Effect of different inorganic phosphorus sources on growth performance, digestibility, retention efficiency and discharge of nutrients in rainbow trout (Oncorhynchus mykiss)
| datacite.alternateIdentifier.citation | Aquaculture, Vol.495, 568-574, 2018 | |
| datacite.alternateIdentifier.doi | 10.1016/j.aquaculture.2018.06.036 | es_ES |
| datacite.creator | Morales, Gabriel | |
| datacite.creator | Azcuy, Rosendo | |
| datacite.creator | Casaretto, Matías | |
| datacite.creator | Márquez, Lorenzo | |
| datacite.creator | Hernández, Adrián | |
| datacite.creator | Gómez, Federico | |
| datacite.creator | Koppe, Wolfgang | |
| datacite.creator | Mereu, Alessandro | |
| datacite.date | 2018 | |
| datacite.date.issued | 2019-11-04 | |
| datacite.subject | Oncorhynchus mykiss | es_ES |
| datacite.subject | Trucha arcoíris | es_ES |
| datacite.subject | Fosfatos | es_ES |
| datacite.subject | Fosfato inorgánico | es_ES |
| datacite.title | Effect of different inorganic phosphorus sources on growth performance, digestibility, retention efficiency and discharge of nutrients in rainbow trout (Oncorhynchus mykiss) | es_ES |
| dc.date.accessioned | 2019-11-04T18:14:07Z | |
| dc.date.available | 2019-11-04T18:14:07Z | |
| dc.description.abstract | This study aims to evaluate the effect of different sources of inorganic phosphate, monosodium phosphate (MSP), monocalcium phosphate (MCP) and monoammonium phosphate (MAP), included in a diet for rainbow trout, on growth performance, nutrient digestibility, nutrient retention efficiency and discharge of nutrients to the water. Juvenile rainbow trout (Oncorhynchus mykiss) with an initial weight of 120 g were fed for 56 days four experimental diets: basal diet containing 430 g kg(-1) protein, 210 g kg(-1) lipids and 6.7 g kg(-1) total phosphorus (P) (Control), and three experimental diets consisting in the basal diet plus 4 g P kg(-1) from MSP, MCP and MAP, respectively. Both MSP and MAP resulted in higher levels of P apparent digestibility (approximate to 90%) compared to MCP (70%), increasing the dry matter digestibility of the nutrient in the feed. The retention efficiency of P in fish tissues was increased by nearly 15% units over the Control when MSP and MAP were used as P supplement, whereas in agreement with the lower digestibility observed in MCP, P retention efficiency from this phosphate source was lower than the other sources. Total P discharge to the water was similar for MSP, MCP and MAP (4.12-4.58 g kg(-1) BW fish gain). However, fish fed with MCP showed higher solid/particulate P discharge to the water through faeces due to the lower digestibility of this P-source within the gut of the fish. Among the phosphate salts evaluated, fish fed MSP and MCP did not show differences for soluble or solid N discharged fractions. However, fish fed the diet supplemented with MAP released a higher amount of non-protein N fraction to the water, probably as undigested ammonium through the faeces released by fish | es_ES |
| dc.format | es_ES | |
| dc.identifier.uri | http://repositoriodigital.uct.cl/handle/10925/2053 | |
| dc.language.iso | en | es_ES |
| dc.source | Aquaculture | es_ES |
| oaire.resourceType | Artículo de Revista | es_ES |
| uct.catalogador | pop | es_ES |
| uct.indizacion | ISI - Science Citation Index | es_ES |
| uct.indizacion | SCOPUS | es_ES |
| uct.nucleos | Núcleo en Medio Ambiente | es_ES |