ArticleHistochemistry and cell biology2011
Potential sources of early-postnatal increase in myofibre number in pig skeletal muscle.
Article in Histochemistry and cell biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed.
- The effect of litter hierarchy and teat allocation on suckling piglets' growth.Archives animal breeding · 2025Article
- Integrative genetic and epigenetic control of skeletal muscle fiber traits in agricultural animals.Frontiers in genetics · 2025Review
- Insulin-like growth factor-1 infusion in preterm piglets does not affect growth parameters of skeletal muscle or tendon tissue.Experimental physiology · 2024Article
- Screening for Genes Related to Meat Production Traits in Duroc × Bama Xiang Crossbred Pigs by Whole Transcriptome Sequencing.Animals : an open access journal from MDPI · 2024Article
- Developmental dynamics of mitochondrial fission and fusion proteins in functionally divergent skeletal muscles of goat.Physiological reports · 2024Article
- Differential analysis of ubiquitin-proteomics in skeletal muscle of Duroc pigs and Tibetan fragrant pigs.Frontiers in veterinary science · 2024Article
- Comparative muscle transcriptome of Mali and Hampshire breeds of pigs: a preliminary study.Animal biotechnology · 2023Article
- Analysis of Early Growth of Piglets from Hyperprolific Sows Using Random Regression Coefficient.Animals : an open access journal from MDPI · 2023Article
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- O-GlcNAcylation is a gatekeeper of porcine myogenesis.Journal of animal science · 2022Article
- Effects of temperature on proliferation of myoblasts from donor piglets with different thermoregulatory maturities.BMC molecular and cell biology · 2021Article
- Article
- Satellite cells and their regulation in livestock.Journal of animal science · 2020Review
- Low birth weight influences the postnatal abundance and characteristics of satellite cell subpopulations in pigs.Scientific reports · 2020Article
- Regulation of Muscle Growth in Early Postnatal Life in a Swine Model.Annual review of animal biosciences · 2019Review
- High nutrient intake during the early postnatal period accelerates skeletal muscle fiber growth and maturity in intrauterine growth-restricted pigs.Genes & nutrition · 2018Article
- Molecular and functional heterogeneity of early postnatal porcine satellite cell populations is associated with bioenergetic profile.Scientific reports · 2017Article
- Porcine EEF1A1 and EEF1A2 genes: genomic structure, polymorphism, mapping and expression.Molecular biology reports · 2015Article
- Interactome mapping reveals important pathways in skeletal muscle development of pigs.International journal of molecular sciences · 2014Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In pigs, myogenesis is a biphasic phenomenon with the formation of primary and secondary fibres. Hyperplasia was reported to be accomplished around 90 days of gestation. However, some studies suggest a substantial increase in the total fibre number (TFN) from birth to weaning by counting fibre number in the muscle cross sections. The aim of this study was to establish in which way TFN increases after birth and whether this increase is imputable to new (tertiary) myofibres and/or fibre elongation. The semitendinosus muscle of 128 piglets was examined at days 1 (n = 63), 7 (n = 12), 21 (n = 12), and 28 (n = 41) of age. TFN was increased at days 7, 21 and 28 of age when compared with day 1 (P < 0.01). From day 1 to 28, TFN increased from 463 × 10(3) to 825 × 10(3). Microscopy of longitudinal and transversal serial sections revealed that at day 7 of age very small fibres expressing the embryonic myosin heavy chain (MyHC) isoform were apparent all over the muscle. In addition, intrafascicular terminations of normal-sized fibres expressed the embryonic MyHC isoform. These data suggest that the TFN in the pig muscle is not fixed at birth and its postnatal increase may be related to both elongation of existing muscle fibres and genesis of tertiary myofibres, mainly between birth and 3 weeks of age.
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