. 2021 Apr 27;100(8):101224. doi: 10.1016/j.psj.2021.101224

Table 3.

Growth performance (BW, ADFI, ADG, and FCR) of broilers fed dietary treatments.¹

		NC	CuSO₄, mg/kg			Cu₂O, mg/kg			SEM	P-value
Item			15	75	150	15	75	150		Source	Dose	Source*Dose
BW, g	d 21	628.7	639.1	629.6	630.9	601.5	631.0	649.7	11.92	0.608	0.421	0.121
	d 35	1684.5^ab	1718.3^ab	1715.4^ab	1710.7^ab	1616.0^b	1718.2^ab	1783.6^a	29.21	0.748	0.038	0.033
	d 42	2420.8^xy	2505.6^xy	2489.7^xy	2473.8^xy	2404.4^y	2514.9^xy	2585.5^x	37.51	0.741	0.025	0.053
ADG, g/d	d 0-21	28.1	28.4	28.1	28.2	26.8	28.1	29.1	0.56	0.647	0.319	0.166
	d 21-35	75.0	77.0	77.6	76.7	72.5	77.7	80.6	1.70	0.912	0.060	0.113
	d 35-42	105.2	112.5	108.5	112	108.2	113.8	114.6	2.57	0.615	0.019	0.307
	d 0-42	56.6^b	58.6^ab	58.3^ab	57.9^ab	55.6^b	58.9^ab	60.5^a	0.88	0.932	0.013	0.019

ADFI, g/d	d 0-21	43.3^AB	44.0^A	43.0^AB	41.6^B	41.2^B	41.8^AB	43.3^AB	0.53	0.127	0.371	0.001
	d 21-35	133.1^ab	141.3^a	133.2^ab	137.2^ab	131.1^b	131.5^b	136.7^ab	2.03	0.032	0.062	0.043
	d 35-42	180.6	194.2	187.4	187.6	183.3	190.8	189	3.49	0.545	0.052	0.179
	d 0-42	96.1^B	101.5^A	97.4^AB	97.1^AB	94.8^B	96.5^B	98.7^AB	1.16	0.076	0.267	0.004

FCR, g/g	d 0-21	1.54	1.55	1.53	1.48	1.54	1.49	1.49	0.02	0.425	0.035	0.612
	d 21-35	1.78	1.84	1.73	1.80	1.81	1.70	1.70	0.04	0.142	0.027	0.594
	d 35-42	1.72	1.73	1.73	1.68	1.70	1.69	1.65	0.04	0.374	0.584	0.960
	d 0-42	1.70	1.73	1.67	1.68	1.71	1.64	1.63	0.02	0.063	0.004	0.663

Abbreviations: ADG, average daily gain; ADFI, average daily feed intake; BW, body weight; FCR, feed conversion ratio; NC, negative control.

^a-bMeans with different superscripts within a row indicate a significant difference of source*dose (P ≤ 0.05).

^x-yMeans with different superscripts within a row indicate a tendency toward the significance of source*dose (P ≤ 0.1).

Data are means of 12 replicates per treatment.