Characterization of chicken muscle disorders through metabolomics, pathway analysis, and water relaxometry: a pilot study

Autor(es):Mostrar menos -

Consolo, Nara R. B. ^{[1, 2]} ; Samuelsson, Linda M. ^[2] ; Barbosa, Luis C. G. S. ^[3] ; Monaretto, Tatiana ^[4] ; Moraes, Tiago B. ^[5] ; Buarque, Vicente L. M. ^[1] ; Higuera-Padilla, Angel R. ^[6] ; Colnago, Luiz A. ^[6] ; Silva, Saulo L. ^[1] ; Reis, Marlon M. ^[2] ; Fonseca, Andre C. ^[3] ; Araujo, Cristiane S. da S. ^[3] ; Leite, Bruna G. de S. ^[1] ; Roque, Fabricia A. ^[1] ; Araujo, Lucio F. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Fac Anim Sci & Food Engn, BR-13635900 Pirassununga, SP - Brazil

^[2] AgResearch, Grasslands Res Ctr, Tennent Dr, 11 Dairy Farm Rd, Palmerston North 4442 - New Zealand

^[3] Univ Sao Paulo, Sch Vet Med & Anim Sci, BR-13635900 Pirassununga, SP - Brazil

^[4] Univ Sao Paulo, Sao Carlos Inst Chem, BR-13566590 Sao Carlos, SP - Brazil

^[5] Univ Fed Minas Gerais, Inst Exact Sci, Dept Chem, BR-31270901 Belo Horizonte, MG - Brazil

^[6] Embrapa Instrumentacao, BR-13560970 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: POULTRY SCIENCE; v. 99, n. 11, p. 6247-6257, NOV 2020.
• Citações Web of Science: 0

Resumo

Metabolite profiles of chicken breast extracts and water mobility in breasts were studied using proton nuclear magnetic resonance (H-1-NMR) spectroscopy and time-domain NMR (TD-NMR) relaxometry, respectively, using normal breast (NB), and wooden breast (WB) and white striping (WS) myopathies in broilers. One thousand eight hundred sixty broilers were raised to commercial standards, receiving the same diets that were formulated as per the different growth stages. At 49 D of age, 200 animals were slaughtered following routine commercial procedures, and at 4 h postmortem, the whole breast (pectoralis major muscle) was removed and visually inspected by an experienced meat inspector who selected NB(without myopathies) and samples with the presence of WS and WB myopathies. Fifteen breasts (5 each of NB, WS, and WB) were analyzed through TD-NMR relaxometry, and samples of approximately 20 g were taken from each breast and frozen at 280 degrees C for metabolite profiling through H-1-NMR spectroscopy. Multivariate statistical analysis was used to evaluate the effect on water relaxometry and metabolite profile in accordance with the presence and type of myopathy in the breast. 1H-NMR data showed that the metabolite profiles in WS and WB breasts were different from each other and from NB. This pilot study shows that myopathies appear to be related to hypoxia, connective tissue deposition, lower mitochondrial function, and greater oxidative stress compared with NB. The longitudinal and transverse relaxation time of the breasts determined by TD-NMR relaxometry was shorter for NB than that for WS and WB, indicating greater water mobility in breasts affected by myopathies. H-1-NMR spectroscopy can be used to differentiate the metabolism of WS, WB, and NB, and TD-NMR has the potential to be a fast, simple, and noninvasive method to distinguish NB from WB and WS. As a practical application, the metabolomic profile as per the occurrence of breast myopathies may be used for a better understanding of these issues, which opens a gap to mitigate the incidence and severity of WS and WB. In addition, the present study brings an opportunity for the development of a new and objective tool to classify the incidence of breast myopathies through TD-NMR relaxometry. (AU)

• Processo FAPESP: 18/09800-3 - Caracterização metabolômica da carne de ovinos e bovinos
• Beneficiário: Nara Regina Brandão Cônsolo
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado
• Processo FAPESP: 19/13656-8 - Desenvolvimento e aplicações da ressonância magnética nuclear em produtos e processos de interesse agropecuário
• Beneficiário: Luiz Alberto Colnago
• Modalidade de apoio: Auxílio à Pesquisa - Regular