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Title: | Porcine Protein Hydrolysates (PEPTEIVA(r)) Promote Growth and Enhance Systemic Immunity in Gilthead Sea Bream (Sparus aurata) |
Author: | Gisbert Casas, Enric Ibarz i Valls, Antoni Firmino, Joana P. Fernández-Alacid, Laura Salomón, Ricardo Vallejos Vidal, Eva Ruiz, Alberto Polo Pozo, Francisco Javier Sanahuja Piera, Ignasi Reyes López, Felipe E. Tort Bardolet, Lluís Andree, Karl B. |
Keywords: | Aqüicultura Orada Nutrició animal Aquaculture Sparus aurata Animal nutrition |
Issue Date: | 16-Jul-2021 |
Publisher: | MDPI |
Abstract: | The effects of porcine plasma protein hydrolysate (PPH) on growth, feed efficiency, and immune responses was evaluated in Sparus aurata. Fish were fed two isoproteic (48% protein), isolipidic (17% fat), and isoenergetic diets (21.7 MJ/kg) diets, one of them containing 5% PPH at the expense of fishmeal. Both diets were tested for 92 days. A significant increase in growth was observed in fish fed the PPH diet in comparison to the control group (182.2 ± 4.4 vs. 173.8 ± 4.1 g), as well as an increase in feed intake without worsening FCR values. An ex vivo assay, with splenocytes incubated with lipopolysaccharide, was conducted to evaluate the cellular immune competence of fish. Genes involved in humoral immunity (lys, IgM), pro- (tnf-α, il-1β), and anti-inflammatory (tgf-β1, il10) cytokines were upregulated in the PPH group in comparison to the control group. The inclusion of PPH in diets enhanced the antibacterial capacity of skin mucus, as the co-culture of selected bacteria (E. coli, V. anguillarum, and P. anguilliseptica) with skin mucus indicated. The present results showed that the PPH in low fishmeal diets (2%) promoted growth and feed efficiency, as well as enhancing the immune response, which indicates that this is a safe and functional ingredient for aquafeeds. |
Note: | Reproducció del document publicat a: https://doi.org/10.3390/ani11072122 |
It is part of: | Animals, 2021, vol. 11, num. 7, p. 1-16 |
URI: | http://hdl.handle.net/2445/183853 |
Related resource: | https://doi.org/10.3390/ani11072122 |
ISSN: | 2076-2615 |
Appears in Collections: | Articles publicats en revistes (Biologia Cel·lular, Fisiologia i Immunologia) |
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