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Carob seed germ meal as a partial substitute in gilthead sea bream (Sparus aurata) diets: Amino acid retention, digestibility, gut and liver histology

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Carob seed germ meal as a partial substitute in gilthead sea bream (Sparus aurata) diets: Amino acid retention, digestibility, gut and liver histology

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dc.contributor.author Martínez-Llorens, Silvia es_ES
dc.contributor.author Baeza Ariño, Rosa es_ES
dc.contributor.author Nogales Mérida, Silvia es_ES
dc.contributor.author Jover Cerdá, Miguel es_ES
dc.contributor.author Tomás Vidal, Ana es_ES
dc.date.accessioned 2015-02-09T09:31:38Z
dc.date.available 2015-02-09T09:31:38Z
dc.date.issued 2012-03-29
dc.identifier.issn 0044-8486
dc.identifier.uri http://hdl.handle.net/10251/46836
dc.description.abstract The use of carob seed germ meal (CG) as a substitute for fish meal was evaluated in fingerlings (average weight 10g) of gilthead sea bream fed isonitrogenous (46% Crude Protein, CP) and isolipidic (19.5% Crude Lipid, CL) diets containing four CG levels (0, 17, 34 and 52%). The duration of the trial was 83days. The diets were tested in triplicate, and the fish were fed to satiation twice daily. The apparent protein and energy digestibility coefficients decreased in response to the dietary inclusion of CG. The decreases in the values of the ADC ranged from 93% for the 0 diet to 80% for the 52 diet. The amount of digestible Arg in the diets increased with the inclusion of CG, from 3.2g Arg 100g -1 in the 0 diet to 4.81g Arg 100g -1 in the 52 diet. The digestible Arg content increased in the diets because the amounts of the remaining digestible amino acids decreased. The fish reached weights of 72, 72, 69 and 53g on the 0, 17, 34 and 52 diets, respectively. The 52 diet gave the lowest specific growth rate (SGR, 1.95%day -1) relative to those found for the other three diets (2.32%day -1). The 52 diet produced the least satisfactory results for feed intake (FI) and the food conversion ratio (FCR) (2.23g 100gfish -1day -1 and 1.38, respectively). The efficiency of retention of His, Phe and Leu in the fish fed the 52 diet showed the lowest values (17.3, 25.5 and 28.5%, respectively), but the efficiency of retention of Met in the fish fed the 52 diet showed the highest value (48.2%).In the distal intestine and liver, histological alterations were found in the fish fed the 34 and the 52 diets. In fish fed the 52 diet, the mucosal fold was significantly shorter and thinner and exhibited a smaller number of goblet cells. These changes could affect nutrient uptake by modifying the digestibility of the diet. The histology of the liver did not show severe degradation in any treatment. The results of the present experiment demonstrated that CG can be included at levels up to 34% in diets for short term feeding of gilthead sea bream without any adverse effects on fish growth and nutritive parameters. es_ES
dc.description.sponsorship Present work was financed by AGROALIMED and GV/2010/046 (Conselleria de Agricultura, Pesca y Alimentacion, Generalitat Valenciana). en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation AGROALIMED GV/2010/046 es_ES
dc.relation.ispartof Aquaculture es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Amino acid retention es_ES
dc.subject Carob es_ES
dc.subject Histology es_ES
dc.subject Sea bream es_ES
dc.subject Amino acid es_ES
dc.subject Commercial species es_ES
dc.subject Diet es_ES
dc.subject Digestibility es_ES
dc.subject Food intake es_ES
dc.subject Growth rate es_ES
dc.subject Mariculture es_ES
dc.subject Nutrient uptake es_ES
dc.subject Perciform es_ES
dc.subject Protein es_ES
dc.subject Retention es_ES
dc.subject Archosargus rhomboidalis es_ES
dc.subject Ceratonia siliqua es_ES
dc.subject Sparus aurata es_ES
dc.subject.classification PRODUCCION ANIMAL es_ES
dc.title Carob seed germ meal as a partial substitute in gilthead sea bream (Sparus aurata) diets: Amino acid retention, digestibility, gut and liver histology es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.aquaculture.2012.01.029
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ciencia Animal - Departament de Ciència Animal es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Ciencia y Tecnología Animal - Institut de Ciència i Tecnologia Animal es_ES
dc.description.bibliographicCitation Martínez-Llorens, S.; Baeza Ariño, R.; Nogales Mérida, S.; Jover Cerda, M.; Tomás Vidal, A. (2012). Carob seed germ meal as a partial substitute in gilthead sea bream (Sparus aurata) diets: Amino acid retention, digestibility, gut and liver histology. Aquaculture. 338(341):124-133. doi:10.1016/j.aquaculture.2012.01.029 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.aquaculture.2012.01.029 es_ES
dc.description.upvformatpinicio 124 es_ES
dc.description.upvformatpfin 133 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 338 es_ES
dc.description.issue 341 es_ES
dc.relation.senia 223003


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