Effect of L-Hyp supplementation on collagen muscle histology, gene expression, growth performance, body composition and fillet texture on big size European sea bass (Dicentrarchux labrax)
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Autor/a
Castro, Pedro L.
Plasencia, Sergio
Zamorano, María Jesús
Claret, Anna
Beltrán, José A.
Calanche, Juan
Ginés, Rafael
Fecha de publicación
2021-07-09ISSN
2352-5134
Resumen
Hydroxyproline (L-Hyp) is amply present in fishmeal but limited in plant-protein sources. This study was conducted to evaluate the effects of supplementation with dietary L-Hyp on the distribution of collagen types in the muscle, and on the texture, survival rate, growth rate, feed utilization, body composition as well as the expression of the gene that encodes the pro-alpha2 chains of type I collagen (Col Iα2) of large European sea bass (initial body weight 609.21 ± 75.39 g) from high plant-protein diets. Four isoproteic (42 % crude protein) and isolipidic (20 % crude lipid) experimental diets were formulated adding 0.6 (HL diet), 1.2 (HM diet), and 2% (HH diet) L-Hyp, respectively. Three periods of feeding of 45, 99 and 143 days were studied. L-Hyp supplementation at 1.2 % and 2 % significantly improved specific growth rate (SGR) and feed conversion ratio (FCR). In the white muscle, type I, IV collagen and trichromic stain were significantly higher in HH feed than the control diet. In the red muscle, only type I collagen was higher. HH diet, also increases Col Iα2 mRNA levels in muscle significantly. It can be concluded that the addition of crystalline l-Hyp at 1.2 % or 2 % in high plant-protein diets indicates positive effects on growth performance of adult European sea bass and increase in muscle total collagen deposition.
Tipo de documento
Artículo
Versión del documento
Versión publicada
Lengua
Inglés
Materias (CDU)
663/664 - Alimentos y nutrición. Enología. Aceites. Grasas
Páginas
9
Publicado por
Elsevier
Publicado en
Aquaculture Reports
Citación
Castro, Pedro L., Sergio Plasencia, María Jesús Zamorano, Luis Guerrero, Anna Claret, José A. Beltrán, Juan Calanche, and Rafael Ginés. 2021. "Effect Of L-Hyp Supplementation On Collagen Muscle Histology, Gene Expression, Growth Performance, Body Composition And Fillet Texture On Big Size European Sea Bass (Dicentrarchux Labrax)". Aquaculture Reports 21: 100787. doi:10.1016/j.aqrep.2021.100787.
Número del acuerdo de la subvención
INIA/Programa Estatal de I+D+I orientada a los retos de la sociedad/RTA2013-00075-C03-02/ES/Desarrollo de nuevos productos procedentes de pescado de acuicultura/
Program
Qualitat i Tecnologia Alimentària
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