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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
18/02/2016 |
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Data da última atualização: |
13/09/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FAGERIA, N. K.; SANTOS, A. B. dos. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF; ALBERTO BAETA DOS SANTOS, CNPAF. |
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Título: |
Agronomic evaluation of lowland rice genotypes for potassium-use efficiency. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, New York, v. 46, n. 11, p. 1327-1344, 2015. |
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DOI: |
10.1080/00103624.2015.1033535 |
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Idioma: |
Inglês |
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Conteúdo: |
Lowland rice is an important crop for humans, and information on potassium (K)?use efficiency for this crop is limited. A greenhouse experiment was conducted to evaluate agronomic characteristics of 12 lowland rice genotypes for K utilization. The K levels used were 0 mg kg−1 (low, natural level of soil) and 300 mg kg−1 (high). Plant height, straw yield, grain yield, panicle number, grain harvest index, 1000-grain weight, and spikelet sterility were significantly affected by K and genotypes treatments. The K × genotype interactions were significant for most of these growth, yield, and yield components, indicating that genotypes responded differently under two K rates. Furthermore, selection is possible for low as well as high K rates for lowland rice genotypes. Contribution of growth and yield components and agronomic efficiency in improving grain yield was in the order of agronomic efficiency > grain harvest index> 1000-grain weight > panicle number > shoot dry weight. There was significant decrease in soil K at harvest at low as well as at high K levels, indicating greater K requirements for lowland rice genotypes. Further, rice genotypes were significantly different in uptake and utilization of P, K, Al, and H+Al, as indicated by soil analysis at harvest. |
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Thesagro: |
Arroz; Genótipo; Oryza sativa; Potássio; Raíz. |
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Thesaurus Nal: |
Grain yield; Rice; Roots; Yield components. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02031naa a2200253 a 4500
001 2037507
005 2019-09-13
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1080/00103624.2015.1033535$2DOI
100 1 $aFAGERIA, N. K.
245 $aAgronomic evaluation of lowland rice genotypes for potassium-use efficiency.$h[electronic resource]
260 $c2015
520 $aLowland rice is an important crop for humans, and information on potassium (K)?use efficiency for this crop is limited. A greenhouse experiment was conducted to evaluate agronomic characteristics of 12 lowland rice genotypes for K utilization. The K levels used were 0 mg kg−1 (low, natural level of soil) and 300 mg kg−1 (high). Plant height, straw yield, grain yield, panicle number, grain harvest index, 1000-grain weight, and spikelet sterility were significantly affected by K and genotypes treatments. The K × genotype interactions were significant for most of these growth, yield, and yield components, indicating that genotypes responded differently under two K rates. Furthermore, selection is possible for low as well as high K rates for lowland rice genotypes. Contribution of growth and yield components and agronomic efficiency in improving grain yield was in the order of agronomic efficiency > grain harvest index> 1000-grain weight > panicle number > shoot dry weight. There was significant decrease in soil K at harvest at low as well as at high K levels, indicating greater K requirements for lowland rice genotypes. Further, rice genotypes were significantly different in uptake and utilization of P, K, Al, and H+Al, as indicated by soil analysis at harvest.
650 $aGrain yield
650 $aRice
650 $aRoots
650 $aYield components
650 $aArroz
650 $aGenótipo
650 $aOryza sativa
650 $aPotássio
650 $aRaíz
700 1 $aSANTOS, A. B. dos
773 $tCommunications in Soil Science and Plant Analysis, New York$gv. 46, n. 11, p. 1327-1344, 2015.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
10/11/2020 |
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Data da última atualização: |
10/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SANTOS, R. O. F. dos; BASSI, L. S.; SCHRAMM, V. G.; ROCHA, C. da; DAHLKE, F.; KRABBE, E. L.; MAIORKA, A. |
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Afiliação: |
RONAN OMAR FERNANDES DOS SANTOS, UFPR; LUCAS SCHMIDT BASSI, UFPR; VINÍCUIS GONSALES SCHRAMM, UFPR; CHAIANE DA ROCHA, UFPR; FABIANO DAHLKE, UFSC; EVERTON LUIS KRABBE, CNPSA; ALEX MAIORKA, UFPR. |
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Título: |
Effect of conditioning temperature and retention time on pellet quality, ileal digestibility, and growth performance of broiler chickens. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Livestock Science, v. 240, 2020. |
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DOI: |
https://doi.org/10.1016/j.livsci.2020.104110 |
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Idioma: |
Português |
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Conteúdo: |
Abstract: Eight broiler chicken diets were produced by using 2 pellet conditioning temperatures (65 and 85°C) and 4 pellet retention times in the conditioner (3, 9, 14, and 20 s). The effect of dietary treatments on pellet physical quality (intact pellet percentage, pellet hardness, pellet durability index, and water activity), growth performance (0 to 21 and 0 to 42 d), apparent ileal digestibility (CAID) of dry matter, crude protein and starch, and ileal digestible energy (IDE) was evaluated. 1,536 broiler chickens were randomly assigned to 8 dietary treatments (8 replicates of 24 chickens each). On d 42, 2 chickens per replicate were randomly selected for ileal content collection to evaluate dietary CAID and IDE. The greater conditioning temperature (85°C) improved pellet percentage, durability, and hardness (P< 0.001), and promoted greater feed intake, but also increased feed conversion by 1.2% (0 to 42 d, P < 0.05). The retention time of 20 s enhanced both weight gain and feed conversion (P < 0.05). Multiple interactions were observed for digestibility traits (P < 0.001). At 65°C, CAID of dry matter, crude protein and starch, and IDE increased with longer retention times. However, all digestibility coefficients and IDE decreased when diet was conditioned at 85°C and retained for more than 9 s. In conclusion, conditioning at 85°C with longer retention times improved pellet physical quality, but reduced digestibility traits and growth performance of broiler chickens. However, conditioning at 65°C with retention times shorter than 14 s also had detrimental effects on ileal nutrient digestibility, digestible energy, and growth performance. MenosAbstract: Eight broiler chicken diets were produced by using 2 pellet conditioning temperatures (65 and 85°C) and 4 pellet retention times in the conditioner (3, 9, 14, and 20 s). The effect of dietary treatments on pellet physical quality (intact pellet percentage, pellet hardness, pellet durability index, and water activity), growth performance (0 to 21 and 0 to 42 d), apparent ileal digestibility (CAID) of dry matter, crude protein and starch, and ileal digestible energy (IDE) was evaluated. 1,536 broiler chickens were randomly assigned to 8 dietary treatments (8 replicates of 24 chickens each). On d 42, 2 chickens per replicate were randomly selected for ileal content collection to evaluate dietary CAID and IDE. The greater conditioning temperature (85°C) improved pellet percentage, durability, and hardness (P< 0.001), and promoted greater feed intake, but also increased feed conversion by 1.2% (0 to 42 d, P < 0.05). The retention time of 20 s enhanced both weight gain and feed conversion (P < 0.05). Multiple interactions were observed for digestibility traits (P < 0.001). At 65°C, CAID of dry matter, crude protein and starch, and IDE increased with longer retention times. However, all digestibility coefficients and IDE decreased when diet was conditioned at 85°C and retained for more than 9 s. In conclusion, conditioning at 85°C with longer retention times improved pellet physical quality, but reduced digestibility traits and growth performance of broiler chickens. Howe... Mostrar Tudo |
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Palavras-Chave: |
Conditioning time; Desempenho de crescimento. |
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Thesagro: |
Digestibilidade; Frango de Corte. |
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Thesaurus NAL: |
Broiler chickens; Digestibility; Feed formulation; Growth performance; Pellets. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02640naa a2200313 a 4500
001 2126443
005 2020-11-10
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.livsci.2020.104110$2DOI
100 1 $aSANTOS, R. O. F. dos
245 $aEffect of conditioning temperature and retention time on pellet quality, ileal digestibility, and growth performance of broiler chickens.$h[electronic resource]
260 $c2020
520 $aAbstract: Eight broiler chicken diets were produced by using 2 pellet conditioning temperatures (65 and 85°C) and 4 pellet retention times in the conditioner (3, 9, 14, and 20 s). The effect of dietary treatments on pellet physical quality (intact pellet percentage, pellet hardness, pellet durability index, and water activity), growth performance (0 to 21 and 0 to 42 d), apparent ileal digestibility (CAID) of dry matter, crude protein and starch, and ileal digestible energy (IDE) was evaluated. 1,536 broiler chickens were randomly assigned to 8 dietary treatments (8 replicates of 24 chickens each). On d 42, 2 chickens per replicate were randomly selected for ileal content collection to evaluate dietary CAID and IDE. The greater conditioning temperature (85°C) improved pellet percentage, durability, and hardness (P< 0.001), and promoted greater feed intake, but also increased feed conversion by 1.2% (0 to 42 d, P < 0.05). The retention time of 20 s enhanced both weight gain and feed conversion (P < 0.05). Multiple interactions were observed for digestibility traits (P < 0.001). At 65°C, CAID of dry matter, crude protein and starch, and IDE increased with longer retention times. However, all digestibility coefficients and IDE decreased when diet was conditioned at 85°C and retained for more than 9 s. In conclusion, conditioning at 85°C with longer retention times improved pellet physical quality, but reduced digestibility traits and growth performance of broiler chickens. However, conditioning at 65°C with retention times shorter than 14 s also had detrimental effects on ileal nutrient digestibility, digestible energy, and growth performance.
650 $aBroiler chickens
650 $aDigestibility
650 $aFeed formulation
650 $aGrowth performance
650 $aPellets
650 $aDigestibilidade
650 $aFrango de Corte
653 $aConditioning time
653 $aDesempenho de crescimento
700 1 $aBASSI, L. S.
700 1 $aSCHRAMM, V. G.
700 1 $aROCHA, C. da
700 1 $aDAHLKE, F.
700 1 $aKRABBE, E. L.
700 1 $aMAIORKA, A.
773 $tLivestock Science$gv. 240, 2020.
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