caa a22 4500 605465061 CHVBK 20210128100300.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s10499-014-9825-z doi (NATIONALLICENCE)springer-10.1007/s10499-014-9825-z Development of the hepatopancreas and quality analysis of post-larvae Pacific white shrimp Litopenaeus vannamei produced in a BFT system [Elektronische Daten] [Sabrina Suita, Alessandro Cardozo, Luis Romano, Paulo Abreu, Wilson Wasielesky Jr.] The production of marine shrimp in biofloc systems has a low environmental impact; the shrimp benefit from the maintenance of water quality and possibly utilize the system's microbial community as a food resource, which also positively affects the synthesis of digestive enzymes produced by the hepatopancreas. The aim of this study was to determine the performance, the post-larvae quality indicators and the development of the hepatopancreas and tubules of post-larvae Pacific white shrimp Litopenaeus vannamei produced in a BFT system during the nursery stage. Two experiments were conducted: NI (PL1-PL15; 75 shrimpsL−1) and NII (PL16-PL30; 50shrimpsL−1). Both experiments included a control treatment simulating a traditional nursery with water renewal and a biofloc treatment without water renewal but including organic fertilization with dextrose every time the ammonia nitrogen concentration exceeded 0.5mgL−1. Daily water quality analyses were performed. The best performance and the final quality of the production were observed in the biofloc treatment of both experiments. The total area of the hepatopancreas was significantly different between treatments in experiment NI, while the thickness of the tubules was significantly different between treatments in experiment NII. In both experiments, the hepatopancreas tubules from the biofloc treatment showed increased thickness and an apparent greater amount of enzyme producing cells (B cells) than the control treatment. The results suggest that when compared to conventional production systems, the bioflocs system may provide better nutritional support, allowing for proper development of the hepatopancreas and better nutritional conditions, resulting in healthier post-larvae shrimp. Springer International Publishing Switzerland, 2014 Biofloc nationallicence Dextrose nationallicence Hepatopancreas nationallicence Nursery nationallicence Shrimp nationallicence Suita Sabrina Marine Station of Aquaculture, Institute of Oceanography, Federal University of Rio Grande, C.P. 474, CEP 96201-900, Rio Grande, RS, Brazil aut Cardozo Alessandro Marine Station of Aquaculture, Institute of Oceanography, Federal University of Rio Grande, C.P. 474, CEP 96201-900, Rio Grande, RS, Brazil aut Romano Luis Marine Station of Aquaculture, Institute of Oceanography, Federal University of Rio Grande, C.P. 474, CEP 96201-900, Rio Grande, RS, Brazil aut Abreu Paulo Marine Station of Aquaculture, Institute of Oceanography, Federal University of Rio Grande, C.P. 474, CEP 96201-900, Rio Grande, RS, Brazil aut Wasielesky Jr. Wilson Marine Station of Aquaculture, Institute of Oceanography, Federal University of Rio Grande, C.P. 474, CEP 96201-900, Rio Grande, RS, Brazil aut Aquaculture International Springer International Publishing 23/2(2015-04-01), 449-463 0967-6120 23:2<449 2015 23 10499 https://doi.org/10.1007/s10499-014-9825-z 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/s10499-014-9825-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Suita Sabrina Marine Station of Aquaculture, Institute of Oceanography, Federal University of Rio Grande, C.P. 474, CEP 96201-900, Rio Grande, RS, Brazil aut NATIONALLICENCE 700 1- Cardozo Alessandro Marine Station of Aquaculture, Institute of Oceanography, Federal University of Rio Grande, C.P. 474, CEP 96201-900, Rio Grande, RS, Brazil aut NATIONALLICENCE 700 1- Romano Luis Marine Station of Aquaculture, Institute of Oceanography, Federal University of Rio Grande, C.P. 474, CEP 96201-900, Rio Grande, RS, Brazil aut NATIONALLICENCE 700 1- Abreu Paulo Marine Station of Aquaculture, Institute of Oceanography, Federal University of Rio Grande, C.P. 474, CEP 96201-900, Rio Grande, RS, Brazil aut NATIONALLICENCE 700 1- Wasielesky Jr Wilson Marine Station of Aquaculture, Institute of Oceanography, Federal University of Rio Grande, C.P. 474, CEP 96201-900, Rio Grande, RS, Brazil aut NATIONALLICENCE 773 0- Aquaculture International Springer International Publishing 23/2(2015-04-01), 449-463 0967-6120 23:2<449 2015 23 10499