Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/1454
Título: Efeito materno e paterno sobre as taxas de fertilização e eclosão em curimba (Prochilodus lineatus)
Título(s) alternativo(s): Maternal and paternal effect on fertilization and haching rate in curimba (Prochilodus lineatus)
Palavras-chave: Peixe
Componentes da variância
Efeito parental
Índices reprodutivos
Fish
Variance components
Parental effect
Reproductive rates
Data do documento: 2012
Editor: Universidade Federal de Minas Gerais
Citação: ALLAMAN, I.B. et al. Efeito materno e paterno sobre as taxas de fertilização e eclosão em curimba (Prochilodus lineatus). Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v.64, n.6, p.1584-1590, 2012.
Resumo: The aim of this study was to evaluate how much females and males contribute to the total variation of reproductive traits such as fertilization and hatching rate in curimba Prochilodus lineatus. Cryopreserved semen from five males was used to fertilize eggs from six females in a cross-factorial 5x6, totaling 30 families. In addition to the reproductive characteristics of males and females, fertilization and hatching rates were evaluated for computation of maternal and paternal effects. The variance components were estimated by restricted maximum likelihood, and the Highest Posterior Density (HPD) intervals were estimated for each component. The female contributed more to the total variation than males for the fertilization and hatching rates. The female contributed 26.3% of the total variation in the fertilization rate against 8.9% of males. Regarding the hatching rate, the female contributed 11.9% versus 1.6% of males. Thus, there is maternal effect on rates of fertilization and hatching, and the paternal effect assessed individually was lackluster or even negligible.
URI: http://repositorio.ufla.br/jspui/handle/1/1454
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