0
Net energy for maintenance	2.7	2.8	2.8
Net energy for gain	3.5	3.7	3.7

^aExperimental diets consisted of milk replacer alone for CON, milk replacer supplemented with 3% fish oil for FAT, and milk replacer supplemented with corn starch for CHO to be isoenergetic with FAT.

^bCommercial mineral mix was also offered ad libitum with a composition (g/kg) of Sodium min. 377.6, Sodium max. 389.4; (ppm) manganese min. 2,400, iron min. 2,400, Copper min. 260, Copper max. 380, Zinc min. 320, Iodine min. 70, and Cobalt min. 40.

^cSodium in the form of sodium chloride; manganese as manganous oxide; iron as ferrous carbonate, magnesium as magnesium oxide, copper as copper oxide, zinc as zinc oxide, calcium as calcium iodate, cobalt as cobalt carbonate, and red iron oxide for color.

^dDried brewer’s grain mixture composed of a mixture of dried brewer’s grains (Ichytysaurus IPA, Wildhorse German Amber Red Ale, 39 N, Tectonic Event, Great Basin Brewing-Reno, NV; Pilsner, Pigeon Head Brewing-Reno, NV; Honey Ale, 10 Torr-Reno, NV) was offered at a rate of 115.6 g/day DM basis for to all treatments.