Effect of lairage time prior to slaughter on stress in pigs: a path analysis
Abstract Background Pre-slaughter process during transportation, handling, and lairage causes stress in pigs, affecting animal welfare and meat quality. Therefore, lairage factors are important for relieving stress. A total of 24 LYD (Landrace × Yorkshire × Duroc) barrows were used to investigate th...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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BMC
2023-12-01
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| Series: | Porcine Health Management |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40813-023-00350-w |
| _version_ | 1797387973556174848 |
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| author | Jeongeun Lee Darae Kang Kwanseob Shim |
| author_facet | Jeongeun Lee Darae Kang Kwanseob Shim |
| author_sort | Jeongeun Lee |
| collection | DOAJ |
| description | Abstract Background Pre-slaughter process during transportation, handling, and lairage causes stress in pigs, affecting animal welfare and meat quality. Therefore, lairage factors are important for relieving stress. A total of 24 LYD (Landrace × Yorkshire × Duroc) barrows were used to investigate the effect of 6 and 20 h lairage time (LT) on cortisol, serotonin, and catecholamine in blood and physiological factors in muscle, and to verify the causal relationship between these factors. Results The results revealed that cortisol was increased (0.064 ± 0.007 µg/ml), and epinephrine (0.020 ± 0.002 µg/ml) and norepinephrine (1.518 ± 0.071 µg/ml) were lower at a LT of 20 h than those at 6 h, and there was no significant effect on the muscle and carcass characteristic factors. In addition, cortisol and norepinephrine showed a negative correlation (r = -50,346, p = 0.0121), epinephrine and glycogen had a positive correlation (r = 0.4417, p = 0.0307), and serotonin and heat shock protein 70 (HSP70) were positively correlated (r = 0.4715, p = 0.0200). Path analysis indicated that the increase in LT had a direct effect on cortisol, epinephrine, and norepinephrine, and an indirect effect on muscle glycogen. Conclusion This study confirmed the effect of the increase in LT from 6 to 20 h in the lairage room on the stress response of pigs. These findings support the legal requirements that advocate for shorter lairage times, in alignment with enhanced animal welfare standards. |
| first_indexed | 2024-03-08T22:33:59Z |
| format | Article |
| id | doaj.art-072e3c9c9be3452997f1f6ec2958e21c |
| institution | Directory Open Access Journal |
| issn | 2055-5660 |
| language | English |
| last_indexed | 2024-03-08T22:33:59Z |
| publishDate | 2023-12-01 |
| publisher | BMC |
| record_format | Article |
| series | Porcine Health Management |
| spelling | doaj.art-072e3c9c9be3452997f1f6ec2958e21c2023-12-17T12:33:52ZengBMCPorcine Health Management2055-56602023-12-01911810.1186/s40813-023-00350-wEffect of lairage time prior to slaughter on stress in pigs: a path analysisJeongeun Lee0Darae Kang1Kwanseob Shim2Department of Agricultural Convergence Technology, Jeonbuk National UniversityDepartment of Animal Biotechnology, Jeonbuk National UniversityDepartment of Agricultural Convergence Technology, Jeonbuk National UniversityAbstract Background Pre-slaughter process during transportation, handling, and lairage causes stress in pigs, affecting animal welfare and meat quality. Therefore, lairage factors are important for relieving stress. A total of 24 LYD (Landrace × Yorkshire × Duroc) barrows were used to investigate the effect of 6 and 20 h lairage time (LT) on cortisol, serotonin, and catecholamine in blood and physiological factors in muscle, and to verify the causal relationship between these factors. Results The results revealed that cortisol was increased (0.064 ± 0.007 µg/ml), and epinephrine (0.020 ± 0.002 µg/ml) and norepinephrine (1.518 ± 0.071 µg/ml) were lower at a LT of 20 h than those at 6 h, and there was no significant effect on the muscle and carcass characteristic factors. In addition, cortisol and norepinephrine showed a negative correlation (r = -50,346, p = 0.0121), epinephrine and glycogen had a positive correlation (r = 0.4417, p = 0.0307), and serotonin and heat shock protein 70 (HSP70) were positively correlated (r = 0.4715, p = 0.0200). Path analysis indicated that the increase in LT had a direct effect on cortisol, epinephrine, and norepinephrine, and an indirect effect on muscle glycogen. Conclusion This study confirmed the effect of the increase in LT from 6 to 20 h in the lairage room on the stress response of pigs. These findings support the legal requirements that advocate for shorter lairage times, in alignment with enhanced animal welfare standards.https://doi.org/10.1186/s40813-023-00350-wPigStressAnimal welfareHormonesLairage |
| spellingShingle | Jeongeun Lee Darae Kang Kwanseob Shim Effect of lairage time prior to slaughter on stress in pigs: a path analysis Porcine Health Management Pig Stress Animal welfare Hormones Lairage |
| title | Effect of lairage time prior to slaughter on stress in pigs: a path analysis |
| title_full | Effect of lairage time prior to slaughter on stress in pigs: a path analysis |
| title_fullStr | Effect of lairage time prior to slaughter on stress in pigs: a path analysis |
| title_full_unstemmed | Effect of lairage time prior to slaughter on stress in pigs: a path analysis |
| title_short | Effect of lairage time prior to slaughter on stress in pigs: a path analysis |
| title_sort | effect of lairage time prior to slaughter on stress in pigs a path analysis |
| topic | Pig Stress Animal welfare Hormones Lairage |
| url | https://doi.org/10.1186/s40813-023-00350-w |
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