Predicting aquaculture waste from gilthead seabream (Sparus aurata) culture using a nutritional approach |
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| Institution: | 1. Department of Experimental Animal Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea;2. Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea;3. Department of Biomedical Engineering, College of Medicine and Institute of Medical and Biological Engineering, Medical Research Center, Seoul National University, Seoul, Republic of Korea;4. Department of Urology, Seoul National University College of Medicine, Seoul, Republic of Korea;5. Biomedical Center for Animal Resource and Development, N-BIO, Seoul National University, Seoul, Republic of Korea;6. Graduate School of Translational Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea;7. Designed Animal and Transplantation Research Institute, Institute of GreenBio Science Technology, Seoul National University, Pyeongchang-gun, Gangwon-do, Republic of Korea;1. College of Chemistry and Chemical Engineering, University of Jinan, Nanxinxi Road 336, Jinan 250022, China;2. Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, Nanxinxi Road 336, Jinan 250022, China;1. Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA;2. VA Pittsburgh Healthcare System, Pittsburgh, PA |
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| Abstract: | A model to estimate the waste production from sea cage culture was established. Using known feed inputs of nitrogen, phosphorus and organic matter, the model quantifies waste discharge from seabream culture. Daily feed intake and growth in Sparus aurata fed a commercial diet with known composition were measured and found to be dependent on fish weight and water temperature. Digestibility of the commercial feed was measured using chromic oxide as a marker and collection of feces by stripping. The proximate composition of Sparus aurata at different sizes was determined and nitrogen and phosphorus content were on average 28.5 and 7.2 g·kg−1 body mass, respectively. Excretion of ammonia-nitrogen and inorganic phosphorus after metabolic processes was calculated as the difference. |
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