Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/135109
Título: Optimization of feed ration size in aquatic system according to the optimal control approach: implications of using the von Bertalanffy Growth Model
Autores/as: Dominguez-May, Roger
Poot-Lopez, Gaspar R.
Hernández Guerra, Juan María 
Velazquez-Abunader, Ivan
Clasificación UNESCO: 530202 Modelos econométricos
Palabras clave: Tilapia Oreochromis-Niloticus
Nile Tilapia
Optimal Management
Water Temperature
Body-Composition, et al.
Fecha de publicación: 2024
Publicación seriada: Aquaculture Research 
Resumen: Rationing aquaculture farming feed is challenging for producers due to high feed costs, representing 30%-60% of the total operating costs. Therefore, optimal timing of feeding could lead to improved economic returns from an aquatic system. An optimal dynamic feeding model has been determined considering the von Bertalanffy growth model. A bioeconomic model of tilapia production in Mexico for specific markets was used for numerical illustration. The von Bertalanffy growth model was parameterized with experimental data from tilapia (Oreochromis niloticus) fed four ration sizes (50%, 80%, 100%, and satiety), in order to determine different optimal rationing for different fish sizes (200, 300, and 400 g), market prices (Monterrey, Canc & uacute;n, Mexico City, and On site), and optimal harvesting times (OHT), considering the time value of money. The results of the modeled optimal feeding trajectories show a continuous decrease from stocking to reach a minimum value and then slightly approaching the harvest size. This result contrasts with the recommendations of the feed suppliers and with those found when a potential growth model was used. The results in the case study showed that the Monterrey market presented the highest present value of the benefits in the OHT and the different market sizes. The implications of the Bertalanffy model for optimal rationing trajectories are presented in the discussion.
URI: http://hdl.handle.net/10553/135109
ISSN: 1355-557X
DOI: 10.1155/2024/6512507
Fuente: Aquaculture Research[ISSN 1355-557X],v. 2024, (Octubre 2024)
Colección:Artículos
Adobe PDF (786,64 kB)
Vista completa

Google ScholarTM

Verifica

Altmetric


Comparte



Exporta metadatos



Los elementos en ULPGC accedaCRIS están protegidos por derechos de autor con todos los derechos reservados, a menos que se indique lo contrario.