Nano-Se exhibits limited protective effect against heat stress induced poor breast muscle meat quality of broilers compared with other selenium sources

Table 2 Growth performance of broilers

Item	Groups						SEM	P-value
Item	CON	HS	HS + SS	HS + SeY	HS + SeMet	HS + NanoSe	SEM	P¹	P²
Pre-feeding period (1–21 d)
BW, g/bird
1 d	46.75	46.80	46.85	47.00	46.60	46.80	0.06	0.833	0.353
21 d	652.16	659.35	664.45	647.22	653.05	647.74	4.97	0.588	0.204
ADFI, g/d	44.35	44.36	44.75	43.58	43.68	42.96	0.40	0.996	0.115
ADG, g/d	28.83	29.17	29.41	28.58	28.88	28.62	0.21	0.776	0.537
F/G	1.54	1.52	1.52	1.52	1.51	1.50	0.01	0.825	0.885
Test period (22–42 d)
BW, g/bird
22 d	658.50	656.94	655.06	654.69	657.44	653.50	0.66	0.612	0.307
42 d	2,229.29^*	1,649.71	1,643.00	1,669.99	1,625.93	1,654.71	7.56	< 0.001	0.474
ADFI, g/d	130.49^*	97.78	96.33	96.20	96.40	97.31	0.48	< 0.001	0.831
ADG, g/d	74.80^*	47.27	47.04	48.35	46.12	47.68	0.36	< 0.001	0.399
F/G	1.74^*	2.07	2.05	1.99	2.09	2.04	0.02	< 0.001	0.333

Results for BW, ADFI, ADG and F/G were expressed as mean with SEM (for 1–21 d, n = 10; for 22–42 d, n = 8). P¹ was the t-test P-value between CON and HS group. P² was the ANOVA P-value among these HS groups
BW Body weight, ADFI Average daily feed intake, ADG Average daily body gain, F/G Feed intake/body gain
^* There was a significantly difference between CON and HS groups (P < 0.05)

ISSN: 2049-1891