Fish size correlates to size and morphology of intermuscular bones in tambaqui Colossoma macropomum as shown by dissection and X-ray imaging methods.

• Autor(a) principal: OLIVEIRA, N. F. A.
• Data de Publicação: 2023
• Outros Autores: TORATI, L. S., BORIN-CARVALHO, L. A., LIMA, L. K. F. de, PUVANENDRAN, V., DEMICIANO, T. H., SILVA, J. J. T. da, BARROSO, A. da S., VARELA, E. S.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
• Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1152864; https://doi.org/10.3390/fishes8040180
• topic: Intermuscular bones; Peixe; Tambaqui; Colossoma Macropomum; Raio X; Osso; Tamanho; Morfologia Animal; Fish; Bones

One of the main issues in the processing sector of the tambaqui Colossoma macropomum is the removal and/or fragmentation of intermuscular bones (IBs), which negatively impacts its production chain. In this sense, we quantitatively examined the IB variation in farmed tambaqui (n = 127) by comparing the direct anatomical dissection with the high-resolution X-ray imaging method. The number of IBs from the anatomical dissection on the left side of the fish (27.3 ± 5.70 bones) was comparable to that of X-ray analysis (26.9 ± 6.03 bones) (p > 0.05). In addition, 76% of deviation in IB number between the two studied methods was one to three, indicating both methods are equally efficient for identifying and quantifying IBs. We found a strong positive correlation (R = 0.8, p < 0.001) between the X-ray and the dissection methods. Our predictive models indicated that more than 50% of variation in IB length can be explained by growth parameters. Our results demonstrated that the X-ray method can provide accurate phenotypic data (in vivo) for IB counting and length measurements by extrapolating from the standard length, body weight and trunk over axis area of tambaqui.