Opalka 2004 Br Poult Sci: Difference between revisions
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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. | ||
|mipnetlab=DE_Goettingen_Wicke M, DE_Magdeburg_Gellerich FN | |mipnetlab=DE_Goettingen_Wicke M, DE_Magdeburg_Gellerich FN | ||
|discipline=Mitochondrial Physiology, Biomedicine | |discipline=Mitochondrial Physiology, Biomedicine | ||
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|instruments=Oxygraph-2k | |instruments=Oxygraph-2k | ||
|organism=Other Mammal | |organism=Other Mammal | ||
|tissues=Skeletal | |tissues=Skeletal muscle | ||
|topics=Substrate; Glucose; TCA Cycle | |topics=Substrate; Glucose; TCA Cycle | ||
|additional=turkey | |additional=turkey | ||
|discipline=Mitochondrial Physiology, Biomedicine | |discipline=Mitochondrial Physiology, Biomedicine | ||
}} | }} | ||
Revision as of 03:55, 5 April 2012
| 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: 367-379. |
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.
• O2k-Network Lab: DE_Goettingen_Wicke M, DE_Magdeburg_Gellerich FN
Labels:
Organism: Other Mammal"Other Mammal" is not in the list (Human, Pig, Mouse, Rat, Guinea pig, Bovines, Horse, Dog, Rabbit, Cat, ...) of allowed values for the "Mammal and model" property.
Tissue;cell: Skeletal muscle
Regulation: Substrate; Glucose; TCA Cycle"Substrate; Glucose; TCA Cycle" is not in the list (Aerobic glycolysis, ADP, ATP, ATP production, AMP, Calcium, Coupling efficiency;uncoupling, Cyt c, Flux control, Inhibitor, ...) of allowed values for the "Respiration and regulation" property.
HRR: Oxygraph-2k
turkey
