Absolute Fecundity
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Non-seasonal reproduction in inseminating species of Mimagoniates (Characidae, Characiformes) from southern Brazil
Abstract Some aspects of reproduction in two species of Mimagoniates, M. microlepis (Steindachner 1877) and M. rheocharis Menezes & Weitzman 1990 are herein described. Samples were taken monthly from January 1998 to February 1999 in two streams in the locality of Maquiné, Rio Grande do Sul, Brazil. Results from the analysis of hundreds of specimens of M. mi
Pap. Avulsos Zool.. Publicado em: 19/03/2018
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2. Reproductive performance of female Nile tilapia ( Oreochromis niloticus ) fed diets with different digestible energy levels
ABSTRACT This study aimed to evaluate the reproductive performance of female Nile tilapia (Oreochromis niloticus) fed diets containing different levels of digestible energy (DE). The fish were housed in 15 fiberglass tanks (500 L) in a recirculating system at an average temperature of 27.5 °C. The treatments consisted of five diets with increasing levels of
R. Bras. Zootec.. Publicado em: 2017-01
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3. Maternal age influences on reproductive rates in Nile tilapia (Oreochromis niloticus)
In this study we examined the effects of the maternal age on the fecundity (absolute and relative), egg production, and fertilization rates of Nile tilapia (Oreochromis niloticus). Females were divided into three groups: Group 1 (6 years old), Group 2 (3 years old), and Group 3 (8 months old). Males of eight months were used in all groups. Twice a week, the
R. Bras. Zootec.. Publicado em: 2015-04
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4. AvaliaÃÃo de desova induzida hormonalmente e qualidade dos ovos de ariacÃ, Lutjanus synagris (LINNAEUS, 1758) / Assessment of hormonally induced spawning and egg quality of ariacÃ, Lutjanus synagris (Linnaeus, 1758)
O presente estudo teve como objetivo avaliar a desova induzida hormonalmente e a qualidade dos ovos do ariacÃ, Lutjanus synagris. Foram avaliadas as fecundidades absoluta e relativa, o diÃmetro dos ovos e de suas respectivas gotÃculas de Ãleo, a porcentagem de ovos flutuantes, a taxa de fecundaÃÃo, a taxa de eclosÃo e sobrevivÃncia das larvas apÃs c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/11/2010
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5. Dinâmica reprodutiva de Oligosarcus jenynsii e O. robustus (Characiformes, Characidae) na Lagoa Fortaleza, Rio Grande do Sul, Brasil / Reproductive dynamics of Oligosarcus jenynsii and O. robustus (Characiformes, Characidae) in Fortaleza Lagoon, Rio Grande do Sul, Brazil
Oligosarcus jenynsii (Günther, 1864) and O. robustus Menezes, 1969 are fish species distributed in Rio Grande do Sul, Brazil, Uruguay, and northern Argentina. The reproductive period and recruitment, sex ratio, absolute and relative fecundity, and body length at first gonadal maturation of the two carnivorous species from Fortaleza Lagoon were analized. The
Publicado em: 2010
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6. Dinâmica reprodutiva de Oligosarcus jenynsii e O. robustus (Characiformes, Characidae) na lagoa Fortaleza, Rio Grande do Sul, Brasil
Oligosarcus jenynsii (Günther, 1864) and O. robustus Menezes, 1969 are fish species distributed in Rio Grande do Sul, Brazil, Uruguay, and northern Argentina. The reproductive period and recruitment, sex ratio, absolute and relative fecundity, and body length at first gonadal maturation of the two carnivorous species from Fortaleza Lagoon were analized. The
Iheringia. Série Zoologia. Publicado em: 2004-03
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7. Estratégia reprodutiva do peixe voador, Hirundichthys affinis Günther (Osteichthyes, Exocoetidae)
This study was carried out to investigate the reproductive aspects of the flying fish, Hirundichthys affinis Günther, 1866 considering their importance in the fish production of the Rio Grande do Norte State, Brazil. Fish samples were collected from the Municipality of Caiçara do Norte, northern coast of the state, during the period of April, 1999 to April
Revista Brasileira de Zoologia. Publicado em: 2002-09