ÍNDICE EXPLORATÓRIO DE RIGOR MORTIS EM TILÁPIA-DO-NILO E BAGRE-AFRICANO
DOI:
https://doi.org/10.18817/repesca.v17i1.4688Keywords:
Oreochromis niloticus, Clarias gariepinus, queda caudal, abate de peixes, bem-estar animal na aquicultura, qualidade pós-abateAbstract
This study describes a standardized protocol for monitoring the rigor index (RI) and applies it exploratorily to two single-species experimental sessions, one with Nile tilapia (n = 4) and another with African catfish (n = 5); because species, batch, day and session were not independently replicated, the between-session contrast reported here does not isolate a species effect. After spinal cord section, fish were kept at room temperature without refrigeration, and caudal distance was measured every 20 min for 520 analytical min. Area under the curve (AUC) was the primary outcome, and between-session comparisons were exploratory. AUC was 386.98 ± 67.76 %·h in the tilapia session and 106.20 ± 89.07 %·h in the catfish session (difference 280.78 %·h; 95% CI: 184.52–363.91; p = 0.0159). The observed pattern was consistent with the exploratory hypothesis of a greater integrated rigor response in the tilapia session and greater individual heterogeneity in the catfish session. Because species, batch, day and session were not independently replicated, the contrast does not represent an isolated species effect.
References
ADOGA, I. J., JOSEPH, E., & SAMUEL, E. F. (2010). Studies on the post-mortem changes in African catfish (Clarias anguillaris) during ice-storage. New York Science Journal, 3(6), 96–101.
ALMEIDA, N. M., BATISTA, G. M., KODAIRA, M., VAL, L. A., & LESSI, E. (2005). Determinação do índice de rigor-mortis e sua relação com a degradação dos nucleotídeos em tambaqui (Colossoma macropomum), de piscicultura e conservados em gelo. Ciência Rural, 35(3), 698–704. https://doi.org/10.1590/S0103-84782005000300034
BITO, M., YAMADA, K., MIKUMO, Y., & AMANO, K. (1983). Studies on rigor mortis of fish: I. Difference in the mode of rigor mortis among some varieties of fish by modified Cutting's method. Bulletin of the Tokai Regional Fisheries Research Laboratory, 109, 89–96.
BRIJS, J., SUNDELL, E., HJELMSTEDT, P., BERG, C., SENČIĆ, I., SANDBLOM, E., AXELSSON, M., LINES, J., BOUWSEMA, J., ELLIS, M., SAXER, A., & GRÄNS, A. (2021). Humane slaughter of African sharptooth catfish (Clarias gariepinus): Effects of various stunning methods on brain function. Aquaculture, 531, 735887. https://doi.org/10.1016/j.aquaculture.2020.735887
CAI, J., LI, X., & ZHOU, X. (2025). Top 10 species groups in global aquaculture 2023. World Aquaculture Performance Indicators (WAPI), Food and Agriculture Organization of the United Nations. https://openknowledge.fao.org/handle/20.500.14283/cd5734en
CASTILLO-YÁÑEZ, F. J., JIMÉNEZ-RUÍZ, E. I., CANIZALES-RODRÍGUEZ, D. F., MÁRQUEZ-RÍOS, E., MONTOYA-CAMACHO, N., RUIZ-CRUZ, S., & OCAÑO-HIGUERA, V. M. (2014). Postmortem biochemical changes and evaluation of the freshness in the muscle of tilapia (Oreochromis niloticus) during the storage in ice. Journal of Fisheries and Aquatic Science, 9(6), 435–445. https://doi.org/10.3923/jfas.2014.435.445
DASKALOVA, A. (2019). Farmed fish welfare: Stress, post-mortem muscle metabolism, and stress-related meat quality changes. International Aquatic Research, 11, 113–124. https://doi.org/10.1007/s40071-019-0230-0
Food and Agriculture Organization of the United Nations. (2024). The State of World Fisheries and Aquaculture 2024: Blue transformation in action. https://doi.org/10.4060/cd0683en
HEMATYAR, N., IMENTAI, A., KŘIŠŤAN, J., WAGHMARE, S. G., & POLICAR, T. (2022). Considering two aspects of fish welfare on African catfish (Clarias gariepinus) fillet throughout postmortem condition: Efficiency and mechanisms. Foods, 11(24), 4090. https://doi.org/10.3390/foods11244090
HURLBERT, S. H. (1984). Pseudoreplication and the design of ecological field experiments. Ecological Monographs, 54(2), 187–211. https://doi.org/10.2307/1942661
HUSS, H. H. (1995). Quality and quality changes in fresh fish (FAO Fisheries Technical Paper No. 348). Food and Agriculture Organization of the United Nations.
LAMBOOIJ, E., KLOOSTERBOER, R. J., GERRITZEN, M. A., & VAN DE VIS, J. W. (2006). Assessment of electrical stunning in fresh water of African catfish (Clarias gariepinus) and chilling in ice water for loss of consciousness and sensibility. Aquaculture, 254, 388–395. https://doi.org/10.1016/j.aquaculture.2005.10.027
LE, T. T., NGUYEN, H. T., & PHAM, M. A. (2020). Rigor mortis development and effects of filleting conditions on the quality of Tra catfish (Pangasius hypophthalmus) fillets. Journal of Food Science and Technology, 57(4), 1320–1330. https://doi.org/10.1007/s13197-019-04166-x
MONTOYA-CAMACHO, N., MÁRQUEZ-RÍOS, E., CASTILLO-YÁÑEZ, F. J., RUÍZ-CRUZ, S., CÁRDENAS-LÓPEZ, J. L., ARVIZU-FLORES, A. A., TORRES-ARREOLA, W., & OCAÑO-HIGUERA, V. M. (2020). Efecto de la temperatura de almacenamiento sobre el rigor mortis del músculo de tilapia (Oreochromis niloticus). Biotecnia, 22(2), 88–93. https://doi.org/10.18633/biotecnia.v22i2.1249
OLIVEIRA FILHO, P. R. C., OLIVEIRA, C. A. F., SOBRAL, P. J. A., BALIEIRO, J. C. C., NATORI, M. M., & VIEGAS, E. M. M. (2015). How stunning methods affect the quality of Nile tilapia meat. CyTA - Journal of Food, 13(1), 56–62. https://doi.org/10.1080/19476337.2014.911211
POLI, B. M., PARISI, G., SCAPPINI, F., & ZAMPACAVALLO, G. (2005). Fish welfare and quality as affected by pre-slaughter and slaughter management. Aquaculture International, 13, 29–49. https://doi.org/10.1007/s10499-004-9035-1
PRESENZA, L. S., SANTOS, A. S., SILVA, A. C. F., BERNABÉ, C. V., FERREIRA, J. V. F., DAYRELL, L. C., GARCIA, R. C. P., LAVANDER, H. D., & MINOZZO, M. G. (2021). Rigor index of juvenile cobia (Rachycentron canadum): Study with anesthesia (eugenol) and hypothermia. International Journal of Advanced Engineering Research and Science, 8(4), 123–127. https://doi.org/10.22161/ijaers.84.14
PRESTES DOS SANTOS, S., DA SILVA, M. I., GODOY, A. C., DE ALMEIDA BANHARA, D. G., GOES, M. D., SOUZA DOS REIS GOES, E., & HONORATO, C. A. (2024). Respiratory and muscular effort during pre-slaughter stress affect Nile tilapia fillet quality. PLOS ONE, 19(7), e0306880. https://doi.org/10.1371/journal.pone.0306880
ROTH, B., SLINDE, E., & ARILDSEN, J. (2006). Pre or post mortem muscle activity in Atlantic salmon (Salmo salar): The effect on rigor mortis and the physical properties of flesh. Aquaculture, 257, 504–510. https://doi.org/10.1016/j.aquaculture.2005.10.021
SUNDELL, E., BRIJS, J., & GRÄNS, A. (2024). The quest for a humane protocol for stunning and killing Nile tilapia (Oreochromis niloticus). Aquaculture, 593, 741317. https://doi.org/10.1016/j.aquaculture.2024.741317
WATABE, S., USHIO, H., IWAMOTO, M., YAMANAKA, H., & HASHIMOTO, K. (1989). Temperature-dependency of rigor-mortis of fish muscle: Myofibrillar Mg2+-ATPase activity and Ca2+ uptake by sarcoplasmic reticulum. Journal of Food Science, 54(5), 1107–1110. https://doi.org/10.1111/j.1365-2621.1989.tb05933.x
YANG, X., MEI, J., & XIE, J. (2024). Effects of different slaughtering methods on the biochemical characteristics and quality changes of tilapia (Oreochromis niloticus) during cold storage. Food Chemistry: X, 24, 101951. https://doi.org/10.1016/j.fochx.2024.101951
YASMIN, L., KAMAL, M., AHMED, S. A. K., AZIMUDDIN, K. M., KHAN, M. N. A., & ISLAM, M. N. (2001). Studies on the post-mortem changes in genetically improved farmed tilapia (Oreochromis niloticus) during ice storage. Pakistan Journal of Biological Sciences, 4(9), 1144–1148.
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