Table 4.

Carcass yield and relative organ weights of broiler chickens fed a reduced nPP diet supplemented with phytase, probiotic, Saccharomyces cerevisiae, and fumaric acid at 35 days of age.

Treatments 1	Carcass Traits				Immune Organs
	Dressing, %	Liver, %	Gizzard, %	Heart, %	Thymus, %	Spleen, %	Bursa of Fabricius, %
PC	77.72 ab	1.98 b	1.54 b	0.42	0.101	0.084 c	0.084 c
NC	75.13 bc	1.95 b	1.57 ab	0.42	0.102	0.065 d	0.069 d
PHY	79.41 a	1.92 b	1.45 b	0.44	0.099	0.088 bc	0.091 b
PRO	79.50 a	1.92 b	1.59 ab	0.43	0.098	0.111 a	0.083 c
SC	76.91 ab	2.01 ab	1.48 b	0.40	0.101	0.109 a	0.098 a
FA	73.38 c	2.07 a	1.68 a	0.42	0.101	0.099 ab	0.101 a
SEM	1.58	0.041	0.069	0.019	0.002	0.007	0.002
p-value	0.002	0.008	0.04	0.72	0.83	˂0.001	˂0.001
Contrast probability vs. NC
PC	0.11	0.56	0.68	0.90	0.78	0.01	˂0.001
PHY	0.01	0.36	0.11	0.65	0.63	0.002	˂0.001
PRO	0.004	0.46	0.75	0.45	0.44	˂0.001	˂0.001
SC	0.27	0.23	0.22	0.35	0.99	˂0.001	˂0.001
FA	0.28	0.008	0.11	0.78	0.91	˂0.001	˂0.001

^a–d Means with no common letters within the same column varied significantly at p < 0.05. ¹ Treatments’ abbreviations see Table 2.