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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
02/06/1998 |
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Data da última atualização: |
28/03/2017 |
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Autoria: |
BRISBIN JUNIOR, I. L.; WHITE, G. C.; BUSH, P. B. |
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Título: |
PCB intake and the growth of waterfowl: multivariate analyses based on a reparameterized Richards sigmoid model. |
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Ano de publicação: |
1986 |
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Fonte/Imprenta: |
Growth, v.50, p.1-11, 1986. |
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Idioma: |
Inglês |
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Conteúdo: |
Multivariate analyses of the parameters of a modified Richards growth model were used to determine the effects os sex and varving levels of dietary intake of PCB's (0-50 ppm), on the asymptotic size (Wx) total growing time (T) and shape (m) of the growth curves of game farm mallards (Anas platyrhynchos) and wild wood ducks (Alx sponsa) raised under laboratory conditions. Level of PCB intake did not affect any of the growth parameters of the wood ducks, while sex affected both m and Wx, with males of this species growing to grater body weights and showing slightly lower shape parameters than females. Growth characteristics of the mallards on the other hand, did not differ between the sexes. PCB intake however, had a significant effect on the shape of the mallard growth curve, but did not affect either Wx or T. All interactions between sex and PCB treatment level were non-significant in both species. The growth responses of game-farm mallards to PCB intake cannot be assumed to typif that of other wild waterfowl species without additional evidence from comparative studies. |
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Palavras-Chave: |
PCB's; Richards Sigmoid growth model; Waterfowl growth. |
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Thesagro: |
Ave Aquática; Curva de Crescimento. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01682naa a2200205 a 4500
001 1792606
005 2017-03-28
008 1986 bl --- 0-- u #d
100 1 $aBRISBIN JUNIOR, I. L.
245 $aPCB intake and the growth of waterfowl$bmultivariate analyses based on a reparameterized Richards sigmoid model.
260 $c1986
520 $aMultivariate analyses of the parameters of a modified Richards growth model were used to determine the effects os sex and varving levels of dietary intake of PCB's (0-50 ppm), on the asymptotic size (Wx) total growing time (T) and shape (m) of the growth curves of game farm mallards (Anas platyrhynchos) and wild wood ducks (Alx sponsa) raised under laboratory conditions. Level of PCB intake did not affect any of the growth parameters of the wood ducks, while sex affected both m and Wx, with males of this species growing to grater body weights and showing slightly lower shape parameters than females. Growth characteristics of the mallards on the other hand, did not differ between the sexes. PCB intake however, had a significant effect on the shape of the mallard growth curve, but did not affect either Wx or T. All interactions between sex and PCB treatment level were non-significant in both species. The growth responses of game-farm mallards to PCB intake cannot be assumed to typif that of other wild waterfowl species without additional evidence from comparative studies.
650 $aAve Aquática
650 $aCurva de Crescimento
653 $aPCB's
653 $aRichards Sigmoid growth model
653 $aWaterfowl growth
700 1 $aWHITE, G. C.
700 1 $aBUSH, P. B.
773 $tGrowth$gv.50, p.1-11, 1986.
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Registro original: |
Embrapa Pantanal (CPAP) |
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| Registros recuperados : 2 | |
| 2. |  | SOUSA, P. H. M. de; RAMOS, A. M.; BRITO, E. S. de; MAIA, G. A.; AZEREDO, H. M. C. de; PRADO, G. M. do; GONZAGA, M. L. da C. Use of mixture design to improve a tropical mixed fruit nectar. Boletim do Centro de Pesquisa de Processamento de Alimentos, Curitiba, v. 32, n. 2, p. 249-258, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| Registros recuperados : 2 | |
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