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| Navarro,Fernanda Keley Silva Pereira; Navarro,Rodrigo Diana; Murgas,Luis David Solis; Felizardo,Viviane de Oliveira. |
| Some studies and scientific investments have been done in aquaculture aiming to minimize the stress of the fish due to different factors, as management, nutritional status, water quality, temperature, photoperiod, and salinity. This study aimed to verify the effect of photoperiod on locomotor activity and plasma levels of cortisol and glucose in female Lambari. One hundred and twenty female Lambari adult were maintained in aquaria of 20 liters each in a completely randomized design with three treatments (T1 = 0Light: 24Dark, T2 = 12L: 12D, T3 = 24L: 0D) and four replications. The daily locomotor activity was registered during 15 days using an infrared photocell. After 40 days of experiment and previous fasting for 24 hours, fish were euthanized by a lethal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish; Synchronizer; Glucose; Cortisol; Swimming behaviour. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000200008 |
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| Gonçalves,Antônio Carlos Silveira; Murgas,Luis David Solis; Rosa,Priscila Vieira e; Navarro,Rodrigo Diana; Costa,Diego Vicente da; Teixeira,Edgar de Alencar. |
| O objetivo deste trabalho foi avaliar os efeitos da suplementação da dieta de tambacus com concentrações de vitamina E sobre variáveis de desempenho e hematológicas, bem como determinar a relação da atividade da glutationa peroxidase com a inclusão de vitamina E e selênio na dieta. Foram utilizados 250 juvenis de tambacu, divididos em 25 aquários. A dieta basal constituiu-se de ração peletizada com 32% de proteína bruta e 3.300 kcal kg-1 de energia digestível, e inclusão de 0,40 mg kg-1 de Se. As dietas-teste - isoprotéicas e isoenergéticas - foram compostas da dieta basal com diferentes concentrações de vitamina E (0, 100, 200, 300, 400 mg kg-1), em delineamento inteiramente ao acaso, com cinco tratamentos e cinco repetições. Não foi observado efeito... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colossoma macropomum; Piaractus mesopotamicus; Enzimologia; Hematologia; Tocoferol. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010000900010 |
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| Navarro,Fernanda Keley Silva Pereira; Navarro,Rodrigo Diana; Murgas,Luis David Solis; Pereira,Marina Apocalypse Nogueira; Hundley,Guilherme Crispim. |
| The objective of this work was to evaluate the effect of photoperiod on luteinizing hormone (LH) plasma levels and gonadal maturation of lambari females. One hundred and twenty adult lambaris, distributed into 12 aquaria of 20 L each, were randomly subjected to three different treatments, in a completely randomized design, and four replicates. Treatments were photoperiods in hours of light (L) and darkness (D): T1, 0 L:24 D; T2, 12 L:12 D; T3, 24 L:0 D. After 40 days, fish were subjected to fasting for 24 hours and, then, anesthetized. Immediately after slaughter, fish were weighed, and their gonads and livers were removed and weighed. Ovaries were weighed and immersed in Bouin's fixative solution for 24 hours and, then, kept in 70% alcohol until... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Astyanax bimaculatus; Native species; Gonadosomatic index; Hepatosomatic index; Oogenesis. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000800039 |
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