Effect of Dietary Supplementation of Organic Acids on Performance, Intestinal Histomorphology, and Serum Biochemistry of Broiler Chicken

Table 2

Effect of organic acid supplementation on the performance and carcass characteristics of broiler chicken.

Parameters	Treatment groups							Sig.
	T1	T2	T3	T4	T5	T6	T7
Final body weight gain (g)	1525.$4^{\text{a}}\mathrm{\hspace{0.17em}\hspace{0.17em}}$± 23.6	1629.$8^{\text{bc}}$ ± 27.6	1666.$7^{\text{bc}}$ ± 22.1	1631.$8^{\text{bc}}$ ± 29.9	1704.$2^{\text{b}}$ ± 26.3	1602.$4^{\text{c}}$ ± 32.6	1673.$0^{\text{bc}}$ ± 26.8	*
Feed consumption (g)	3081.3 ± 53.0	2998.6 ± 56.3	3083.3 ± 43.3	2986 ± 41.9	3118.6 ± 63.7	2964.3 ± 113.8	3078.3 ± 40.9	NS
Feed conversion ratio	2.0$2^{\text{a}}$ ± 0.03	1.8$4^{\text{b}}$ ± 0.03	1.8$5^{\text{b}}$ ± 0.05	1.8$3^{\text{b}}$ ± 0.05	1.8$3^{\text{b}}$ ± 0.02	1.8$5^{\text{b}}$ ± 0.11	1.8$4^{\text{b}}$ ± 0.03	*
Dressing percentage	70.79 ± 0.63	71.74 ± 0.57	72.70 ± 0.79	71.77 ± 1.35	72.07 ± 0.97	70.77 ± 1.43	71.30 ± 0.38	NS
Gizzard weight (g)	38.33 ± 0.88	36.33 ± 2.72	38.0 ± 3.05	43.33 ± 2.33	40.66 ± 0.33	42.66 ± 4.09	41.66 ± 4.40	NS
Heart weight (g)	10.33 ± 0.33	10.0 ± 0.57	12.0 ± 1.52	10.2 ± 1.00	11.0 ± 1.15	11.6 ± 1.52	10.55 ± 0.66	NS
Liver weight (g)	41.66 ± 3.17	49.0 ± 2.51	47.33 ± 0.88	50.0 ± 1.73	44.66 ± 1.20	51.66 ± 6.00	41.33 ± 4.05	NS
Blood weight (g)	127.3 ± 16.3	126.0 ± 23.4	114.3 ± 16.8	123.3 ± 16.0	137.6 ± 31.7	146.0 ± 16.2	123.0 ± 3.60	NS
Feather weight (g)	190.6 ± 24.9	212.6 ± 17.1	184.3 ± 17.3	186.6 ± 9.82	172.6 ± 31.4	201.0 ± 19.0	198.0 ± 5.29	NS
Head weight (g)	50.0 ± 5.77	53.3 ± 3.33	62.0 ± 8.66	58.3 ± 4.40	55.0 ± 7.63	56.6 ± 12.0	50.0 ± 5.57	NS

*Means within the same row with different superscripts are significantly different ($P\le .05$). NS: Non significant.