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NMR-based metabonomics reveals relationship between pre-slaughter exercise stress, the plasma metabolite profile at time of slaughter, and water-holding capacity in pigs.
- Source :
-
Meat science [Meat Sci] 2010 Jan; Vol. 84 (1), pp. 108-13. Date of Electronic Publication: 2009 Aug 15. - Publication Year :
- 2010
-
Abstract
- Nuclear magnetic resonance (NMR)-based metabonomics was applied to investigate the effects of pre-slaughter exercise stress on the plasma metabolite profile at time of slaughter. The study included a total of 40 slaughter pigs, which were exposed to one of the following treatments: No pre-slaughter stress (control treatment), pre-slaughter exercise on a treadmill and subsequently 0, 1, or 3h rest prior to slaughter. NMR-based metabonomics revealed a clear difference in the plasma metabolite profile at time of slaughter between control pigs and pigs exercised without rest, which mainly could be ascribed to increased plasma lactate due to exercise. A resting period of 1 or 3h prior to slaughter reversed the stress-induced perturbations in the plasma metabolite profile. The plasma metabolite profile at time of slaughter was highly correlated with muscle temperature 1 min post-mortem, and a correlation to WHC was also demonstrated. Lactate was found to be the metabolite of importance for the association between the plasma metabolome and pH, temperature and WHC.
- Subjects :
- Acetic Acid blood
Animals
Body Temperature
Female
Fourier Analysis
Hydrogen-Ion Concentration
Lactic Acid blood
Reproducibility of Results
Time Factors
Magnetic Resonance Spectroscopy methods
Meat analysis
Metabolome
Metabolomics methods
Physical Conditioning, Animal
Stress, Physiological
Sus scrofa physiology
Water analysis
Subjects
Details
- Language :
- English
- ISSN :
- 1873-4138
- Volume :
- 84
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Meat science
- Publication Type :
- Academic Journal
- Accession number :
- 20374761
- Full Text :
- https://doi.org/10.1016/j.meatsci.2009.08.031