Evaluación comparativa entre alimento vivo y dieta balanceada para la reproducción del pez andinoacara rivulatus en ambiente controlado

Abstract

Fish farming, especially the reproduction of endemic species, faces technological challenges due to the scarcity of information on their optimal nutritional requirements. Therefore, the present study was carried out to evaluate the efficiency between live food (Eisenia foetida) and a balanced diet in the reproduction of Andinoacara rivulatus fish in a controlled environment. The study used a completely randomized design with two treatments and three replicates, analyzing parameters such as gonadal maturation, water quality and feed conversion factor (FCR). Environmental conditions essential for reproduction, including pH, dissolved oxygen and temperature, were monitored during the seven weeks of the project. Results indicated that the commercial feed (35% protein) promoted greater gonadal development compared to Eisenia foetida (13% protein). Although reproduction was not achieved, it was observed that the gonads of the females fed the commercial diet reached an average weight of 2.25 g, while those fed live feed registered 1.60. While in male gonads there was no significant difference. Likewise, the FCA was more efficient in fish fed commercial diet (1.06) than in those consuming live food (1.48). In other words, protein is a key factor in gonadal maturation and commercial feed is more efficient for this purpose. It is recommended to characterize more precisely the nutritional content of natural alternatives and to explore live food sources with a higher protein content in order to improve the reproduction of A. rivulatus in captivity.