Optimization of phosphorus content in high plant protein practical diets for Senegalese sole (Solea senegalensis, Kaup 1858) juveniles: influence on growth performance and composition of whole body and vertebrae
| Autor: | Emilio Salas-Leiton, Paulo J. Gavaia, A. Amoedo, Luisa M.P. Valente, J. Dias |
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| Přispěvatelé: | CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Atlantic salmon Bone density Nutrient utilization chemistry.chemical_element Aquatic Science 03 medical and health sciences chemistry.chemical_compound Flatfish Animal science Dicentrarchus-Labrax Metabolic-response Dry matter 14. Life underwater Solea senegalensis Paralichthys-Olivaceus 2. Zero hunger biology European Sea-Bass Phosphorus Fish-Meal 04 agricultural and veterinary sciences biology.organism_classification Phosphate Sparus-Aurata Trout Oncorhynchus-Mykiss Japanese flounder 030104 developmental biology chemistry Biochemistry Plant protein 040102 fisheries 0401 agriculture forestry and fisheries Composition (visual arts) |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP Aquaculture Nutrition |
| Popis: | Practical diets containing PP sources were elaborated. Increasing levels of di-calcium phosphate were added to diets leading to five different dietary available P levels: 2.5, 3.2, 6.0, 6.5 and 8.0 g kg−1 dry diet. The dietary treatments were tested in 13.5 g Senegalese sole juveniles throughout an 82-day experimental period. Dietary P content had no effect on the productive parameters, while nutrient intake was also similar among dietary treatments, except P intake. Dry matter ADC ranged between 54.9% and 64.0%, and the highest P ADCs value (47.2 ± 0.7%) was achieved in fish fed AP6.0. Dietary phosphorus level significantly influenced body lipid and P compositions. Regression analysis performed on whole-body P and ash contents fitted to quadratic models. Vertebral bone P content was low but increased significantly with increasing dietary P levels. Bone density and deformities occurrence were, however, similar between experimental conditions. An altered status of bone formation–resorption processes in soles fed the lowest P content diet might be inferred from ALP and TRAP activities. In conclusion, overall results state a high tolerance of Senegalese sole to low P content diets and support the utilization of practical diets with high plant protein content. © 2015 John Wiley & Sons This work was partially supported by NORTE‐07‐0124‐FEDER‐000038, in the context of the North Region Operational Programme (ON.2 – O Novo Norte), under the project Sustainable Aquaculture and Animal Welfare (AQUAIMPROV). There are no conflict of interests in connection with the present study. |
| Databáze: | OpenAIRE |
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