| Title: | High taurine supplementation in plant protein-based diets improves growth and organoleptic characteristics of European seabass (Dicentrarchus labrax) |
| Author(s): | Kotzamanis Y; Tsironi T; Brezas A; Grigorakis K; Ilia V; Vatsos I; Romano N; van Eys J; Kumar V; |
| Address: | "Fish Nutrition Lab, Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research (HCMR), Agios Kosmas, Hellinikon, 16777, Athens, Greece. jokotz@hcmr.gr. Food Process Engineering Laboratory, Department of Food Science and Human Nutrition, Agricultural University of Athens, 11855, Athens, Greece. Department of Animal and Veterinary Science, Aquaculture Research Institute, University of Idaho, Moscow, ID, 83844, USA. Fish Nutrition Lab, Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research (HCMR), Agios Kosmas, Hellinikon, 16777, Athens, Greece. Faculty of Biosciences and Aquaculture, Nord University, Post Box 1490, 8049, Bodo, Norway. Department of Aquaculture and Fisheries, University of Arkansas at Pine Bluff, Pine Bluff, USA. GANS Inc., 24 Av. de La Guillemotte, 78112, Fourqueux, France. Department of Animal and Veterinary Science, Aquaculture Research Institute, University of Idaho, Moscow, ID, 83844, USA. vikaskumar@uidaho.edu" |
| DOI: | 10.1038/s41598-020-69014-x |
| ISSN/ISBN: | 2045-2322 (Electronic) 2045-2322 (Linking) |
| Abstract: | "Plant-based proteins are increasingly being used in aquafeeds, but one of the limitations is taurine deficiency that can be especially detrimental for carnivorous fish. In this study, taurine supplementation in high plant protein diets (low fish meal, 15%) was investigated on the growth performance and fillet organoleptic characteristics of European seabass (Dicentrarchus labrax), juveniles (78 +/- 0.4 g). Five diets were formulated to contain 0 (C-), 5 (T5), 10 (T10) or 20 (T20) added taurine (g/kg), while a control diet (C+) included two-fold higher amount of fishmeal (30%) with no taurine supplementation. Seabass fed the T20 or C+ diet showed similar growth, which was significantly higher compared to those in the C-treatment. Histological examination of the muscle, liver and intestine were similar among treatments. No effect on spoilage bacterial growth or production of total volatile basic nitrogen was observed. Taurine supplementation significantly reduced fillet drip loss, while the fillets of European seabass fed the T10 and T20 diets showed significant higher and lower hardness and adhesiveness values, respectively. Moreover, fillet chewiness was also found to be significantly higher in fish fed the T20 diet compared to C+ and C- diets. Overall, it seems that high dietary taurine supplementation acted as a growth promoter and concurrently improved significantly the postharvest quality characteristics of seabass, which may be attributed to its role in maintaining cell membrane integrity and permeability" |
| Keywords: | Amino Acids *Animal Feed Animals *Bass *Dietary Supplements Nitrogen/chemistry *Plant Proteins/chemistry Taurine/*administration & dosage Volatile Organic Compounds; |
| Notes: | "MedlineKotzamanis, Yannis Tsironi, Theofania Brezas, Andreas Grigorakis, Kriton Ilia, Vassiliki Vatsos, Ioannis Romano, Nicholas van Eys, Jan Kumar, Vikas eng Research Support, Non-U.S. Gov't England 2020/07/25 Sci Rep. 2020 Jul 23; 10(1):12294. doi: 10.1038/s41598-020-69014-x" |
