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Table 1 Effects of 6 and 20 h lairage time (LT) on hormone in serum, body weight, carcass weight, backfat thickness, and muscle parameters in pigs

From: Effect of lairage time prior to slaughter on stress in pigs: a path analysis

Items

LT

P-value

6 h

20 h

Dopamine (µg/ml)

0.061 ± 0.003

0.052 ± 0.003

0.0993

Serotonin (µg/ml)

0.547 ± 0.065

0.683 ± 0.084

0.2127

Cortisol (µg/ml)

0.041 ± 0.005

0.064 ± 0.007**

0.0099

Epinephrine (µg/ml)

0.040 ± 0.004**

0.020 ± 0.002

0.0007

Norepinephrine (µg/ml)

1.884 ± 0.037**

1.518 ± 0.071

0.0003

Body weight (Kg)

117.850 ± 1.747

117.525 ± 1.912

0.9013

Carcass weight (Kg)

90.167 ± 1.336

87.917 ± 1.427

0.2622

Backfat thickness (mm)

21.333 ± 0.964

20.500 ± 0.839

0.5212

Glycogen (µg/ml)

1.191 ± 0.087

1.073 ± 0.056

0.2683

Lactic acid (µg/ml)

3.421 ± 0.072

3.396 ± 0.030

0.7550

HSP70 protein

1.544 ± 0.082

1.562 ± 0.115

0.8970

  1. Values are presented as mean ± SE, n = 12, **p < 0.01, significantly different between 6 and 20 h groups, HSP70 was normalized with GAPDH. LT: Lairage time, SE: Standard Error, HSP70: Heat shock protein 70, GAPDH: Glyceraldehyde 3-phosphate dehydrogenase