| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Ocidental. Para informações adicionais entre em contato com cpaa.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amazônia Ocidental. |
|
Data corrente: |
13/07/2006 |
|
Data da última atualização: |
06/01/2015 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
GOMES, L. de C.; CHAGAS, E. C.; MARTINS-JUNIOR, H.; ROUBACH, R.; ONO, E. A.; LOURENÇO, J. N. de P. |
|
Afiliação: |
Levy de Carvalho Gomes, CPAA; Edsandra Campos Chagas, CPAA; Heitor Martins-Junior, Inpa; Rodrigo Roubach, Inpa; Eduardo Akifumi Ono, Inpa; José Nestor de Paula Lourenço, CPAA. |
|
Título: |
Cage culture of tambaqui (Colossoma macropomum) in a central Amazon floodplain lake. |
|
Ano de publicação: |
2006 |
|
Fonte/Imprenta: |
Aquaculture, v. 253, n. 1-4, p. 374-384, mar. 2006. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Tambaqui, Colossoma macropomum, a native fish species of the Amazon basin, has been tested in cages placed in floodplain lakes with promising results. The present study evaluated culture performance and economic feasibility of tambaqui raised at different stocking densities in cages placed in a central Amazon floodplain lake. Fish were stocked in triplicate 6-m(3) cages at 20, 30, 40 and 50 fish/m(3). Fish were fed a 34% crude protein (CP) extruded feed six days a week during the first two months and a 28% CP extruded feed for six months. The experiment lasted for 240 days. Mean survival rates were over 97% and were not significantly affected by fish density. Tambaqui growth rate and weight gain were not affected by the tested densities. Fish growth rate did not decline during the culture period, indicating that fish carrying capacity per cage was not reached. Fish hematological parameters, as well as, glucose, cortisol and ions did not show significant differences among the four tested densities. Fish raised at 40 and 50 fish/m(3) had significantly lower feed conversion ratio (FCR) than fish stocked at 20 or 30 fish/m(3). FCR presented an inverse relationship to stocking density with lower FCR at higher densities. Economic sensitivity analysis showed that economic performance of tambaqui raised in cages is more sensitive to sale price then to feed cost. To increase fish yield/m(3), higher stocking densities should be tested. |
|
Thesagro: |
Análise Econômica; Colossoma Macropomum; Crescimento; Fisiologia; Ganho de Peso; Peixe de Água Doce; Rendimento; Tambaqui. |
|
Thesaurus Nal: |
Amazonia. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02240naa a2200289 a 4500
001 1678457
005 2015-01-06
008 2006 bl uuuu u00u1 u #d
100 1 $aGOMES, L. de C.
245 $aCage culture of tambaqui (Colossoma macropomum) in a central Amazon floodplain lake.
260 $c2006
520 $aTambaqui, Colossoma macropomum, a native fish species of the Amazon basin, has been tested in cages placed in floodplain lakes with promising results. The present study evaluated culture performance and economic feasibility of tambaqui raised at different stocking densities in cages placed in a central Amazon floodplain lake. Fish were stocked in triplicate 6-m(3) cages at 20, 30, 40 and 50 fish/m(3). Fish were fed a 34% crude protein (CP) extruded feed six days a week during the first two months and a 28% CP extruded feed for six months. The experiment lasted for 240 days. Mean survival rates were over 97% and were not significantly affected by fish density. Tambaqui growth rate and weight gain were not affected by the tested densities. Fish growth rate did not decline during the culture period, indicating that fish carrying capacity per cage was not reached. Fish hematological parameters, as well as, glucose, cortisol and ions did not show significant differences among the four tested densities. Fish raised at 40 and 50 fish/m(3) had significantly lower feed conversion ratio (FCR) than fish stocked at 20 or 30 fish/m(3). FCR presented an inverse relationship to stocking density with lower FCR at higher densities. Economic sensitivity analysis showed that economic performance of tambaqui raised in cages is more sensitive to sale price then to feed cost. To increase fish yield/m(3), higher stocking densities should be tested.
650 $aAmazonia
650 $aAnálise Econômica
650 $aColossoma Macropomum
650 $aCrescimento
650 $aFisiologia
650 $aGanho de Peso
650 $aPeixe de Água Doce
650 $aRendimento
650 $aTambaqui
700 1 $aCHAGAS, E. C.
700 1 $aMARTINS-JUNIOR, H.
700 1 $aROUBACH, R.
700 1 $aONO, E. A.
700 1 $aLOURENÇO, J. N. de P.
773 $tAquaculture$gv. 253, n. 1-4, p. 374-384, mar. 2006.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
|
Data corrente: |
30/11/2021 |
|
Data da última atualização: |
30/11/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
RAMOS-GONZÁLEZ, P. L.; PONS, T.; CHABI-JESUS, C.; ARENA, G. D.; ASTUA, J. de F. |
|
Afiliação: |
PEDRO L. RAMOS-GONZÁLEZ, Instituto Biológico de São Paulo; TIRSO PONS, CNB-CSIC; CAMILA CHABI-JESUS, Instituto Biológico de São Paulo; GABRIELLA DIAS ARENA, Instituto Biológico de São Paulo; JULIANA DE FREITAS ASTUA, CNPMF. |
|
Título: |
Poorly conserved p15 proteins of cileviruses retain elements of common ancestry and putative functionality: a theoretical assessment on the evolution of cilevirus genomes. |
|
Ano de publicação: |
2021 |
|
Fonte/Imprenta: |
Frontiers in Plant Science, November, 2021. |
|
ISSN: |
1664-462X |
|
DOI: |
https://doi.org/10.3389/fpls.2021.771983 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The genus Cilevirus groups enveloped single-stranded (+) RNA virus members of the family Kitaviridae, order Martellivirales. Proteins P15, scarcely conserved polypeptides encoded by cileviruses, have no apparent homologs in public databases. Accordingly, the open reading frames (ORFs) p15, located at the 5?-end of the viral RNA2 molecules, are considered orphan genes (ORFans). In this study, we have delved into ORFs p15 and the relatively poorly understood biochemical properties of the proteins P15 to posit their importance for viruses across the genus and theorize on their origin. We detected that the ORFs p15 are under purifying selection and that, in some viral strains, the use of synonymous codons is biased, which might be a sign of adaptation to their plant hosts. Despite the high amino acid sequence divergence, proteins P15 show the conserved motif [FY]-L-x(3)-[FL]-H-x-x-[LIV]-S-C-x-C-x(2)-C-x-G-x-C, which occurs exclusively in members of this protein family. Proteins P15 also show a common predicted 3D structure that resembles the helical scaffold of the protein ORF49 encoded by radinoviruses and the phosphoprotein C-terminal domain of mononegavirids. Based on the 3D structural similarities of P15, we suggest elements of common ancestry, conserved functionality, and relevant amino acid residues. We conclude by postulating a plausible evolutionary trajectory of ORFans p15 and the 5?-end of the RNA2 of cileviruses considering both protein fold superpositions and comparative genomic analyses with the closest kitaviruses, negeviruses, nege/kita-like viruses, and unrelated viruses that share the ecological niches of cileviruses. MenosThe genus Cilevirus groups enveloped single-stranded (+) RNA virus members of the family Kitaviridae, order Martellivirales. Proteins P15, scarcely conserved polypeptides encoded by cileviruses, have no apparent homologs in public databases. Accordingly, the open reading frames (ORFs) p15, located at the 5?-end of the viral RNA2 molecules, are considered orphan genes (ORFans). In this study, we have delved into ORFs p15 and the relatively poorly understood biochemical properties of the proteins P15 to posit their importance for viruses across the genus and theorize on their origin. We detected that the ORFs p15 are under purifying selection and that, in some viral strains, the use of synonymous codons is biased, which might be a sign of adaptation to their plant hosts. Despite the high amino acid sequence divergence, proteins P15 show the conserved motif [FY]-L-x(3)-[FL]-H-x-x-[LIV]-S-C-x-C-x(2)-C-x-G-x-C, which occurs exclusively in members of this protein family. Proteins P15 also show a common predicted 3D structure that resembles the helical scaffold of the protein ORF49 encoded by radinoviruses and the phosphoprotein C-terminal domain of mononegavirids. Based on the 3D structural similarities of P15, we suggest elements of common ancestry, conserved functionality, and relevant amino acid residues. We conclude by postulating a plausible evolutionary trajectory of ORFans p15 and the 5?-end of the RNA2 of cileviruses considering both protein fold superpositions and compara... Mostrar Tudo |
|
Thesagro: |
Genoma; Proteína; Vírus. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/228280/1/2021-p15-Ramos-Gonzalez-fpls-12-771983.pdf
|
|
Marc: |
LEADER 02406naa a2200229 a 4500
001 2136833
005 2021-11-30
008 2021 bl uuuu u00u1 u #d
022 $a1664-462X
024 7 $ahttps://doi.org/10.3389/fpls.2021.771983$2DOI
100 1 $aRAMOS-GONZÁLEZ, P. L.
245 $aPoorly conserved p15 proteins of cileviruses retain elements of common ancestry and putative functionality$ba theoretical assessment on the evolution of cilevirus genomes.$h[electronic resource]
260 $c2021
520 $aThe genus Cilevirus groups enveloped single-stranded (+) RNA virus members of the family Kitaviridae, order Martellivirales. Proteins P15, scarcely conserved polypeptides encoded by cileviruses, have no apparent homologs in public databases. Accordingly, the open reading frames (ORFs) p15, located at the 5?-end of the viral RNA2 molecules, are considered orphan genes (ORFans). In this study, we have delved into ORFs p15 and the relatively poorly understood biochemical properties of the proteins P15 to posit their importance for viruses across the genus and theorize on their origin. We detected that the ORFs p15 are under purifying selection and that, in some viral strains, the use of synonymous codons is biased, which might be a sign of adaptation to their plant hosts. Despite the high amino acid sequence divergence, proteins P15 show the conserved motif [FY]-L-x(3)-[FL]-H-x-x-[LIV]-S-C-x-C-x(2)-C-x-G-x-C, which occurs exclusively in members of this protein family. Proteins P15 also show a common predicted 3D structure that resembles the helical scaffold of the protein ORF49 encoded by radinoviruses and the phosphoprotein C-terminal domain of mononegavirids. Based on the 3D structural similarities of P15, we suggest elements of common ancestry, conserved functionality, and relevant amino acid residues. We conclude by postulating a plausible evolutionary trajectory of ORFans p15 and the 5?-end of the RNA2 of cileviruses considering both protein fold superpositions and comparative genomic analyses with the closest kitaviruses, negeviruses, nege/kita-like viruses, and unrelated viruses that share the ecological niches of cileviruses.
650 $aGenoma
650 $aProteína
650 $aVírus
700 1 $aPONS, T.
700 1 $aCHABI-JESUS, C.
700 1 $aARENA, G. D.
700 1 $aASTUA, J. de F.
773 $tFrontiers in Plant Science, November, 2021.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
