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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Ocidental. Para informações adicionais entre em contato com cpaa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Pesca e Aquicultura. |
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Data corrente: |
17/04/2012 |
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Data da última atualização: |
13/11/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MELO, J. F. B.; LUNDSTEDT, L. M.; MORAES, G.; INOUE, L. A. K. A. |
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Afiliação: |
J. F. B. MELO, UNIVERSIDADE FEDERAL DO VALE DO SÃO FRANCISCO; LICIA MARIA LUNDSTEDT, CNPASA; G. MORAES, UNIVERSIDADE FEDERAL DE SÃO CARLOS; LUIS ANTONIO KIOSHI AOKI INOUE, CPAA. |
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Título: |
Effect of different concentrations of protein on the digestive system of juvenile silver catfish. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 64, n. 2, p. 450-457, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
Aspects of digestion in juvenile silver catfish Rhamdia quelen fed with four levels of protein (20, 27, 34 and 41%) were studied. The studied traits were digestive enzymes (nonspecific proteases, trypsin, chymotrypsin, amylase and lipase) and weight gain. The experiment lasted 60 days; 160 juvenile catfish with initial body weight of 32 grams were transferred to the experimental system of 500L tanks with re-circulated and thermostatized water. The average weight of silver catfish increased with dietary protein and 41% of crude protein (CP) was accepted as the best one. Gastric protease activity increases with the CP level. The intestinal alkaline protease reached the peak at 27% CP and the highest activities were observed in the anterior section of the gut (AS). The trypsin peak was observed at 34% CP in the AS and medium section of the gut (MS). Amylase and lipase activities were inverse to the dietary CP and the highest values were observed in AS. In conclusion, the digestive enzymes of catfishes are responsive to the dietary protein level. The dietary CP required for highest weight gain of juvenile silver catfish is 41%. |
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Palavras-Chave: |
Enzimas digestivas. |
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Thesagro: |
Enzima digestiva; Nutrição Animal; Peixe; Rhamdia quelen. |
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Categoria do assunto: |
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L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01816naa a2200217 a 4500
001 1922891
005 2012-11-13
008 2012 bl uuuu u00u1 u #d
100 1 $aMELO, J. F. B.
245 $aEffect of different concentrations of protein on the digestive system of juvenile silver catfish.
260 $c2012
520 $aAspects of digestion in juvenile silver catfish Rhamdia quelen fed with four levels of protein (20, 27, 34 and 41%) were studied. The studied traits were digestive enzymes (nonspecific proteases, trypsin, chymotrypsin, amylase and lipase) and weight gain. The experiment lasted 60 days; 160 juvenile catfish with initial body weight of 32 grams were transferred to the experimental system of 500L tanks with re-circulated and thermostatized water. The average weight of silver catfish increased with dietary protein and 41% of crude protein (CP) was accepted as the best one. Gastric protease activity increases with the CP level. The intestinal alkaline protease reached the peak at 27% CP and the highest activities were observed in the anterior section of the gut (AS). The trypsin peak was observed at 34% CP in the AS and medium section of the gut (MS). Amylase and lipase activities were inverse to the dietary CP and the highest values were observed in AS. In conclusion, the digestive enzymes of catfishes are responsive to the dietary protein level. The dietary CP required for highest weight gain of juvenile silver catfish is 41%.
650 $aEnzima digestiva
650 $aNutrição Animal
650 $aPeixe
650 $aRhamdia quelen
653 $aEnzimas digestivas
700 1 $aLUNDSTEDT, L. M.
700 1 $aMORAES, G.
700 1 $aINOUE, L. A. K. A.
773 $tArquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte$gv. 64, n. 2, p. 450-457, 2012.
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Registro original: |
Embrapa Pesca e Aquicultura (CNPASA) |
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Biblioteca |
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Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
23/09/2013 |
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Data da última atualização: |
04/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
BUENO, A. F.; PAULA-MORAES, S. V.; GAZZONI, D. L.; POMARI, A. F. |
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Afiliação: |
ADENEY DE FREITAS BUENO, CNPSO; SILVANA VIEIRA DE PAULA MORAES, CPAC; DECIO LUIZ GAZZONI, CNPSO; ALINE FARHAT POMARI, USP. |
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Título: |
Economic thresholds in soybean-integrated pest management: old concepts, current adoption, and adequacy. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Neotropical Entomology, v. 42, n. 5, p. 439-447, Oct. 2013. |
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DOI: |
DOI 10.1007/s13744-013-0167-8 |
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Idioma: |
Inglês |
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Conteúdo: |
Increasing global demands for food underline the need for higher crop yields. The relatively low costs of the most commonly used insecticides in combination with increasing soybean market prices led growers and technical advisors to debate the adequacy of recommended economic thresholds (ETs). The adoption of ETs and pest sampling has diminished in Brazil, leading to excessive pesticide use on soybean. The reduced efficacy of natural biological control, faster pest resurgence, and environment contamination are among the side-effects of pesticide abuse. To address these problems and maximize agricultural production, pest control programs must be guided by a proper integrated pest management (IPM) approach, including the ET concept. Therefore, the most appropriate time to initiate insecticide spraying in soybean is indicated by the available ETs which are supported by experiments over the last 40 years in different edapho-climatic conditions and regions with distinct soybean cultivars. Published scientific data indicate that preventive insecticide use is an expensive and harmful use of chemicals that increases the negative impact of pesticides in agroecosystems. However, the established ETs are for a limited number of species (key pests), and they only address the use of chemicals. There is a lack of information regarding secondary pests and other control strategies in addition to insecticides. It is clear then that much progress is still needed to improve ETs for pest management decisions. Nevertheless, using the current ETs provides a basis for reducing the use of chemicals in agriculture without reducing yields and overall production, thereby improving sustainability. MenosIncreasing global demands for food underline the need for higher crop yields. The relatively low costs of the most commonly used insecticides in combination with increasing soybean market prices led growers and technical advisors to debate the adequacy of recommended economic thresholds (ETs). The adoption of ETs and pest sampling has diminished in Brazil, leading to excessive pesticide use on soybean. The reduced efficacy of natural biological control, faster pest resurgence, and environment contamination are among the side-effects of pesticide abuse. To address these problems and maximize agricultural production, pest control programs must be guided by a proper integrated pest management (IPM) approach, including the ET concept. Therefore, the most appropriate time to initiate insecticide spraying in soybean is indicated by the available ETs which are supported by experiments over the last 40 years in different edapho-climatic conditions and regions with distinct soybean cultivars. Published scientific data indicate that preventive insecticide use is an expensive and harmful use of chemicals that increases the negative impact of pesticides in agroecosystems. However, the established ETs are for a limited number of species (key pests), and they only address the use of chemicals. There is a lack of information regarding secondary pests and other control strategies in addition to insecticides. It is clear then that much progress is still needed to improve ETs for pest managem... Mostrar Tudo |
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Palavras-Chave: |
Manejo integrado de pragas. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/90003/1/art-10.1007-s13744-013-0167-8.pdf
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Marc: |
LEADER 02297naa a2200181 a 4500
001 1966904
005 2022-04-04
008 2013 bl uuuu u00u1 u #d
024 7 $aDOI 10.1007/s13744-013-0167-8$2DOI
100 1 $aBUENO, A. F.
245 $aEconomic thresholds in soybean-integrated pest management$bold concepts, current adoption, and adequacy.$h[electronic resource]
260 $c2013
520 $aIncreasing global demands for food underline the need for higher crop yields. The relatively low costs of the most commonly used insecticides in combination with increasing soybean market prices led growers and technical advisors to debate the adequacy of recommended economic thresholds (ETs). The adoption of ETs and pest sampling has diminished in Brazil, leading to excessive pesticide use on soybean. The reduced efficacy of natural biological control, faster pest resurgence, and environment contamination are among the side-effects of pesticide abuse. To address these problems and maximize agricultural production, pest control programs must be guided by a proper integrated pest management (IPM) approach, including the ET concept. Therefore, the most appropriate time to initiate insecticide spraying in soybean is indicated by the available ETs which are supported by experiments over the last 40 years in different edapho-climatic conditions and regions with distinct soybean cultivars. Published scientific data indicate that preventive insecticide use is an expensive and harmful use of chemicals that increases the negative impact of pesticides in agroecosystems. However, the established ETs are for a limited number of species (key pests), and they only address the use of chemicals. There is a lack of information regarding secondary pests and other control strategies in addition to insecticides. It is clear then that much progress is still needed to improve ETs for pest management decisions. Nevertheless, using the current ETs provides a basis for reducing the use of chemicals in agriculture without reducing yields and overall production, thereby improving sustainability.
653 $aManejo integrado de pragas
700 1 $aPAULA-MORAES, S. V.
700 1 $aGAZZONI, D. L.
700 1 $aPOMARI, A. F.
773 $tNeotropical Entomology$gv. 42, n. 5, p. 439-447, Oct. 2013.
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Registro original: |
Embrapa Soja (CNPSO) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
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Registro completo
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Biblioteca(s): |
Catálogo Coletivo de Periódicos Embrapa; Embrapa Acre; Embrapa Caprinos e Ovinos; Embrapa Gado de Corte; Embrapa Suínos e Aves. |
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Identificador: |
123 |
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Data corrente: |
09/05/2002 |
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Data da última atualização: |
04/05/2015 |
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Código do título: |
1600010 |
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ISSN: |
0065-1699 |
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Código CCN: |
001216-5 |
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Título e Subtítulo: |
ACTA VETERINARIA SCANDINAVICA . SUPPLEMENTUM |
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Entidade: |
Societatum Veteranariarum Scandinivacarum |
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Local de publicação: |
Kobenhavn, DK |
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Periodicidade: |
Outras |
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Inicio de publicação: |
1961 |
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Coleções da unidade: |
Embrapa Acre
1980 (72-75); 1981 (76-77); 1982 (78-79); 1985 (80-81); 1988 (83-85); 1989 (86); 1991 (supl 87)
Classificação: 636.08905
Embrapa Caprinos e Ovinos
1975 (53,58-59); 1976 (60); 1977 (62-66); 1978 (67-69); 1979 (70-71); 1980 (73-75); 1981 (76-77); 1982 (79); 1985(80-81); 1988 (83); 1989 (85-86); 1992 (88); 1992 (89);
Embrapa Gado de Corte
1974 (48,51); 1975 (53); 1977 (62-66); 1978 (67-69); 1979 (70-71) 1980 (72-75); 1981 (76-77); 1982 (78-79); 1985 (80-81); 1988 (83-84); 1989 85-86); 1991 (87); 1996 (90)
Classificação: 636.08905
Embrapa Suínos e Aves
1971(33-36); 1972(39-40); 1973(41-45); 1974(50-52); 1975(53-54,56-57,59); 1977(62-66); 1978(67-69); 1979(70-71); 1980(72-75); 1981(76-77); 1982(78-79); 1985(80-81); 1988(83-84); 1989(85-86); 1991(87); 1996(90)
Classificação: 636.08905 |
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