Moisture: Protein Ratio in broiler chicken breasts affected with muscle defects




Breast weight; Broilers; Moisture:Protein Ratio (MPR); White striping; Wooden breast.


The genetic evolution of broiler strains triggered gains in performance indexes and body changes. That said, there is a challenge for the poultry industries to comply with the legal standards of the Moisture:Protein Ratio (MPR) contents to stop fraud by inserting water into the meat. In this sense, it is known that muscle defects such as wooden breast and white striping influence the centesimal composition of the meat, identifying cuts with higher moisture and lower protein functionality. Another important factor in the MPR variation is the weight of the poultry, given that the smaller the carcass, the greater its absorption of water in the slaughter process. Therefore, the aim of this research was to evaluate the MPR and its association with the occurrence and severity of muscle defects, as well as the influence of broiler breast weight on these variables. A total of 240 samples of 42-day-old broiler breasts were collected, weighed, classified by their muscle defects severity, and evaluated for their centesimal composition of moisture and protein through means of near-infrared reflectance spectroscopy (NIRS). It was verified in the results that the mean of the MPR presented a significant difference (p<0.05) in the presence of the wooden breast. Nonetheless, breasts affected by white striping did not present differences in MPR. In both defects, MPR was influenced by breast weight. Therefore, changes in body tissue deposition of modern strains should be considered to ensure that legal standards are not obsolete, being effective in controlling fraud.


ABPA – Associação Brasileira de Proteína Animal. (2021). Relatório Anual 2021.

Bauermeister, L. J., A. U. Morey, E. T. Moran, M. Singh, C. M. Owens, & S. R. McKee. (2009). Occurrence of white striping in chicken breast fillets in relation to broiler size. Poulry Science. 88(Suppl. 1):33 (Abstr.).

Berri, C., Le Bihan-Duval, E., Debut, M., Sante-Lhoutellier, V., Baeza, E., Gigaud, V., Jego, Y. & Duclos, M. J. (2007). Consequence of muscle hypertrophy on characteristics of pectoralis major muscle and breast meat quality of broiler chickens. Journal of Animal Science, 85(8), 2005-2011.

Brasil. Ministério da Agricultura Pecuária e Abastecimento. (1998). Portaria n° 210, de vinte e seis de novembro de 1998, que aprova o Regulamento Técnico de Inspeção Tecnológica e HigiênicoSanitária de Carnes de Aves e estabelece as metodologias de análises e seus parâmetros, apresentando como atividade básica do Serviço de Inspeção Federal (SIF).

Brasil. Ministério da Agricultura Pecuária e Abastecimento. (2010). Instrução Normativa n° 32, de vinte e seis de julho de 2010, que Estabelece os parâmetros para avaliação do Teor Total de Água Contida nos Cortes de Frangos, resfriados e congelados.

Dias, V. H. C., Kovacs, T. A. S., Herrera, R. A., dos Santos, T. G., dos Santos, J. M. G., Andreazzi, M. A. (2016). Relação Umidade:Proteína nas carcaças de frango de corte. In: VIII Mostra Interna de Trabalhos de Iniciação Científica. I Mostra Interna de Trabalhos de Iniciação Tecnológica e Inovação. 2016, Maringá, PR. Anais... Maringá: UniCesumar, 2016.

European Comission. (2012).

Figueiredo, E. A. P., Krabbe, E. L., Avila, V. S. De., Klein, C. H., Lopes, L. Dos S. & Kawski, V. L. (2016). Relação umidade: proteína em genótipos de frangos de corte. In: Conferência Apinco de Ciência e Tecnologia Avícolas, 2016, Campinas, SP. Anais... Campinas: FACTA, 2016.

FOSS. FoodScan™ for meat. User Manual. (2012). FOSS Analytical A/S, Hillerod, Denmark.

Kuttappan, V. A.; Brewer, V. B.; Apple, J. K.; Waldroup, P. W. & Owens, C. M. (2012a). Influence of growth rate on the occurrence of white striping in broiler breast fillets. Poultry Science, 91(10), 2677-2685.

Kuttappan, V. A.; Lee, Y. S.; Erf, G. F.; Meullenet, J.-F. C.; Mckee, S. R. & Owens, C. M. (2012b). Consumer acceptance of visual appearance of broiler breast meat with varying degrees of white striping. Poultry Science, 91(5), 1240-1247.

Kuttappan, V. A., Brewer, V. B., Mauromoustakos, A., Mckee, S. R., Emmert, J. L., Meullenet J. F. & Owens, C. M. (2013). Estimation of factors associated with the occurrence of WS in broiler breast fillets. Poultry Science, 92, 811–819.

Mudalal, S., Babini, E., Cavani, C., & Petracci, M. (2014). Quantity and functionality of protein fractions in chicken breast fillets affected by white striping. Poultry Science, 93(8), 2108–2116.

Obdam, J. (2005). Resfriamento de carcaça de aves em ar ou água – implicações microbiológicas e de qualidade da carne.

Pardi, M. C., dos Santos, I. F., de Souza, E. R. & Pardi, H. S. (2006). Ciência, higiene e tecnologia da carne: ciência e higiene da carne. Tecnologia da sua obtenção e transformação. 2. ed., rev. ampl. Goiânia: UFG, 2006, 1, 623 p.

Sant’anna. V. Análise dos fatores que afetam a temperatura e absorção de água em carcaças de frango em chiller industrial. (2008). 54 f. Monografia (Graduação em Tecnologia de Alimentos) – Universidade Federal do Rio Grande do Sul, Porto Alegre, 2008.

SAS. (2012). Statistical Analysis System. User's Guide: Statistical. Version 9.1th ed. SAS. Inst. Inc. Cary. N.C. USA.

Sihvo, H. K.; Immonen, K.; & Puolanne, E. (2014). Myodegeneration With Fibrosis and Regeneration in the Pectoralis Major Muscle of Broilers. Veterinary Pathology, 51(3), 619-623.

Soglia, F., Laghi, L., Cananico, L., Cavani, C. & Petracci, M. (2016). Functional property issues in broiler breast meat related to emerging. Food Research International, 89(3), 1071-1076.

Velleman, S. G., & Clark, D. L. (2015). Histopathologic and Myogenic Gene Expression Changes Associated with Wooden Breast in Broiler Breast Muscles. Avian Diseases, 59(3), 410–418.

Yalçin, S., Nizamlioglu, M. & Gürbüz, Ü. (2001). Fecal coliform contamination of beef carcasses during the slaughtering process. Journal of Food Safety, Malden, 21 (4), 225-231.



How to Cite

SIMONETTI, T.; LANTMANN, T. L.; KINDLEIN, L.; BERTON, C. P.; TARTARI, P. N. Moisture: Protein Ratio in broiler chicken breasts affected with muscle defects. Research, Society and Development, [S. l.], v. 11, n. 2, p. e31711225789, 2022. DOI: 10.33448/rsd-v11i2.25789. Disponível em: Acesso em: 1 mar. 2024.



Agrarian and Biological Sciences