Protein hydrolysates from yeast and pig blood as alternative raw materials in microdiets for gilthead sea bream (Sparus aurata) larvae
|Author(s)||Gisbert Enric1, Skalli Ali1, 2, Fernandez Ignacio1, Kotzamanis Yannis3, Zambonino-Infante Jose Luiz4, Fabregat Rogelio5|
|Affiliation(s)||1 : IRTA, Ctr St Carles Rapita, Tarragona 43540, Spain.
2 : TECNOVIT, Tarragona 43365, Spain.
3 : Hellen Ctr Marine Res, Inst Aquaculture, Athens 16777, Greece.
4 : IFREMER, PFOM Dept, Fish Nutr Lab, F-29200 Plouzane, France.
5 : PROALAN SA, Poligon Ind Congost, Barcelona 08403, Spain.
|Source||Aquaculture (0044-8486) (Elsevier Science Bv), 2012-03 , Vol. 338 , P. 96-104|
|WOS© Times Cited||22|
|Keyword(s)||Digestive enzymes, Larvae, Gilthead sea bream, Protein hydrolysate, Skeletal deformities, Sparus aurata|
|Abstract||In this study, we have evaluated the incorporation of two types of protein hydrolysates at 9 and 12% levels of inclusion, one from yeast (Saccharomyces cerevisiae, YPH) and another one from pig blood (PBPH), in microdiets for gilthead sea bream (Sparus aurora) larvae, and compared these results to a microdiet containing fish protein hydrolysate and another group only fed with enriched live prey (rotifers and Artemia). The trial consisted in substituting up to 75% (wt/wt) the enriched Artemia with the experimental microdiets from 15 to 40 days post-hatch, whereas larvae were exclusively fed on microdiets from 40 to 55 dph. Protein hydrolysates used in the present study were obtained from different raw materials (yeast, pig blood and fish protein concentrate) and differed in their amino acid (AA) profile and in their molecular weight distribution. YPH and PBPH were mainly composed by free amino acids (FAA) (44%, MW<200 Da), di- and tripeptides (50%, 200|