Incidence of type of food on survival and ecdysis in cultured Callinectes bocourti to obtain soft crab in the Colombian Caribbean
Guardado en:
| Autores: | , , , |
|---|---|
| Formato: | artículo original |
| Estado: | Versión publicada |
| Fecha de Publicación: | 2018 |
| Descripción: | The purpose of the paper was to determine the incidence of the type of diet on survival and ecdysis in cultured blunt-tooth swimming crab (Callinectes bocourti) to obtain soft crab as alternative fish production in the Colombian Caribbean. Two experiments were conducted: 1. fresh fish / fresh fish + Ca+ and 2. fresh fish / shrimp concentrated feed (34% protein). In 4 independent recirculation modules, each with 4 aquariums articulated to biological filters, a specimen/aquarium was planted (64 crabs per test), and 3 series were conducted of 45 days each. In experiment 1, a total of 378 specimens survived; 203 (53.7%) had the fresh fish diet, while 175 (46.3%) were fed fresh fish + Ca+. In experiment 2, a total of 293 (21.8%) specimens survived; 180 (61.4%) consumed fresh fish and 113 (38.6%) shrimp feed. There is no relationship between diet and ecdysis in experiment 1, while there is relationship between sex (female) and ecdysis in experiment 2. It is concluded that C. bocourti is a species with crop management difficulties, and survival does not depend on diet. Sex (female) is a variable to consider in the ecdysis of C. bocourti since females require more energy for the maturation process. Adding Ca+ to natural food has no greater implications in ecdysis. There may be a stronger relationship with environmental variables and hormonal processes than with the Ca+ intake. |
| País: | Portal de Revistas UNA |
| Institución: | Universidad Nacional de Costa Rica |
| Repositorio: | Portal de Revistas UNA |
| Lenguaje: | Español |
| OAI Identifier: | oai:ojs.www.una.ac.cr:article/11296 |
| Acceso en línea: | https://www.revistas.una.ac.cr/index.php/revmar/article/view/11296 |
| Palabra clave: | blunt-tooth swimming crab, soft shell crab, ecdysis, culture, food jaiba roja, jaiba blanda, ecdisis, cultivo, alimento siri pimenta, siri azul, ecdise, cultivo, alimento |