Terlouw E M Claudia, Picard Brigitte, Deiss Véronique, Berri Cécile, Hocquette Jean-François, Lebret Bénédicte, Lefèvre Florence, Hamill Ruth, Gagaoua Mohammed
UMR Herbivores, INRAE, VetAgro Sup, Theix, 63122 Saint-Genès Champanelle, France.
UMR Biologie des Oiseaux et Aviculture, INRAE, University de Tours, 37380 Nouzilly, France.
Foods. 2021 Jan 4;10(1):84. doi: 10.3390/foods10010084.
Despite increasingly detailed knowledge of the biochemical processes involved in the determination of meat quality traits, robust models, using biochemical characteristics of the muscle to predict future meat quality, lack. The neglecting of various aspects of the model paradigm may explain this. First, preslaughter stress has a major impact on meat quality and varies according to slaughter context and individuals. Yet, it is rarely taken into account in meat quality models. Second, phenotypic similarity does not imply similarity in the underlying biological causes, and several models may be needed to explain a given phenotype. Finally, the implications of the complexity of biological systems are discussed: a homeostatic equilibrium can be reached in countless ways, involving thousands of interacting processes and molecules at different levels of the organism, changing over time and differing between animals. Consequently, even a robust model may explain a significant part, but not all of the variability between individuals.
尽管对决定肉质性状的生化过程的了解越来越详细，但利用肌肉生化特性来预测未来肉质的可靠模型却很缺乏。对模型范式各方面的忽视可能解释了这一点。首先，宰前应激对肉质有重大影响，并且因屠宰环境和个体而异。然而，肉质模型中很少考虑这一点。其次，表型相似并不意味着潜在生物学原因相似，可能需要多个模型来解释给定的表型。最后，讨论了生物系统复杂性的影响：可以通过无数种方式达到稳态平衡，涉及生物体不同层次上数千个相互作用的过程和分子，这些过程和分子会随时间变化且在不同动物之间存在差异。因此，即使是一个强大的模型也可能解释个体间相当一部分但不是全部的变异性。
