Normal and regenerating skeletal muscle fibres in Pietrain pigs

Antemortem material was obtained from Pietrain pigs during killing by anaesthetics and postmortem samples were obtained from the slaughterhouse. The light and electron microscopic antemortem structure of red and white skeletal muscle fibres is normal. Evidence of in vivo degeneration and subsequent...

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Bibliographic Details
Published inJournal of comparative pathology Vol. 80; no. 1; pp. 137,IN11,143 - 142,IN15,143
Main Author Muir, A.R.
Format Journal Article
LanguageEnglish
Published England Elsevier Ltd 1970
Subjects
Animals
Microscopy, Electron
Muscle Proteins - analysis
Muscles - cytology
Muscles - metabolism
Myofibrils
Postmortem Changes
Protein Denaturation
Regeneration
Swine
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Summary:Antemortem material was obtained from Pietrain pigs during killing by anaesthetics and postmortem samples were obtained from the slaughterhouse. The light and electron microscopic antemortem structure of red and white skeletal muscle fibres is normal. Evidence of in vivo degeneration and subsequent regeneration is presented. After fixation, within 15 minutes of stunning, the myofibrillar and sarcoplasmic proteins in most of the fibres have coagulated. At present no connection between these phenomena has been established. It is clear that with this breed of pigs information about degenerative and regenerative processes in life cannot be obtained from a study of samples taken some time after death.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0021-9975
1532-3129
DOI:10.1016/0021-9975(70)90040-X