. 2022 May 17;10:e13308. doi: 10.7717/peerj.13308

Table 4. Effects of probiotics in water and feed on the slaughter performance of broilers (%).

Parameter	CON	Drinking water with probiotics						SEM	P-value
		CP1	CP2	CP3	P1	P2	P3
1∼21 days
Eviscerated carcass yield	62.43	64.25	68.78	66.57	65.49	69.23	70.38	0.09	0.42
Half-eviscerated carcass yield	80.83	80.30	80.35	78.94	82.27	77.53	79.05	0.04	0.33
Breast yield	13.73	13.23	13.13	13.87	13.37	11.98	12.63	0.02	0.45
Thigh yield	20.47	20.02	18.68	19.25	20.02	17.17	17.80	0.03	0.34
Carcass lean percentage	34.20	33.25	31.81	33.12	33.39	29.15	30.43	0.05	0.37
Abdominal fat yield	4.98	4.75	5.49	5.12	4.33	5.21	4.70	0.01	0.42
Pancreas index	0.36	0.40	0.42	0.40	0.32	0.31	0.32	0.06	0.11
Gland stomach index	0.59	0.51	0.53	0.55	0.54	0.55	0.54	0.06	0.25
Muscular stomach index	2.36	2.12	2.15	2.02	2.17	2.30	2.38	0.33	0.34
22∼42 days
Eviscerated carcass yield	68.05^ab	64.75^b	67.10^ab	68.82^a	64.81^b	65.99^ab	64.91^b	0.02	0.03
Half-eviscerated carcass yield	83.44	81.19	79.25	83.07	79.93	80.49	79.09	0.03	0.15
Breast yield	15.07	14.86	14.91	15.56	15.56	15.07	17.69	0.02	0.30
Thigh yield	20.54	20.19	20.48	19.86	19.84	21.16	19.30	0.01	0.08
Carcass lean percentage	37.61	35.06	35.39	35.43	35.39	36.22	36.99	0.03	0.37
Abdominal fat yield	5.73	7.16	7.41	5.56	5.61	5.03	5.65	0.02	0.23
Pancreas index	0.25	0.29	0.26	0.25	0.29	026	0.20	0.05	0.10
Gland stomach index	0.30	0.39	0.37	0.32	0.35	0.36	0.35	0.05	0.11
Muscular stomach index	1.82^ab	2.19^a	1.90^ab	2.19^a	1.74^b	1.85^ab	1.71^b	0.17	0.04