Amino acids composition and protein quality evaluation of marine species and meals for feed formulations in cephalopods
| Autor: | Benjamín García García, Carlos Rodríguez, Juán Estefanell, Ana Tomás Vidal, Silvia Martínez-Llorens, Joan Ignasi Gairín, Carmen Rodríguez, Pedro Domingues, Jesús Cerezo Valverde, Miguel Jover |
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| Rok vydání: | 2013 |
| Předmět: |
chemistry.chemical_classification
Methionine Arginine Lysine Aquatic Science Biology PRODUCCION ANIMAL Amino acid Cephalopod chemistry.chemical_compound Feed formulation Fish meal Octopus chemistry Biochemistry Meal Leucine Agronomy and Crop Science Protein quality Feed composition Essential amino acid Nutrition |
| Zdroj: | e-IEO. Repositorio Institucional Digital de Acceso Abierto del Instituto Español de Oceanografía instname RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Popis: | The amino acid composition and protein levels of three species of cephalopods (Octopus vulgaris, Loligo gahi and Todarodes sagittatus), the natural diets of common octopus (O. vulgaris) and different kinds of meals were determined in order to optimise the content of these nutrients in artificial feeds. Arginine, leucine and lysine were the most abundant essential amino acids in cephalopods, while glutamate and aspartate represented the main non-essential amino acids. Arginine and leucine were the limiting amino acid in most samples, with maximum Chemical Score values for mussel (79-98 %), squid (84 %) and crustaceans (65-91 %); medium for fish (41-70 %); and minimum for meals (29-64 %). Mussel, squid, crustaceans and fish showed a high essential amino acid index according to Oser (OI: 88-99 %) suggesting a suitable amino acid balance. The protein from animal meals (fish and krill) covered all the essential amino acids except arginine and lysine in fish meal. The vegetable meal presented the worst amino acid balance (OI: 74-89 %) with several deficiencies in essential amino acids, including arginine, threonine, lysine and methionine. Supplementation with arginine or leucine and protein complementation of crustaceans and bivalves with fish or animal meal are proposed as alternatives for improving the performance of protein in feed for cephalopods. © 2012 Springer Science+Business Media B.V. Project financed by the National Marine Culture Plans of JACUMAR. |
| Databáze: | OpenAIRE |
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