Table 4.

Effect of L-Threonine and Mycofix Plus (MP) on carcass traits of broilers exposed to Aflatoxin B₁ at day 35, Cobb 500.

				Breast	Drumsticks	WBNT 1	Carcass	Liver	Spleen
Treatmenst	L-Threonine, % of Requirements	MP, g/kg	Aflatoxin B1, 500 µg/kg	Relative Weights, % of Live Body Weight
T1	100	0	−	22.75 a,b	20.34	18.53	61.61 a,b	2.68	0.09
T2	100	0	+	19.89 c	19.88	18.79	58.55 c	2.77	0.10
T3	100	1	−	20.39 c	19.99	18.68	59.06 c	2.89	0.10
T4	100	1	+	19.73 c	19.97	19.27	58.97 c	2.67	0.11
T5	125	0	−	21.14 b,c	19.94	18.60	59.68 b,c	2.62	0.09
T6	125	0	+	21.42 b,c	19.29	18.41	59.12 c	2.62	0.09
T7	125	1	−	23.32 a	20.13	18.94	62.38 a	2.53	0.11
T8	125	1	+	20.45 c	19.28	18.57	58.30 c	2.71	0.09
Pooled SEM				0.60	0.37	0.34	0.76	0.16	0.01
Main Effects			Levels	Means 2
L-Threonine			100	20.69 b	20.04	18.82	59.55	2.75	0.10
			125	21.59 a	19.66	18.63	59.87	2.62	0.09
Mycofix Plus			0	21.30	19.86	18.58	59.74	2.67	0.09
			1	20.98	19.84	18.86	59.68	2.70	0.10
Aflatoxin B1			−	21.90 a	20.10	18.68	60.68 a	2.68	0.10
			+	20.37 b	19.61	18.76	58.74 b	2.69	0.10
Main Effects and Interaction Effects				p-values
L-Threonine				*	NS	NS	NS	NS	NS
Mycofix Plus				NS	NS	NS	NS	NS	NS
Aflatoxin B1				***	NS	NS	***	NS	NS
L-Threonine × Mycofix Plus				*	NS	NS	NS	NS	NS
L-Threonine × Aflatoxin B1				NS	NS	NS	NS	NS	NS
Mycofix Plus × Aflatoxin B1				NS	NS	NS	NS	NS	NS
L-Threonine × Mycofix Plus × Aflatoxin B1				**	NS	NS	**	NS	NS

^a–c Means within a column with differing superscripts are significantly different at * p < 0.05; ** p < 0.01; *** p < 0.001. NS, p ≥ 0.05. ¹ Wings, Back, Neck, Thigh. ² Means represent 32 pens of chickens with 10 birds per pen (n = 32/group).