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Effects of Eco-Organic Feed on Growth Performance, Biometric Indices, and Nutrient Retention of Gilthead Seabream ( Sparus aurata )

Author

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  • Eslam Tefal

    (Research Group of Aquaculture and Biodiversity, Institute of Animal Science and Technology, Universitat Politécnica de València Camino de Vera 14, 46071 València, Spain
    Department of Animal and Poultry Production, Faculty of Agriculture, Damanhour University, Damanhour 22516, Egypt)

  • Ana Tomás-Vidal

    (Research Group of Aquaculture and Biodiversity, Institute of Animal Science and Technology, Universitat Politécnica de València Camino de Vera 14, 46071 València, Spain)

  • Silvia Martínez-Llorens

    (Research Group of Aquaculture and Biodiversity, Institute of Animal Science and Technology, Universitat Politécnica de València Camino de Vera 14, 46071 València, Spain)

  • Ignacio Jauralde

    (Research Group of Aquaculture and Biodiversity, Institute of Animal Science and Technology, Universitat Politécnica de València Camino de Vera 14, 46071 València, Spain)

  • David Sánchez-Peñaranda

    (Research Group of Aquaculture and Biodiversity, Institute of Animal Science and Technology, Universitat Politécnica de València Camino de Vera 14, 46071 València, Spain)

  • Miguel Jover-Cerdá

    (Research Group of Aquaculture and Biodiversity, Institute of Animal Science and Technology, Universitat Politécnica de València Camino de Vera 14, 46071 València, Spain)

Abstract

This study examined how eco-organic feed affects the growth performance, nutrient efficiency, feed utilisation, and body composition of gilthead seabream. Six different diets were tested, including a control diet (CONT) without organic ingredients and four diets with 100% organic ingredients: trout (TRO), seabass (SBS), poultry (POU), and mix (MIX), along with a control organic diet (ORG) containing organic ingredients and 30% fishmeal. The experiment lasted 70 days, and the fish were fed twice a day, starting with an initial weight of 60.5 g. The results showed that the highest growth rates were observed in fish fed the ORG and CONT diets containing fishmeal. Conversely, the POU diet resulted in the lowest growth rate, survival rate, and highest value for feed conversion ratio (FCR). Almost all essential amino acid efficiency values were high in fish fed the ORG and CONT diets. Still, significant differences were noted in the retention efficiency of fatty acids across all diets. The retention efficiency was higher in the CONT diet, followed by the ORG diet. However, the economic conversion rate was lower for CONT, SBS, TRO, and MIX. Overall, using organic diets of animal origin impacted the growth performance of gilthead seabream, but it is still a promising approach.

Suggested Citation

  • Eslam Tefal & Ana Tomás-Vidal & Silvia Martínez-Llorens & Ignacio Jauralde & David Sánchez-Peñaranda & Miguel Jover-Cerdá, 2023. "Effects of Eco-Organic Feed on Growth Performance, Biometric Indices, and Nutrient Retention of Gilthead Seabream ( Sparus aurata )," Sustainability, MDPI, vol. 15(14), pages 1-16, July.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:14:p:10750-:d:1189664
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    Cited by:

    1. Edison D. Macusi & Melanie A. Cayacay & Elaine Q. Borazon & Anthony C. Sales & Ahasan Habib & Nur Fadli & Mudjekeewis D. Santos, 2023. "Protein Fishmeal Replacement in Aquaculture: A Systematic Review and Implications on Growth and Adoption Viability," Sustainability, MDPI, vol. 15(16), pages 1-15, August.

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