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Table 3 The effect of TC (42 °C for 6 h; posthatch day 28) during 4 time terminals (at the beginning and after 1, 3 and 5 h of TC) on plasma protein pattern and cortisol of broiler chicks subjected to different TM protocols at ED 12–18 (n = 5)

From: Biochemical and molecular investigation of thermal manipulation protocols during broiler embryogenesis and subsequent thermal challenge

Parameters

Groups

Treatments

Control

TM1

TM2

TM3

TM4

Total proteins

TN

28.4 ± 0.3 aw

37.5 ± 1.1 bw

36.0 ± 1.3 bw

35.0 ± 1.4 bw

37.1 ± 1.4 bw

TC1

21.9 ± 0.1 ax

27.2 ± 1.0 bx

27.5 ± 0.9 bx

26.6 ± 1.1 bx

26.8 ± 1.6 bx

TC3

22.7 ± 0.2 ax

27.4 ± 1.1 bx

27.5 ± 1.1 bx

26.7 ± 1.0 bx

27.5 ± 1.2 bx

TC5

22.6 ± 1.5 ax

29.6 ± 0.6 bx

28.0 ± 1.0 bx

28.1 ± 1.0 bx

28.2 ± 0.8 bx

Albumin

TN

17.5 ± 0.6 aw

20.2 ± 1.1 bw

20.2 ± 1.0 bw

20.3 ± 1.2 bw

20.3 ± 1.1 bw

TC1

12.0 ± 0.2 ax

15.5 ± 0.5 bx

15.4 ± 0.3 bx

14.0 ± 0.7 bx

14.8 ± 0.4 bx

TC3

12.1 ± 0.2 ax

15.2 ± 0.8 bx

15.9 ± 0.7 bx

14.7 ± 1.0 bx

14.9 ± 1.0 bx

TC5

12.4 ± 0.1 ax

15.1 ± 0.7 bx

14.7 ± 0.4 bx

14.6 ± 1.7 bx

15.1 ± 2.3 bx

Corticosterone

TN

0.21 ± 0.03aw

0.21 ± 0.02 aw

0.22 ± 0.01 aw

0.22 ± 0.03 aw

0.20 ± 0.02 aw

TC1

0.21 ± 0.00 aw

0.20 ± 0.01 aw

0.21 ± 0.01 aw

0.22 ± 0.05 aw

0.21 ± 0.03 aw

TC3

0.21 ± 0.01 aw

0.21 ± 0.11 aw

0.21 ± 0.01 aw

0.21 ± 0.12 aw

0.21 ± 0.01 aw

TC5

0.22 ± 0.05 aw

0.21 ± 0.05 aw

0.20 ± 0.01 aw

0.21 ± 0.05 aw

0.22 ± 0.01 aw

  1. Control 37.8 °C, TM 1 Thermal manipulation at 38.5 °C for 18 h, TM 2 Thermal manipulation at 39 °C for 18 h, TM 3 Thermal manipulation at 39.5 °C for 18 h, TM 4 Thermal manipulation at 40 °C for 18 h, TC Thermal challenged
  2. a–b within rows, means ± SD with different superscripts differ significantly (P < 0.05)
  3. w-x Between naïve and TC chicks within a parameter, means ± SD with different superscripts differ significantly (P < 0.05)