Table 1.

Ingredients (%) of the experimental diets.

Ingredients	Starter I	Starter II		Grower		Prebreeder
		CTR	FBR	CTR	FBR	CTR	FBR
Wheat	35.2	39.4	-	43.8	-	43.5	-
Corn	24.9	24.9	36.9	16.3	22.9	24.8	21.8
Soybean meal 48%	25.2	25.5	10.5	-	-	6.3	-
Rye	-	-	12.0	-	28.7	-	33.1
Forage pellet1	-	-	5.4	-	16.3	-	11.5
Sunflower 28–30%	5.0	-	15.0	17.0	8.7	12.0	9.7
Wheat bran (high starch)	3.0	5.0	16.1	17.6	20.0	8.0	20.0
Dicalcium phosphate	2.33	2.17	1.70	1.83	1.40	1.53	0.97
Soybean oil	2.00	0.50	-	0.98	-	0.57	-
Limestone	0.97	0.97	0.80	0.90	0.63	1.97	1.63
Premix2	0.30	0.50	0.42	0.50	0.42	0.50	0.43
Sodium bicarbonate	0.27	0.31	0.41	0.36	0.40	0.29	0.37
L-lysine sulfate 54.6%	0.24	-	-	-	-	-	-
L-Lysine HCL 65%	-	0.19	0.32	0.22	0.16	0.12	0.15
Salt	0.23	0.20	0.05	0.17	0.05	0.22	0.06
DL-Methionine	0.20	0.22	0.16	0.11	0.11	0.11	0.10
Choline Cl-60%	0.10	0.10	0.10	0.10	0.10	0.07	0.08
L-Threonine	0.05	0.09	0.09	0.10	0.06	0.03	0.03
Xylanase + ß- glucanase	-	0.01	0.01	0.01	0.01	0.01	0.01
Vitamin C mg/kg3	200
Vitamin C mg/kg C+4		200	200	200	200	200	200
Vitamin C mg/kg C−5		0	0	0	0	0	0

Abbreviations: CTR, control diet; FBR, fibrous diet.

¹Forage pellet composition: Ray grass (67%) and barley straw (33%).

²Premix provided the following per kilogram of diet: vitamin A (retinyl acetate), 11,000 IU; vitamin D₃ (cholecalciferol), 3500 IU; vitamin E (DL-α-tocopheryl acetate), 100 IU; vitamin K₃, 3.00 mg; vitamin B₁ (thiamin), 3.00 mg; vitamin B₂ (riboflavin), 6.00 mg; vitamin B₅ (pantothenic acid), 13.00 mg; vitamin B₆ (pyridoxine hydrochloride), 4.00 mg; vitamin B₁₂ (cyanocobalamin), 0.02 mg; vitamin B₃ (nicotinic acid), 30.00 mg; vitamin B₉ (folic acid), 1.50 mg; vitamin B₇ (biotin), 0.20 mg; iodine (calcium iodate), 1.25 mg; Mn (manganous oxide), 120.00 mg; Cu (cupric sulfate), 16.00 mg; Zn (zinc oxide), 110 mg; Se (sodium selenite), 0.30 mg; Fe (iron sulphate), 40.00 mg.

³Vitamin C product source: Rovimix STAY–C 35 (0.0571% inclusion).

⁴C+: Diets vitamin C supplemented.

⁵C−: Diets not vitamin C supplemented.