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| PENHA,Diego dos Santos; SOUZA,Felipe Pinheiro de; LIMA,Ed Christian Suzuki de; URREA-ROJAS,Angela Maria; PANDOLFI,Victor César Freitas; YAMACHITA,Andrei Lincoln; POVH,Jayme Aparecido; LEITE,Natalia Gonçalves; PEREIRA,Ulisses de Pádua; LOPERA-BARRERO,Nelson Mauricio. |
| ABSTRACT The genusBryconcomprises fish species of significant socioeconomic and biological importance in Brazil. Despite that, the genetic knowledge about these species is scarce, especially regardingBrycon falcatus. Thus, the objective of this study was to evaluate the transferability of heterologous microsatellite primers inB. falcatus for the first time. Heterologous primers obtained from B. opalinus, B. hilarii, B. insignis, B. orbignyanus, B. amazonicus, Prochilodus argenteus, Prochilodus lineatus, Piaractus mesopotamicus, and Colossoma macropomum were evaluated. The primers that showed the best amplification patterns were applied to a sample of 22 individuals and the genetic parameters were calculated. Nine primers displayed satisfactory... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bryconidae; Cross amplification; Genetic conservation; Genetic variability; SSR. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300232 |
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| SILVA,Ana Carla Carvalho; BARROS,Adriana Fernandes de; MENDONÇA,Flávia Maria Fernandes; GAMA,Kamyla Fernanda da Silva; MARCOS,Rebeca; POVH,Jayme Aparecido; FORNARI,Darci Carlos; HOSHIBA,Márcio Aquio; ABREU,Janessa Sampaio de. |
| ABSTRACT Tambaqui, Colossoma macropomum, is one of the most produced species in Brazilian fish farming, which has boosted the development of new technologies to increase its productivity. The aim of this study was to evaluate production performance in two second-generation tambaqui stocks selectively bred for weight gain in a semi-intensive rearing system and assess its influence on total production cost. We analyzed 300 fish (initial mean weight and standard length of 160 g and 17 cm, respectively) of two families (A and B, 150 fish each). The fish were individually marked with microchips and stocked in an 800-m2 excavated pond. For economic analysis, the obtained performance data were extrapolated for a fish farm with a 10-ha pond, adopting the Total... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquaculture productivity; Breeding; Fish farming; Production cost; Native Brazilian fish. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200108 |
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