Pelleting and particle size reduction of corn increase net energy and digestibility of fiber, protein, and fat in corn-soybean meal diets fed to group-housed pigs

Table 1 Ingredient composition of experimental diets (as-fed basis)

Item, %	Diet form	Meal			Pellet
	Corn particle size, μm	700	500	300	700	500	300
Ground corn, 700 μm		78.100	-	-	78.100	-	-
Ground corn, 500 μm		-	78.100	-	-	78.100	-
Ground corn, 300 μm		-	-	78.100	-	-	78.100
Soybean meal		17.150	17.150	17.150	17.150	17.150	17.150
Soybean oil		1.500	1.500	1.500	1.500	1.500	1.500
Dicalcium phosphate		0.891	0.891	0.891	0.891	0.891	0.891
Ground limestone		0.700	0.700	0.700	0.700	0.700	0.700
L-Lys·HCl (78.8% Lys)		0.272	0.272	0.272	0.272	0.272	0.272
DL-Met (99% Met)		0.024	0.024	0.024	0.024	0.024	0.024
L-Thr (99% Thr)		0.063	0.063	0.063	0.063	0.063	0.063
Sodium chloride		0.400	0.400	0.400	0.400	0.400	0.400
Titanium dioxide		0.400	0.400	0.400	0.400	0.400	0.400
Vitamin-micromineral premix^a		0.500	0.500	0.500	0.500	0.500	0.500

^aThe vitamin-micromineral premix provided the following quantities of vitamins and micro minerals per kg of complete diet: vitamin A as retinyl acetate, 10,622 IU; vitamin D₃ as cholecalciferol, 1,660 IU; vitamin E as DL-alpha-tocopheryl acetate, 66 IU; vitamin K as menadione nicotinamide bisulfate, 1.40 mg; thiamin as thiamine mononitrate, 1.08 mg; riboflavin, 6.49 mg; pyridoxine as pyridoxine hydrochloride, 0.98 mg; vitamin B₁₂, 0.03 mg; D-pantothenic acid as D-calcium pantothenate, 23.2 mg; niacin, 43.4 mg; folic acid, 1.56 mg; biotin, 0.44 mg; Cu, 20 mg as copper chloride; Fe, 123 mg as iron sulfate; I, 1.24 mg as ethylenediamine dihydriodide; Mn, 59.4 mg as manganese hydroxychloride; Se, 0.27 mg as sodium selenite and selenium yeast; and Zn, 124.7 mg as zinc hydroxychloride

ISSN: 2049-1891