Regulation of growth-related genes by nutrition in paralarvae of the common octopus (Octopus vulgaris)
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AuthorsGarcia de la serrana, D.; Pérez, M. (Montse); Nande, M. (Manuel); Hernández-Urcera, J. (Jorge); Pérez, E.; Coll-Lladó, C.; Hollenbeck, C.
URL Recurso relacionadohttps://www.sciencedirect.com/science/article/abs/pii/S0378111920303395?via%3Dihub#!
The common octopus (Octopus vulgaris) is a species of great interest to the aquaculture industry. However, the high mortalities registered during different phases of the octopus lifecycle, particularly the paralarvae stage, present a challenge for commercial aquaculture. Improvement of diet formulation is seen as one way to reduce mortality and improve growth. Molecular growth-markers could help to improve rearing protocols and increase survival and growth performance; therefore, over a hundred orthologous genes related to protein balance and muscle growth in vertebrates were identified for the common octopus and their suitability as molecular markers for growth in octopus paralarvae explored. We successfully amplified 14 of those genes and studied their transcription in paralarvae either fed with artemia, artemia + zoea diets or submitted to a short fasting-refeeding procedure. Paralarvae fed with artemia + zoea had higher growth rates compared to those fed only with artemia, as well ...