caa a22 4500 605464197 CHVBK 20210128100257.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s10499-014-9803-5 doi (NATIONALLICENCE)springer-10.1007/s10499-014-9803-5 Use of fresh vegetable discards as sea urchin diet: effect on gonad index and quality [Elektronische Daten] [Salvatrice Vizzini, Luca Miccichè, Antonino Vaccaro, Antonio Mazzola] This study evaluated the exploitation of unprocessed agricultural discards in the form of fresh vegetable leaves as a diet for the sea urchin Paracentrotus lividus through the assessment of their effects on gonad yield and quality. A stock of wild-caught P. lividus was fed on discarded leaves from three different species (Beta vulgaris, Brassica oleracea, and Lactuca sativa) and the macroalga Ulva lactuca for 3months under controlled conditions. At the beginning and end of the experiment, total and gonad weight were measured, while gonad and diet total carbon (C%), nitrogen (N%), δ13C, δ15N, carbohydrates, lipids, and proteins were analyzed. The results showed that agricultural discards provided for the maintenance of gonad index and nutritional value (carbohydrate, lipid, and protein content) of initial specimens. L. sativa also improved gonadic color. The results of this study suggest that fresh vegetable discards may be successfully used in the preparation of more balanced diets for sea urchin aquaculture. The use of agricultural discards in prepared diets offers a number of advantages, including an abundant resource, the recycling of discards into new organic matter, and reduced pressure on marine organisms (i.e., macroalgae) in the production of food for cultured organisms. Springer International Publishing Switzerland, 2014 Aquaculture nationallicence Echinoids nationallicence Paracentrotus lividus nationallicence Gonad color nationallicence Gonad index nationallicence Nutrition nationallicence Agricultural discards nationallicence IDC : Individual daily consumption nationallicence Wt : Total wet weight nationallicence Gw : Gonad wet weight nationallicence GI : Gonad index nationallicence DO : Dark orange nationallicence BO : Bright orange nationallicence YO : Yellow-orange nationallicence MO : Mango orange nationallicence AFDW : Ash-free dry weight nationallicence Vizzini Salvatrice Department of Earth and Marine Sciences, University of Palermo, CoNISMa, Via Archirafi 18, 90123, Palermo, Italy aut Miccichè Luca International Collaborating Centre for Aquaculture and Fisheries Sustainability (ICAFIS), Vietnam Fisheries Society (VINAFIS), 10 Nguyen Cong Hoan St, Ba Dinh, Hanoi, Vietnam aut Vaccaro Antonino Department of Earth and Marine Sciences, University of Palermo, CoNISMa, Via Archirafi 18, 90123, Palermo, Italy aut Mazzola Antonio Department of Earth and Marine Sciences, University of Palermo, CoNISMa, Via Archirafi 18, 90123, Palermo, Italy aut Aquaculture International Springer International Publishing 23/1(2015-02-01), 127-139 0967-6120 23:1<127 2015 23 10499 https://doi.org/10.1007/s10499-014-9803-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10499-014-9803-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vizzini Salvatrice Department of Earth and Marine Sciences, University of Palermo, CoNISMa, Via Archirafi 18, 90123, Palermo, Italy aut NATIONALLICENCE 700 1- Miccichè Luca International Collaborating Centre for Aquaculture and Fisheries Sustainability (ICAFIS), Vietnam Fisheries Society (VINAFIS), 10 Nguyen Cong Hoan St, Ba Dinh, Hanoi, Vietnam aut NATIONALLICENCE 700 1- Vaccaro Antonino Department of Earth and Marine Sciences, University of Palermo, CoNISMa, Via Archirafi 18, 90123, Palermo, Italy aut NATIONALLICENCE 700 1- Mazzola Antonio Department of Earth and Marine Sciences, University of Palermo, CoNISMa, Via Archirafi 18, 90123, Palermo, Italy aut NATIONALLICENCE 773 0- Aquaculture International Springer International Publishing 23/1(2015-02-01), 127-139 0967-6120 23:1<127 2015 23 10499