Muscle fibre type composition of a number of limb muscles in different types of horse.
Abstract: Skeletal muscle of the equine was differentiated into three fibre types according to myosin ATPase (pH 9.4) and succinic dehydrogenase activity. The percentage of these types was determined in the musculus deltoideus, m triceps brachii caput longum, m gluteus medius, m semitendinosis, m biceps femoris and m vastus lateralis of the thoroughbred, Shetland pony, pony, heavy hunter and donkey. In addition the m gluteus medius was examined in the arab and American racing quarterhorse. High myosin ATPase activity fibres varied from a mean of 93.2 per cent in the m gluteus medius of the quarterhorse to 58.2 per cent in the m vastus lateralis of the donkey. In the m gluteus medius it was found that the percentage of high mycosin ATPase (pH 9.4) fibres varied significantly among breeds and these differences were related to the sprinting speed of the breed.
Publication Date: 1980-03-01 PubMed ID: 6447905
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- Comparative Study
- Journal Article
Summary
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This research article investigates the variants in the composition of different fibre types in the muscles of various equine breeds, and relates the findings to the breeds’ sprinting speeds.
Objective of the Research
The primary objective of the study is to differentiate horse skeletal muscle into three fiber types based on the myosin ATPase (pH 9.4) and succinic dehydrogenase activity, and then determine the percentage of these types in different muscles of different breeds of horses. The goal is to determine if these differences are related to the sprinting speed of the breed.
Types of Horses and Muscles Examined
- The study examined several breed types including the thoroughbred, Shetland pony, pony, heavy hunter, donkey, Arab, and American racing quarterhorse.
- Various muscles were tested including the musculus deltoideus, m triceps brachii caput longum, m gluteus medius, m semitendinosis, m biceps femoris, and m vastus lateralis.
Method of Differentiation
- The researchers differentiated the horse muscles into three fiber types based on their myosin ATPase (pH 9.4) and succinic dehydrogenase activities.
- Myosin ATPase is an enzyme that helps with muscle contraction, making it an essential component of muscle fibers. Succinic dehydrogenase is involved in the process of respiration in the cells, hence its activity also indicates the type of fiber.
Findings in Muscle Fibre Composition
- The research found that high myosin ATPase activity fibers varied in different breeds and muscles. The highest mean percentage, 93.2%, was found in the m gluteus medius of the quarterhorse, while the lowest, 58.2%, was found in the m vastus lateralis of the donkey.
- The muscle m gluteus medius showed significant variation in the percentage of high myosin ATPase (pH 9.4) fibers among different breeds.
Relation to Sprinting Speed
- The analysis also revealed a correlation between the percentage of high myosin ATPase fibers and the sprinting speed of the breed. The conclusion suggests that the type of muscle fibers might greatly impact the speed capabilities of different horse breeds.
Cite This Article
APA
Snow DH, Guy PS.
(1980).
Muscle fibre type composition of a number of limb muscles in different types of horse.
Res Vet Sci, 28(2), 137-144.
Publication
Researcher Affiliations
MeSH Terms
- Adenosine Triphosphatases / metabolism
- Animals
- Breeding
- Histocytochemistry
- Horses / metabolism
- Muscles / enzymology
- Succinate Dehydrogenase / metabolism
Citations
This article has been cited 17 times.- Maśko M, Domino M, Jasiński T, Witkowska-Piłaszewicz O. The Physical Activity-Dependent Hematological and Biochemical Changes in School Horses in Comparison to Blood Profiles in Endurance and Race Horses.. Animals (Basel) 2021 Apr 14;11(4).
- Latham CM, Dickson EC, Owen RN, Larson CK, White-Springer SH. Complexed trace mineral supplementation alters antioxidant activities and expression in response to trailer stress in yearling horses in training.. Sci Rep 2021 Apr 1;11(1):7352.
- Witkowska-Piłaszewicz O, Cywińska A, Michlik-Połczyńska K, Czopowicz M, Strzelec K, Biazik A, Parzeniecka-Jaworska M, Crisman M, Witkowski L. Variations in haematological and biochemical parameters in healthy ponies.. BMC Vet Res 2021 Jan 19;17(1):38.
- Littiere TO, Castro GHF, Rodriguez MDPR, Bonafé CM, Magalhães AFB, Faleiros RR, Vieira JIG, Santos CG, Verardo LL. Identification and Functional Annotation of Genes Related to Horses' Performance: From GWAS to Post-GWAS.. Animals (Basel) 2020 Jul 10;10(7).
- MacNicol JL, Lindinger MI, Pearson W. A time-course evaluation of inflammatory and oxidative markers following high-intensity exercise in horses: a pilot study.. J Appl Physiol (1985) 2018 Apr 1;124(4):860-865.
- Ravara B, Gobbo V, Carraro U, Gelbmann L, Pribyl J, Schils S. Functional Electrical Stimulation as a Safe and Effective Treatment for Equine Epaxial Muscle Spasms: Clinical Evaluations and Histochemical Morphometry of Mitochondria in Muscle Biopsies.. Eur J Transl Myol 2015 Mar 11;25(2):4910.
- Hyytiäinen HK, Mykkänen AK, Hielm-Björkman AK, Stubbs NC, McGowan CM. Muscle fibre type distribution of the thoracolumbar and hindlimb regions of horses: relating fibre type and functional role.. Acta Vet Scand 2014 Jan 27;56(1):8.
- Wagner AL, Urschel KL, Lefta M, Esser KA. Effect of gluteus medius muscle sample collection depth on postprandial mammalian target of rapamycin signaling in mature Thoroughbred mares.. Am J Vet Res 2013 Jun;74(6):910-7.
- Baltzer WI, Firshman AM, Stang B, Warnock JJ, Gorman E, McKenzie EC. The effect of agility exercise on eicosanoid excretion, oxidant status, and plasma lactate in dogs.. BMC Vet Res 2012 Dec 28;8:249.
- Graziotti GH, Chamizo VE, Ríos C, Acevedo LM, Rodríguez-Menéndez JM, Victorica C, Rivero JL. Adaptive functional specialisation of architectural design and fibre type characteristics in agonist shoulder flexor muscles of the llama, Lama glama.. J Anat 2012 Aug;221(2):151-63.
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