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Home / Equine Research Bank / Res Vet Sci / Skeletal muscle histochemistry in male and female Andalusian...
Research in veterinary science1993; 54(2); 160-169; doi: 10.1016/0034-5288(93)90051-g

Skeletal muscle histochemistry in male and female Andalusian and Arabian horses of different ages.

Abstract: Muscle biopsies were taken from the middle gluteal muscle of 143 untrained horses (83 Andalusians [AN] and 60 Arabians [AR]) ranging from 10 days to 24 years old. The horses were separated according to breed and sex and allotted to five age groups: A, 0 to three months; B, yearlings; C, two to three years; D, five to 10 years; and E, 11 to 24 years. There was an increase in the percentage of type I fibres (about 100 per cent) as well as a decrease in the percentage of type IIB fibres (AN, 50 per cent; AR, 40 per cent) over the five age groups. The percentage of type IIA fibres rose significantly over the first two or three age groups. The overall decrease in the subgroup IIB fibres with age was proportionally greater for IIB oxidative fibres (AN, 72 per cent; AR, 68 per cent) than for IIB non-oxidative fibres (AN, 5 per cent; AR, 34 per cent). The mean cross-sectional area of all three fibre types increased significantly with age. In any given age group, the mean relative cross-sectional area occupied by IIA fibres in the biopsy specimens was significantly greater in stallions than in mares, at the expense of IIB fibres.
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Publication Date: 1993-03-01 PubMed ID: 8460254DOI: 10.1016/0034-5288(93)90051-gGoogle Scholar: Lookup
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  • Comparative Study
  • Journal Article

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The research conducted explores how muscle fiber composition and area evolve in Andalusian and Arabian horses of differing ages and sexes, highlighting the progression from type IIB to type I and IIA fibers as the horses grew older.

About the study

  • The researchers conducted muscle biopsies on 143 untrained horses, both Andalusian and Arabian breeds, ranging from 10 days to 24 years old.
  • The gathered biopsy samples came from the middle gluteal muscle of these horses.
  • The horses were grouped according to their breed, sex, and within five age brackets: A (0 to three months), B (yearlings), C (two to three years), D (five to 10 years), and E (11 to 24 years).

Findings on Muscle Fibers

  • As a general trend observed through the five age groups, researchers noted a significant rise in the percentage of the type I muscle fibers, also revealing a marked drop in the percentage of type IIB fibers.
  • This gradual increase in the proportion of type I fibers saw an about 100% increase over the course of time.
  • Simultaneously, the percentage of type IIA muscle fibers also increased notably but only during the first two or three age clusters.
  • The reduction in type IIB fibers was proportionally more significant in IIB oxidative fibers than in IIB non-oxidative fibers.
  • Overall, the cross-sectional area for all three types of muscle fibers – type I, IIA, and IIB – significantly grew as the horses aged.

Findings on Sex Differences

  • The relative cross-sectional area of the type IIA fibers in any of the age groups was found to be significantly larger in stallions than in mares.
  • This increase was found to be at the expense of type IIB fibers, suggesting a higher conversion rate of type IIB fibers to type IIA in stallions than in mares.

In summary, this research provides valuable insights into the muscle structure and its development in horses of different breeds, ages, and sexes. This could have significant implications on the training and injury prevention protocols for these animals.

Cite This Article

APA
Rivero JL, Galisteo AM, Agüera E, Miró F. (1993). Skeletal muscle histochemistry in male and female Andalusian and Arabian horses of different ages. Res Vet Sci, 54(2), 160-169. https://doi.org/10.1016/0034-5288(93)90051-g

Publication

Research in veterinary science
ISSN: 0034-5288
NlmUniqueID: 0401300
Country: England
Language: English
Volume: 54
Issue: 2
Pages: 160-169

Researcher Affiliations

Rivero, J L
  • Department of Comparative Anatomy and Pathological Anatomy, Faculty of Veterinary Sciences, University of Córdoba.
Galisteo, A M
    Agüera, E
      Miró, F

        MeSH Terms

        • Aging / metabolism
        • Animals
        • Female
        • Histocytochemistry
        • Horses / metabolism
        • Image Processing, Computer-Assisted
        • Male
        • Muscles / cytology
        • Muscles / metabolism
        • NADPH-Ferrihemoprotein Reductase
        • Physical Endurance

        Citations

        This article has been cited 6 times.
        1. Mota-Rojas D, Napolitano F, Strappini A, Orihuela A, Martínez-Burnes J, Hernández-Ávalos I, Mora-Medina P, Velarde A. Quality of Death in Fighting Bulls during Bullfights: Neurobiology and Physiological Responses.. Animals (Basel) 2021 Sep 27;11(10).
          doi: 10.3390/ani11102820pubmed: 34679841google scholar: lookup
        2. Dietrich J, Handschuh S, Steidl R, Böhler A, Forstenpointner G, Egerbacher M, Peham C, Schöpper H. Muscle Fibre Architecture of Thoracic and Lumbar Longissimus Dorsi Muscle in the Horse.. Animals (Basel) 2021 Mar 23;11(3).
          doi: 10.3390/ani11030915pubmed: 33806991google scholar: lookup
        3. Li C, White SH, Warren LK, Wohlgemuth SE. Effects of aging on mitochondrial function in skeletal muscle of American American Quarter Horses.. J Appl Physiol (1985) 2016 Jul 1;121(1):299-311.
          doi: 10.1152/japplphysiol.01077.2015pubmed: 27283918google scholar: lookup
        4. McGivney BA, McGettigan PA, Browne JA, Evans AC, Fonseca RG, Loftus BJ, Lohan A, MacHugh DE, Murphy BA, Katz LM, Hill EW. Characterization of the equine skeletal muscle transcriptome identifies novel functional responses to exercise training.. BMC Genomics 2010 Jun 23;11:398.
          doi: 10.1186/1471-2164-11-398pubmed: 20573200google scholar: lookup
        5. Hindle AG, Lawler JM, Campbell KL, Horning M. Muscle senescence in short-lived wild mammals, the soricine shrews Blarina brevicauda and Sorex palustris.. J Exp Zool A Ecol Genet Physiol 2009 Jun 1;311(5):358-67.
          doi: 10.1002/jez.534pubmed: 19296507google scholar: lookup
        6. Linnane L, Serrano AL, Rivero JL. Distribution of fast myosin heavy chain-based muscle fibres in the gluteus medius of untrained horses: mismatch between antigenic and ATPase determinants.. J Anat 1999 Apr;194 ( Pt 3)(Pt 3):363-72.
          doi: 10.1046/j.1469-7580.1999.19430363.xpubmed: 10386774google scholar: lookup
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