Effects of extrusion of rice bran on performance and phosphorous bioavailability in broiler chickens

Table 1 Composition (g/kg, as fed basis) of the experimental diets^a

Ingredients and composition	Starter					Finisher
Ingredients and composition	T1	T2	T3	T4	T5	T1	T2	T3	T4	T5
Corn	592.1	407.6	315.2	407.6	315.2	648.4	463.8	371.5	463.8	371.5
Soybean meal, (480 g crude protein/kg)	357.3	334.5	323.0	334.5	323	300.1	277.1	265.7	277.1	265.7
Raw rice bran	0	200	300	0	0	0	200	300	0	0
Extruded rice bran	0	0	0	200	300	0	0	0	200	300
Soybean oil	13	21.3	25.5	21.3	25.5	17.8	26.2	30.3	26.2	30.3
Dicalcium phosphate	14.4	13.2	12.6	13.2	12.6	13.3	12.1	11.5	12.1	11.5
Calcium carbonate	12.5	13.1	13.5	13.1	13.5	11.7	12.4	12.7	12.4	12.7
Salt	4.2	3.9	3.8	3.9	3.8	3.1	2.9	2.8	2.9	2.8
Vitamin premix^b	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5
Mineral premix^c	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5
DL-methionine (990 g methionine/kg)	1.5	1.4	1.4	1.4	1.4	0.6	0.5	0.5	0.5	0.5
Calculated nutrients^d
Crude protein	208	208	208	208	208	188	188	188	188	188
ME, kcal/kg	2900	2900	2900	2900	2900	3000	3000	3000	3000	3000
Lys	11.2	11.2	11.2	11.2	11.2	9.8	9.8	9.9	9.8	9.9
Met	4.8	4.7	4.7	4.7	4.7	3.6	3.6	3.6	3.6	3.6
Met + Cys	8.2	8.2	8.2	8.2	8.2	6.8	6.8	6.8	6.8	6.8
Calcium	9.1	9.1	9.1	9.1	9.1	8.4	8.4	8.4	8.4	8.4
Total P	6.7	8.8	9.8	8.8	9.8	6.3	8.4	9.4	8.4	9.4
Available P	4.1	4.1	4.1	4.1	4.1	3.8	3.8	3.8	3.8	3.8
Sodium	1.8	1.8	1.8	1.8	1.8	1.4	1.4	1.4	1.4	1.4

^aStarter (8–21 d); finisher (22–42 d)
T1 control, T2 20 % raw rice bran, T3 30 % raw rice bran, T4 20 % extruded rice bran, T5 30 % extruded rice bran
^bVitamin concentrations per kg of diet: vitamin A 10000 IU, vitamin D₃ 2000 ICU, vitamin E 10 IU, vitamin K₃ 2.5 mg, thiamin 1.5 mg, riboflavin 5 mg, niacin 40 mg, pantothenic acid 10 mg, pyridoxine 5 mg, folic acid 1 mg, vitamin B₁₂ 0.01 mg, biotin 0.15 mg, choline chloride 1200 mg
^cMineral concentrations per kg of diet: Mn 60 mg, Zn 40 mg, Fe 80 mg, Cu 8 mg, Se 0.15 mg
^dBased on ingredient composition in NRC (1994)

ISSN: 2055-0391