Table 1 Effect of supplementation of Nano-NS on growth performance of broilers under high ambient temperature.

BWG, g.bird.d^− 1

1–21 d

35.34^c

37.71^b

37.32^b

38.05^b

40.90^a

15.06

0.015

22–35 d

55.81^c

57.68^b

57.66^b

59.51^a

60.34^a

19.69

0.020

1–35 d

45.59^c

46.87^b

46.66^b

47.84^a

48.68^a

26.94

< 0.001

FI, g.bird.d^− 1

1–21 d

45.62

46.24

45.57

46.20

46.38

21.44

0.284

22–35 d

136.2

136.1

135.2

136.6

136.1

38.16

0.125

1–35 d

81.83

82.18

81.37

82.34

82.26

46.18

0.503

FCR, g feed. g gain^− 1

1–21 d

1.290^a

1.225^b

1.221^b

1.213^bc

1.191^c

0.072

0.001

22–35 d

2.441^a

2.360^b

2.345^b

2.296^c

2.255^d

0.075

< 0.001

1–35 d

1.794^a

1.753^b

1.744^b

1.722^c

1.689^d

0.042

< 0.001

Mortality %

5

5

5

4

5

-

-

EPEF

248

260

261

273

281

-

-