AI Article Synopsis
- This study investigated possible biomarkers for chronic heat stress in Kagoshima Berkshire pigs by comparing their blood and health indicators during summer and winter seasons.
- Summer-finished pigs had lower carcass quality than winter-finished pigs, suggesting that high temperatures negatively affect pig farming.
- The research found that oxidative stress markers (d-ROMs) and the albumin/globulin ratio (A/G) may be effective indicators of heat stress in pigs.
Article Abstract
Introduction: Potential biomarkers for chronic seasonal heat stress in Kagoshima Berkshire pigs reared in the subtropical region were investigated by comparing the biomarker changes in the summer (a period of chronic heat stress) and winter (a thermoneutral period) seasons.
Material And Methods: Pigs were allocated to summer- and winter-finishing cohorts, 12 each. The evaluations included assessment of carcass traits and internal organs' normality carried out at the time of slaughter, and measurement of biomarkers in whole blood: derivatives of reactive oxygen metabolites (d-ROMs) and biological antioxidant potential as markers of oxidative stress, and serum amyloid A and albumin/globulin (A/G) ratio as markers of acute and chronic inflammation, respectively.
Results: The summer-finished pigs reared under subtropical field conditions showed lower carcass quality than the winter-finished pigs, indicating a potential adverse effect of summer temperatures on the swine industry. Marginal changes were observed in d-ROMs and the A/G ratio between the summer- and winter-finishing cohorts.
Conclusion: The results demonstrate that d-ROMs and the A/G ratio could be used as sensitive markers for heat stress under field conditions.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9281520 | PMC |
| http://dx.doi.org/10.2478/jvetres-2022-0024 | DOI Listing |
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