Recombinant gonadotropin-based hormone therapies for increasing fertility in the flatfish Senegalese sole

Published the study on the “Developing recombinant gonadotropin-based hormone therapies for increasing fertility in the flatfish Senegalese sole”, carried out by the Institute of Research and Technology in Agrifood (IRTA) and the Higher Council for Scientific Research (CSIC).

Reproductive dysfunctions of male fish are often encountered in the aquaculture of flatfishes (Pleuronectiformes), a group of fishes of high commercial value worldwide. The Senegalese sole (Solea senegalensis) is a highly prized flatfish with growing commercial importance in Southern Europe and Asia. However, the mass production of alevins of this species largely relies on wild male breeders acclimated to captivity, since the first generation of cultured males usually show low or more often zero natural fertilization rates. This situation hampers the selective breeding of farmed populations and makes the industry unsustainable in the long term. The development of in vitro fertilization methods has been envisaged as an alternative approach, but the low quantity and variable quality of the sperm that the sole males typically produce make these methods impractical at an industrial level. The use of hormone therapies to enhance sperm production could provide a solution to ameliorate the reproductive dysfunctions arising in cultured fish.

See the article published on this link: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0174387

23/03/17