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Related Concept Videos

Changes in the Appendicular Skeleton with Age01:09

Changes in the Appendicular Skeleton with Age

The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...

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Post-mortem pH decline in different ostrich muscles.

J Sales1, F D Mellett

  • 1Department of Animal Sciences, University of Stellenbosch, Stellenbosch 7600, South Africa.

Meat Science
|November 9, 2011
PubMed
Summary
This summary is machine-generated.

Ostrich muscle pH decline post-mortem was studied. Some muscles showed normal pH drop, while ambiens and iliofibularis muscles exhibited rapid pH decrease followed by an increase.

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Area of Science:

  • Animal Science
  • Biochemistry
  • Food Science

Background:

  • Post-mortem glycolysis is a critical factor influencing meat quality.
  • Understanding muscle pH changes is essential for predicting meat characteristics.

Purpose of the Study:

  • To investigate and characterize post-mortem glycolysis in various ostrich muscles.
  • To identify muscles exhibiting atypical pH decline patterns.

Main Methods:

  • Measurement of muscle pH decline over time in several ostrich muscles post-mortem.
  • Comparative analysis of pH patterns across different muscle types.

Main Results:

  • Ostrich muscles like gastrocnemius pars interna, femorotibialis medius, iliotibialis lateralis, and iliofemoralis displayed a typical post-mortem pH decline.
  • The ambiens and iliofibularis muscles showed an unusual pattern: a rapid pH decrease for 2 hours, followed by a pH increase.

Conclusions:

  • Ostrich muscles exhibit varied post-mortem glycolysis rates and patterns.
  • The ambiens and iliofibularis muscles present unique biochemical properties affecting post-mortem pH dynamics.