The effect of soybean meal replacement with raw full-fat soybean in diets for broiler chickens

Figures & data

Table 1. Composition of the experimental diets (g/kg) fed to broilers in days 10–38 of the growing period.

Ingredient	C	Experimental diets
		RFFS4	RFFS8	RFFS12
Wheat	390.8	390.8	390.8	390.8
Maize	250.0	250.0	250.0	250.0
Soybean meal^a	273.0	240.2	207.4	174.6
Raw full-fat soybean^b	0	40	80	120
Soybean oil	45	37.8	30.6	23.4
l-Lysine HCl	3.0	3.0	3.0	3.0
l-Threonine	1.0	1.0	1.0	1.0
dl-Methionine	2.7	2.7	2.7	2.7
Limestone	14.5	14.5	14.5	14.5
Monocalciom phosphate	12.5	12.5	12.5	12.5
Sodium chloride	2.0	2.0	2.0	2.0
Sodium carbonate	2.5	2.5	2.5	2.5
Complex of minerals and vitamins^c	3.0	3.0	3.0	3.0
Calculated composition
Dry matter	881.7	882.7	880.7	879.7
Crude protein	204.7	204.7	204.7	204.6
Metabolizable energy (MJ/kg)	12.2	12.2	12.1	12.8
Fibre	26.8	25.6	28.1	29.4
Fat	64.2	64.8	63.7	63.2
Lysine	12.2	12.2	12.2	12.2
Methionine	5.73	5.73	5.73	5.73
Methionine + cysteine	9.26	9.26	9.26	9.26
Threonine	8.16	8.16	8.16	8.16
Tryptophan	2.41	2.41	2.41	2.41
Arginine	12.7	12.7	12.7	12.7
Ca	8.31	8.31	8.31	8.31
P	6.47	6.47	6.47	6.47
Available P	4.76	4.76	4.76	4.76
Na	1.66	1.66	1.66	1.66

^aSoybean meal contains 6.7 TI.

^bFull-fat soybean contains 13.2 TI.

^cPremix provided per kg diet: retinol 13,500.00 IU, cholecalciferol 499.80 IU, alpha tocopherol 35.10 mg, menadione 3.00 mg, thiamine 2.25 mg, riboflavin 6.00 mg, pyridoxine 5.10 mg, cobalamin 0.02 mg, calcium pantothenate 11.01 mg, niacin 32.49 mg, folic acid 1.50 mg, biotin 0.26 mg, betain 45.00 mg, choline chloride 250.20 mg, Fe 75.00 mg, Cu 15.00 mg, Mn 115.20 mg, Zn 108.00 mg, Se 0.30 mg, I 1.05 mg, Co 0.25 mg.

Table 2. Dietary treatment effects on Live body weight (BW) .

Groups	BW (g)
	10 days	17 days	24 days	31 days	38 days
C	291 ± 3.8^a	665 ± 9.5^a	1146 ± 22.9^a	1823 ± 36.0^a	2443 ± 56.3^a
RFFS4	287 ± 4.2^a	639 ± 8.9^a	1078 ± 25.1^a,b	1722 ± 30.2^a,b	2306 ± 41.2^a,b
RFFS8	286 ± 4.1^a	625 ± 8.7^a,b	1090 ± 19.2^a,b	1677 ± 33.2^a,b	2296 ± 38.3^a,b
RFFS12	289 ± 3.6^a	585 ± 7.2^b	1039 ± 13.9^b	1603 ± 26.0^b	2158 ± 37.9^b

Note: Different superscripts (a, b) indicate statistical significant difference between groups (p < .05).

Table 3. Dietary treatment effects on Feed conversion ratio (FCR).

Groups	FCR (kg/kg)
C	1.69 ± 0.04^a
RFFS4	1.73 ± 0.07^a,b
RFFS8	1.76 ± 0.08^a,b
RFFS12	1.90 ± 0.05^b

Note: Different superscripts (a, b) indicate statistical significant difference between groups (p < .05).

Table 4. Coefficients of apparent ileal amino acid digestibility and fat digestibility.

	C	RFFS4	RFFS8	RFFS12
Lysine	0.803^a	0.670^c	0.710^b,c	0.777^a,b
Methionine	0.841^a	0.831^a	0.851^a	0.872^a
Threonine	0.696^a	0.528^b	0.512^b	0.697^a
Isoleucine	0.734^a	0.511^b,c	0.461^c	0.614^b
Leucine	0.758^a	0.611^b	0.608^b	0.720^a
Phenylalanine	0.760^a	0.663^b,c	0.609^c	0.699^a,b
Histidine	0.717^a	0.520^c	0.468^c	0.620^b
Arginine	0.826^a	0689^b	0.665^b	0.765^a
Valine	0.737^a	0.587^b	0.574^b	0.702^a
Fat digestibility	0.873^a	0.736^b	0.804^b	0.808^b

Note: Different superscripts (a, b, c) indicate statistical significant difference between groups (p < .05).

Table 5. Parameters of polynomial functions.

	a	b	c
Lysine	0.3125	−3.845	79.57
Methionine	0.0484	−0.2988	83.955
Threonine	0.5516	−6.6513	69.845
Isoleucine	0.5875	−8.075	73.55
Leucine	0.4047	−5.1487	75.655
Phenylalanine	0.2922	−4.0988	76.505
Histidine	0.5453	−7.4012	71.995
Arginine	0.3703	−4.9613	82.655
Valine	0.4375	−5.600	74.100
Fat digestibility	0.2203	−2.9613	85.955

Table 6. The effect of RFFS on trypsin activity and weight of pancreas.

	C	RFFS4	RFFS8	RFFS12
Trypsin activity (U/ml)	580.5 ± 34.1^b	675.6 ± 35.4^a,b	754.1 ± 46.6^a	796.7 ± 31.6^a
Weight of pancreas (g)	5.56 ± 0.25^b	7.68 ± 0,39^a	7.65 ± 0.28^a	9.00 ± 0.41^a
Percentage of pancreas from body weight	0.23 ± 0.01^a	0.33 ± 0,05^a,b	0.33 ± 0.01^a,b	0.41 ± 0.01^b

Note: Different superscripts (a, b) indicate statistical significant difference between groups.

Table 7. The effect of feeding RFFS on intestinal morphology.

	C	RFFS4	RFFS8	RFFS12
Villi (µm)	966.22 ± 24.2^a	841.8 ± 18.4^b	922.1 ± 13.8^b	917.4 ± 14.9^a,b
Crypt (µm)	160.1 ± 5.72^a	135.3 ± 2.69^b	136.1 ± 3.55^b	157.1 ± 4.25^a
Villi/crypt	6.3 ± 0.15^b	6.3 ± 0.14^b	6.9 ± 0.14^a	6.0 ± 0.16^b

Note: Different superscripts (a, b) indicate statistical significant difference between groups.