caa a22 4500 606243542 CHVBK 20210128101325.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s11694-015-9269-9 doi (NATIONALLICENCE)springer-10.1007/s11694-015-9269-9 Use of ultrasonic extraction in determining apparent digestibility in fish feed [Elektronische Daten] [Bruna Cavecci, Paula de Lima, José Vieira, Camila Braga, João de Queiroz, Alis Bittarello, Pedro de Padilha] The feeds supplied to farmed fish should be rich in protein and minerals, such as animal protein, but more expensive alternatives comprising vegetable protein have emerged in recent years. However, the minerals essential to the proper development of fish must be assessed. To determine whether the minerals supplied in the diet are being fully exploited, the equation of the apparent digestibility coefficient is typically used with an external marker such as chromium. Moreover, the concentrations of the metals of interest are usually obtained using an acid digestion in the digester block; however, this digestion is harmful to both the analyst and the environment. An alternative to this digestion is described in this work. Four types of feeds were made with different types of protein substitutes. Springer Science+Business Media New York, 2015 Oreochromis niloticus nationallicence Nutrients nationallicence Extraction of minerals nationallicence Aquaculture nationallicence Cavecci Bruna Department of Chemistry and Biochemistry, Institute of Bioscience, São Paulo State University (UNESP), Rubião Junior District, 18618-970, Botucatu, São Paulo, Brazil aut de Lima Paula College of Veterinary and Animal Science, São Paulo State University, Botucatu, São Paulo, Brazil aut Vieira José Department of Chemistry and Biochemistry, Institute of Bioscience, São Paulo State University (UNESP), Rubião Junior District, 18618-970, Botucatu, São Paulo, Brazil aut Braga Camila Department of Chemistry and Biochemistry, Institute of Bioscience, São Paulo State University (UNESP), Rubião Junior District, 18618-970, Botucatu, São Paulo, Brazil aut de Queiroz João College of Veterinary and Animal Science, São Paulo State University, Botucatu, São Paulo, Brazil aut Bittarello Alis College of Veterinary and Animal Science, São Paulo State University, Botucatu, São Paulo, Brazil aut de Padilha Pedro Department of Chemistry and Biochemistry, Institute of Bioscience, São Paulo State University (UNESP), Rubião Junior District, 18618-970, Botucatu, São Paulo, Brazil aut Journal of Food Measurement and Characterization Springer US; http://www.springer-ny.com 9/4(2015-12-01), 599-603 2193-4126 9:4<599 2015 9 11694 https://doi.org/10.1007/s11694-015-9269-9 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/s11694-015-9269-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cavecci Bruna Department of Chemistry and Biochemistry, Institute of Bioscience, São Paulo State University (UNESP), Rubião Junior District, 18618-970, Botucatu, São Paulo, Brazil aut NATIONALLICENCE 700 1- de Lima Paula College of Veterinary and Animal Science, São Paulo State University, Botucatu, São Paulo, Brazil aut NATIONALLICENCE 700 1- Vieira José Department of Chemistry and Biochemistry, Institute of Bioscience, São Paulo State University (UNESP), Rubião Junior District, 18618-970, Botucatu, São Paulo, Brazil aut NATIONALLICENCE 700 1- Braga Camila Department of Chemistry and Biochemistry, Institute of Bioscience, São Paulo State University (UNESP), Rubião Junior District, 18618-970, Botucatu, São Paulo, Brazil aut NATIONALLICENCE 700 1- de Queiroz João College of Veterinary and Animal Science, São Paulo State University, Botucatu, São Paulo, Brazil aut NATIONALLICENCE 700 1- Bittarello Alis College of Veterinary and Animal Science, São Paulo State University, Botucatu, São Paulo, Brazil aut NATIONALLICENCE 700 1- de Padilha Pedro Department of Chemistry and Biochemistry, Institute of Bioscience, São Paulo State University (UNESP), Rubião Junior District, 18618-970, Botucatu, São Paulo, Brazil aut NATIONALLICENCE 773 0- Journal of Food Measurement and Characterization Springer US; http://www.springer-ny.com 9/4(2015-12-01), 599-603 2193-4126 9:4<599 2015 9 11694