Difference between revisions of "Opalka 2004 Br Poult Sci"
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{{Publication | {{Publication | ||
|title=Opalka JR, Wicke M, Gellerich FN, Schmidt R, Rosner F, Zierz S, von Lengerken G (2004) Mitochondrial function in turkey skeletal muscle - impact on meat quality. Br | |title=Opalka JR, Wicke M, Gellerich FN, Schmidt R, Rosner F, Zierz S, von Lengerken G (2004) Mitochondrial function in turkey skeletal muscle - impact on meat quality. Br Poult Sci 45:367-79. | ||
|info=[http://www.ncbi.nlm.nih.gov/pubmed/15327123 PMID: 15327123 ] | |||
|authors=Opalka JR, Wicke M, Gellerich FN, Schmidt R, Rosner F, Zierz S, von Lengerken G | |authors=Opalka JR, Wicke M, Gellerich FN, Schmidt R, Rosner F, Zierz S, von Lengerken G | ||
|year=2004 | |year=2004 | ||
|journal= | |journal=Br Poult Sci | ||
|abstract=1. M. iliotibialis (MIT) and M. pectoralis (MP) of the BUT Big 6 and Kelly BBB turkey were characterised with respect to physical properties, mitochondrial function, metabolic state, morphology and meat quality. | |abstract=1. M. iliotibialis (MIT) and M. pectoralis (MP) of the BUT Big 6 and Kelly BBB turkey were characterised with respect to physical properties, mitochondrial function, metabolic state, morphology and meat quality. | ||
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6. Turkey breast muscle was restricted in its ability to oxidise pyruvate, especially in those animals that tended to develop intramuscular acidosis post mortem. | 6. Turkey breast muscle was restricted in its ability to oxidise pyruvate, especially in those animals that tended to develop intramuscular acidosis post mortem. | ||
7. It is concluded that the in vivo metabolic environment results in acidosis and impaired meat quality, at least in turkey M. pectoralis. | 7. It is concluded that the ''in vivo'' metabolic environment results in acidosis and impaired meat quality, at least in turkey M. pectoralis. | ||
| | |keywords=Turkey | ||
|mipnetlab=DE Goettingen Wicke M, DE Magdeburg Gellerich FN | |||
|discipline=Mitochondrial Physiology, Biomedicine | |||
}} | }} | ||
{{Labeling | {{Labeling | ||
|organism=Birds | |||
|tissues=Skeletal muscle | |||
|preparations=Permeabilized tissue | |||
|topics=Substrate | |||
|instruments=Oxygraph-2k | |||
|discipline=Mitochondrial Physiology, Biomedicine | |discipline=Mitochondrial Physiology, Biomedicine | ||
}} | }} | ||
Latest revision as of 09:55, 9 November 2016
| Opalka JR, Wicke M, Gellerich FN, Schmidt R, Rosner F, Zierz S, von Lengerken G (2004) Mitochondrial function in turkey skeletal muscle - impact on meat quality. Br Poult Sci 45:367-79. |
Opalka JR, Wicke M, Gellerich FN, Schmidt R, Rosner F, Zierz S, von Lengerken G (2004) Br Poult Sci
Abstract: 1. M. iliotibialis (MIT) and M. pectoralis (MP) of the BUT Big 6 and Kelly BBB turkey were characterised with respect to physical properties, mitochondrial function, metabolic state, morphology and meat quality.
2. Mitochondrial enzyme activity and respiration rates in MP declined with increasing age while glycolytic enzyme activity remained nearly constant.
3. There were no major differences between BUT Big 6 and Kelly BBB with respect to histological, histochemical or biochemical variables. In spite of the greater adult weight of BUT Big 6, body proportion was equal in both strains.
4. In agreement with the histochemical findings MIT showed higher oxidative capacities, while glycolytic enzyme activity was higher in MP.
5. Pyruvate was the best substrate for oxidative phosphorylation in MIT, but not in MP. Pyruvate dehydrogenase (PDH) activity was up to 15 times less in MP and blood lactate was correlated with intramuscular pH.
6. Turkey breast muscle was restricted in its ability to oxidise pyruvate, especially in those animals that tended to develop intramuscular acidosis post mortem.
7. It is concluded that the in vivo metabolic environment results in acidosis and impaired meat quality, at least in turkey M. pectoralis. • Keywords: Turkey
• O2k-Network Lab: DE Goettingen Wicke M, DE Magdeburg Gellerich FN
Labels:
Organism: Birds
Tissue;cell: Skeletal muscle
Preparation: Permeabilized tissue
Regulation: Substrate
HRR: Oxygraph-2k
