Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Ronald K. Luz"'
Autor:
Lívia de A. Porto, Yhago P. A. S. Assis, Matheus P. S. Amorim, Paulo E. C. M. de Oliveira, Alessandro L. Paschoalini, Nilo Bazzoli, Ronald K. Luz, Gisele C. Favero
Publikováno v:
Fishes, Vol 9, Iss 2, p 71 (2024)
Fish can tolerate prolonged periods of fasting more easily than endothermic organisms. However, these fasting periods are associated with pronounced lipid and protein catabolism and body weight loss. We evaluated the use of body reserves, growth perf
Externí odkaz:
https://doaj.org/article/51a5f6b8d41c4b12bcfdbcddf21a8001
Autor:
Fabio A. C. Santos, Felipe S. Batista, André S. Souza, Gustavo S. C. Julio, Gisele C. Favero, José F. V. Junior, Sílvio T. Costa, Carla C. Zeppenfeld, Nadia H. Bianchini, Berta M. Heinzmann, Bernardo Baldisserotto, Ronald K. Luz
Publikováno v:
Fishes, Vol 8, Iss 10, p 509 (2023)
The present study evaluated different levels of the essential oil of Nectandra grandiflora (EONG) in the diet of juvenile Colossoma macropomum. The juveniles (0.75 ± 0.05 g) were fed four experimental diets with differing levels of EONG (0, 0.5, 0.7
Externí odkaz:
https://doaj.org/article/70e5c26c1cd54bf0b6cbcc6c333600e5
Autor:
LUÍS G. FIGUEIREDO, FABIO A.C. SANTOS, ISABELA F.A. TORRES, TULIO P. BOAVENTURA, RONALD K. LUZ
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 95, Iss 1 (2023)
Abstract The investigation of cultivation and management techniques that take into account behaviour and animal welfare becomes important due to their direct relationship with animal performance. This study aimed to classify juvenile Oreochromis nilo
Externí odkaz:
https://doaj.org/article/52565d55690e49c8bb96910e0cb5f8de
Autor:
DANIEL P. DA COSTA, MÁRCIO JOSÉ S. SILVA, RICARDO MARCELO GERALDI, JOÃO PAULO LORENZINI, CRISTIANO C. MATTIOLI, AFONSO DE LIGUORI OLIVEIRA, RONALD K. LUZ, KLEBER C. MIRANDA-FILHO
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 94, Iss suppl 4 (2022)
Abstract Aiming to test the capacity of retention of carotenoids in tissues, Lophiosilurus alexandri juveniles were fed diets containing 0, 25, 50, 100, 200, and 400 mg/kg of synthetic astaxanthin for 62 days. The inclusion of astaxanthin did not res
Externí odkaz:
https://doaj.org/article/16870b18a8024a3eb0dbebdbc65989cd
Autor:
Renata S. Farias, Bruno C. N. R. Silva, Wilka V. G. Nascimento, Gênison C. Silva, Ronald K. Luz, Francisco Prosdocimi, Rozzanno A. C. R. Figueiredo, Daniel C. Carvalho, Maria R. M. Coimbra
Publikováno v:
Neotropical Ichthyology, Vol 18, Iss 3 (2020)
Abstract Due to the ecological importance of Lophiosilurus alexandri, the present work evaluated its genetic representativeness by comparing wild stocks to broodstocks that were kept at three restocking hatcheries along the São Francisco River. A to
Externí odkaz:
https://doaj.org/article/b885284b87f44f4b8c250c042fb2be9e
Autor:
Léa S. Sant´Ana, Adriane A. Iwamoto, Daniel V. Crepaldi, Túlio P. Boaventura, Lilian V. Teixeira, Edgar A. Teixeira, Ronald K. Luz
Publikováno v:
Neotropical Ichthyology, Vol 17, Iss 4 (2019)
ABSTRACT Lophiosilurus alexandri is a carnivorous freshwater fish endemic of São Francisco basin and an endangered species. In this study, we analysed the chemical composition (moisture, protein, ash and lipid), fatty acid profile, and nutritional q
Externí odkaz:
https://doaj.org/article/9675f0491ec347b888c366f33b2b8378
Publikováno v:
Neotropical Ichthyology, Vol 17, Iss 1 (2019)
ABSTRACT This study tested an external tag for juveniles of Lophiosilurus alexandri and measured the effects of tagging in different size classes of fishes. Experiment 1 evaluated the retention rate and influence of the tag on survival and growth of
Externí odkaz:
https://doaj.org/article/1f7f37f8e0c145169de0475ef8829ac0
Autor:
ANA LUCIA SALARO, JOSÉ C. OLIVEIRA JUNIOR, FREDERICO W. LIMA, RENATO B. FERRAZ, MARCELO D. PONTES, DANIEL A.V. CAMPELO, JENER A.S. ZUANON, RONALD K. LUZ
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 87, Iss 4, Pp 2281-2287 (2015)
ABSTRACT The aim of this study was to evaluate commercial gelatin in the total replacement of bovine heart in feed training of "pacamã" Lophiosilurus alexandri in different water salinities. A completely randomized experimental design, in a 2 × 3 f
Externí odkaz:
https://doaj.org/article/36750869b53e41c5a6f85fb6350af4c0
Autor:
RONALD K. LUZ, MARIA CÉLIA PORTELLA
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 87, Iss 2, Pp 1125-1132 (2015)
The aim of this work was to investigate the effects of daily prey concentration during the first 15 days of active feeding of Hoplias lacerdae larvae, and the juvenile size on the feed training. In the first phase, the larvae received five Artemia na
Externí odkaz:
https://doaj.org/article/bf356010ae944287b95f5cf4e98a110a
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 87, Iss 1, Pp 529-535 (2015)
In aquaculture, activities with anesthetic compounds are usually used in order to ensure the welfare of farmed fish, allowing handling out of water with decreased trauma by stress. Presently, there is no information about anesthetic action of eugenol
Externí odkaz:
https://doaj.org/article/77b871c59fa149e6a16700d6a674ca4e