ABSTRACT. The study aimed to determine the fatty acid profile, omegas and lipid quality indeces in commercial cuts of pirarucu (Arapaima gigas) of the slaughter class 11.1 to 14.0 kg. Sample collections were carried out in two fish processing industries located in Rondônia state, Brazil. The experimental design was completely randomized, with processing performed in triplicate. Data were submitted to ANOVA to assess differences between commercial cuts in chemical compositions. If ANOVA appeared statistically significant (α=0.05), the averages were compared by Tukey's test. In the composition of fatty acids, there was a difference (p <0.05) between cuts. Commercial cuts that expressed the highest percentages of SFAs tail fillet 51.2%, of MUFAs fillet mignon 39.8% and of PUFAs deboned cut 20.7%. The indeces prescribed for lipid quality, ∑PUFAs/∑SFAs, ∑PUFAs (n-6/∑n-3), AI, TI and HH, indicate that commercial cuts have lipid quality. Deboned is the cut with the highest PUFA fatty acid content, with the highest values of Omega 3, 6, 7 and n-9 being also expressed. Nutritional information is important for the processes of conservation and processing, development of new products on the market, as well as guiding the form of preparation, thus providing commercial security for different market niches. ABSTRACT profile Arapaima gigas 111 11 1 11. 140 14 0 14. kg state Brazil randomized triplicate compositions α=0.05, α005 α α=0.05 , 05 (α=0.05) Tukeys Tukey s test acids p <0.05 005 512 51 2 51.2% 398 39 8 39.8 207 20 20.7% PUFAsSFAs ∑PUFAs/∑SFAs n6/∑n3, n6n3 nn n 6/∑n 3 6 (n-6/∑n-3) AI HH content n9 9 n- preparation niches α00 α=0.0 (α=0.05 <0.0 00 5 51.2 39. 20.7 n6 n3 n6/∑n3 n6n 6n (n-6/∑n-3 α0 α=0. (α=0.0 <0. 51. 20. n6/∑n (n-6/∑n- α=0 (α=0. <0 (n-6/∑n α= (α=0 < (α= (α

RESUMEN El presente estudio tuvo como objetivo evaluar la calidad microbiológica de las muestras de agua de la base de piscicultura Carlos Eduardo Matiazze, en el municipio de Presidente Médici, RO, Brasil, mediante la cuantificación de coliformes totales (CT) y termotolerantes (CTT). Los coliformes se cuantificaron utilizando el método de Número más probable (NMP)/100 mL. Hubo una gran variabilidad en los resultados, tanto para CT como para CTT, durante todo el año. Los resultados variaron de 300 a 1100000 y 300 a 93000 NMP/100 mL para CT y CTT, respectivamente. Las concentraciones más altas en NMP/100 mL para CT y CTT ocurrieron en el punto 6 y en la estación lluviosa, este punto se encuentra aguas abajo, recibiendo toda el agua de los demás debido al flujo de la escorrentía. Se encontró que el 47.7% de las muestras evaluadas para CTT presentaron valores de NMP/100 mL por encima del límite máximo establecido (1000 NMP/100 mL) por la legislación vigente, Resolución CONAMA, n2. 357/2005. Por lo tanto, el sistema evaluado se considera inapropiado para el desarrollo de actividades dirigidas a la acuicultura.

ABSTRACT This study aimed to evaluate the microbiological quality of water samples from the fish farming base Carlos Eduardo Matiazze, in the municipality of Presidente Médici, RO, Brazil, through the quantification of total coliforms (CT) and thermotolerants (CTT). Coliforms were quantified using the Most Likely Number (NMP)/100mL method. There was great variability in the results, for both CT and CTT, throughout the year. The results ranged from 300 to 1100000 and 300 to 93000 NMP/100 mL for CT and CTT, respectively. The highest concentrations in NMP/100 mL for CT and CTT occurred at point 6 and in the rainy season. This point is located downstream, receiving all the water from the others due to the flow of runoff. It was found that 47.7% of the samples evaluated for CTT presented values of NMP/100 mL greater than the maximum limit established (1000 NMP/100 mL) by the current legislation, CONAMA Resolution, n°. 357/2005. Thus, the evaluated system is considered inappropriate for the development of aquaculture activities.

RESUMO O presente estudo teve como objetivo avaliar, a qualidade microbiológica de amostras de água da base de piscicultura Carlos Eduardo Matiazze, no município de Presidente Médici, RO, Brasil, através da quantificação de coliformes totais (CT) e termotolerantes (CTT). Os coliformes foram quantificados através do método do Número Mais Provável (NMP)/100mL. Houve grande variabilidade nos resultados, tanto de CT quanto de CTT, ao longo do ano. Os resultados variaram de 300 a 1100000 e 300 a 93000 NMP/100 mL para CT e CTT, respectivamente. As maiores concentrações em NMP/100 mL para CT e CTT ocorreram no ponto 6 e no período chuvoso. Este ponto está localizado a jusante, recebendo toda água dos demais devido ao fluxo de escoamento. Constatou-se que 47,7% das amostras avaliadas para CTT apresentaram valores de NMP/100 mL superiores ao limite máximo estabelecido (1000 NMP/100 mL) pela legislação vigente, Resolução CONAMA, n2. 357/2005. Desta forma, o sistema avaliado é considerado impróprio para o desenvolvimento de atividades destinadas à aquicultura.