Morphometrische Untersuchung am Musculus longissimus dorsi von Scheinerassen unterschiedlicher Konstitution<sup>1</sup>

Finger, K. W.; Dzapo, V.; Wassmuth, R.

doi:10.1111/j.1439-0388.1986.tb00067.x

J Animal Breeding Genetics

1986

DOI: 10.1111/j.1439-0388.1986.tb00067.x

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Morphometrische Untersuchung am Musculus longissimus dorsi von Scheinerassen unterschiedlicher Konstitution¹

K. W. Finger

V. Dzapo

R. Wassmuth

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Cited by 2 publications

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“…Differences are encountered in information on the incidence and importance of the socalled "giant fibres" in striated muscles (Todorov and Petrov 1969;Hraste et al 1980;Szentkuti et al 1981;Bader 1983;Finger et al 1986;Fazarinc etal.1991) and also on the longitudinal splitting of muscle fibres (Todorov and Petro v 1969;Petro v 1970;Schmalbruch 1976;N0stvold 1981;Uhrin and Kuli~kova 1985).…”

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confidence: 99%

Postnatal Morphological and Histochemical Type Differentiation of the Porcine Muscle Fibres

Kaman¹

1995

Acta Vet. Brno

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Histological and histochemical detection of myosin ATPase, SDH and glycogen activity were used to study seven topographically and functionally different muscles of 23 Duroc pigs aged 2-4 hours, 7 days, and I, 3 and 6 months. The aim of the study was to find out whether type differentiation of muscle fibres (MFs) is detennined genetically or whether it is variable, and if so, in what ways, to what extent, and what is its relationship with "load myopathies", and to help answer the question of the "giant fibre", MF splitting, and of suitability of individual types of differentiation histochemical methods.Our findings indicated that muscle fibres of neonates were fully morphologically aJ)d adequately histochemically differentiated, with MFII predominating. In addition to the basic MF I and II types, the myosin ATPase reaction helped us differentiate also the intermediary IIC type with its MS, SS and SM subtypes converging to type I; in some muscles we were able to demonstrate the IIA and lIB types differentiated to a different extent. In the first month of life, muscles were differentiated in: I) muscles with a predominance of MF II, anaerobic (m. longissimus dorsi, m. triceps brachii, m. gracilis and m. semimembranosus), metabolically equipped for "load myopathies"; 2) muscles with a high to dominant proportion (45·70%) of oxidative MF I (m. tibialis cranialis, m. trapezius, m. stemomastoideus). No marked further conversion was found at the age of 3 months, and at the age of 6 months only a minimum conversion occurred. Deep zones of muscles belonging to group 1 muscles showed a higher relative ratio of MF I than the surface ones. Change in the proportion of MF I:MF II took place by gradual conversion of intermediary MFs IIC of their subtypes MS ~ SS ~ SM in type I.Detection of SDH activity did not allow an objective type differentiation of MFs in piglets younger than I month. The glycogen content was not always in correlation with an adequate MF type. In glycolytic muscles, completely isolated MF lIB, of the "giant fibre" type, affected by dystrophic changes were identified. No longitudinally split MFs were demonstrated.

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Postnatal Morphological and Histochemical Type Differentiation of the Porcine Muscle Fibres

Kaman¹

1995

Acta Vet. Brno

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Simulation of giant fibre development in biopsy samples from pig longissimus muscle

et al. 2008

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Morphometrische Untersuchung am Musculus longissimus dorsi von Scheinerassen unterschiedlicher Konstitution¹

Cited by 2 publications

References 6 publications

Postnatal Morphological and Histochemical Type Differentiation of the Porcine Muscle Fibres

Postnatal Morphological and Histochemical Type Differentiation of the Porcine Muscle Fibres

Simulation of giant fibre development in biopsy samples from pig longissimus muscle

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Morphometrische Untersuchung am Musculus longissimus dorsi von Scheinerassen unterschiedlicher Konstitution1

Cited by 2 publications

References 6 publications

Postnatal Morphological and Histochemical Type Differentiation of the Porcine Muscle Fibres

Postnatal Morphological and Histochemical Type Differentiation of the Porcine Muscle Fibres

Simulation of giant fibre development in biopsy samples from pig longissimus muscle

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Product

Resources

About

Morphometrische Untersuchung am Musculus longissimus dorsi von Scheinerassen unterschiedlicher Konstitution¹