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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
06/04/2006 |
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Data da última atualização: |
05/12/2023 |
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Autoria: |
DEL CLARO, G. R.; ZANETTI, M. A.; PAIVA, F. A.; SARAN NETTO, A.; SALLES, M. S. V.; CORREA, L. B. |
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Título: |
Influência do balanço cário-aniônico da dieta no rúmen e no desempenho de ovinos. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, v. 57, n. 5, p. 644-651, out. 2005. |
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DOI: |
http://dx.doi.org/10.1590/S0102-09352005000500010 |
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Idioma: |
Português |
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Conteúdo: |
Estudou-se o efeito do balanço cátion-aniônico da dieta (BCAD) no desempenho animal e na fermentação ruminal, utilizando-se 25 carneiros machos, da raça Santa Inês, durante 75 dias. O delineamento experimental foi em blocos ao acaso, com cinco tratamentos. Para a manipulação do BCAD, foram adicionados sulfato de amônio e bicarbonato de sódio, obtendo-se os seguintes tratamentos: -160, -40, 140, 250 e 500 mEq/kg de matéria seca. O aumento do BCAD resultou em aumentos da ingestão de matéria seca, do ganho diário, da eficiência alimentar e do pH ruminal (P<0,05). O perfil de ácidos graxos ruminais não foi afetado pelo BCAD.
Influence of dietary cation-anion balance on rumen and performance variables in sheep
The effect of dietary cation-anion balance (DCAB) on dry matter intake, daily weight gain, feed conversion efficiency, rumen pH and rumen volatile fatty acid profile in Santa Ines sheep was studied. Dietary treatments were formulated combining sodium sulphate and sodium bicarbonate in appropriate ratios to achieve DCAB balance of -160, -40, 140, 250 and 500 mEq/kg dry matter. Twenty five male lambs were assigned to the five treatments in a randomized block design for a 75-day feeding trial. Increasing DCAB was associated with increasing voluntary dry matter intake, daily weight gain, feed conversion efficiency and rumen pH (P<0.05); but DCAB did not affect the volatile fatty acid profile in the rumen. |
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Palavras-Chave: |
BCAD; Desempenho produtivo. |
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Thesagro: |
Bicarbonato; Ingestão; Ovino; Ph. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02232naa a2200265 a 4500
001 1531879
005 2023-12-05
008 2005 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/S0102-09352005000500010$2DOI
100 1 $aDEL CLARO, G. R.
245 $aInfluência do balanço cário-aniônico da dieta no rúmen e no desempenho de ovinos.
260 $c2005
520 $aEstudou-se o efeito do balanço cátion-aniônico da dieta (BCAD) no desempenho animal e na fermentação ruminal, utilizando-se 25 carneiros machos, da raça Santa Inês, durante 75 dias. O delineamento experimental foi em blocos ao acaso, com cinco tratamentos. Para a manipulação do BCAD, foram adicionados sulfato de amônio e bicarbonato de sódio, obtendo-se os seguintes tratamentos: -160, -40, 140, 250 e 500 mEq/kg de matéria seca. O aumento do BCAD resultou em aumentos da ingestão de matéria seca, do ganho diário, da eficiência alimentar e do pH ruminal (P<0,05). O perfil de ácidos graxos ruminais não foi afetado pelo BCAD. Influence of dietary cation-anion balance on rumen and performance variables in sheep The effect of dietary cation-anion balance (DCAB) on dry matter intake, daily weight gain, feed conversion efficiency, rumen pH and rumen volatile fatty acid profile in Santa Ines sheep was studied. Dietary treatments were formulated combining sodium sulphate and sodium bicarbonate in appropriate ratios to achieve DCAB balance of -160, -40, 140, 250 and 500 mEq/kg dry matter. Twenty five male lambs were assigned to the five treatments in a randomized block design for a 75-day feeding trial. Increasing DCAB was associated with increasing voluntary dry matter intake, daily weight gain, feed conversion efficiency and rumen pH (P<0.05); but DCAB did not affect the volatile fatty acid profile in the rumen.
650 $aBicarbonato
650 $aIngestão
650 $aOvino
650 $aPh
653 $aBCAD
653 $aDesempenho produtivo
700 1 $aZANETTI, M. A.
700 1 $aPAIVA, F. A.
700 1 $aSARAN NETTO, A.
700 1 $aSALLES, M. S. V.
700 1 $aCORREA, L. B.
773 $tArquivo Brasileiro de Medicina Veterinária e Zootecnia$gv. 57, n. 5, p. 644-651, out. 2005.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Tabuleiros Costeiros. Para informações adicionais entre em contato com cpatc.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
12/04/2012 |
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Data da última atualização: |
12/04/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 5 |
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Autoria: |
NOGUEIRA JUNIOR, L. R.; GONCALVES, J. L. de M.; ENGEL, V. L.; PARROTTA, J. |
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Afiliação: |
LAURO RODRIGUES NOGUEIRA JUNIOR, CPATC. |
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Título: |
Soil dynamics and carbon stocks 10 years after restoration of degraded land using Atlantic Forest tree species. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Forest Systems, v. 20, n. 3, p. 536-545, 2011. |
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ISSN: |
1131-7965 |
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Idioma: |
Português |
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Conteúdo: |
Brazil?s Atlantic Forest ecosystem has been greatly affected by land use changes, with only 11.26% of its original vegetation cover remaining. Currently, Atlantic Forest restoration is receiving increasing attention because of its potential for carbon sequestration and the important role of soil carbon in the global carbon balance. Soil organic matter is also essential for physical, chemical and biological components of soil fertility and forest sustainability. This study evaluated the potential for soil recovery in contrasting restoration models using indigenous Atlantic Forest tree species ten years after their establishment. The study site is located in Botucatu municipality, São Paulo State-Brazil, in a loamy dystrophic Red-Yellow Argisol site (Typic Hapludult). Four treatments were compared: i) Control (Spontaneous Restoration); ii) Low Diversity (five fast-growing tree species established by direct seeding); iii) High Diversity (mixed plantings of 41 species established with seedlings) and; iv) Native Forest (well conserved neighboring forest fragment). The following soil properties were evaluated: (1) physical- texture, density and porosity; (2) chemical- C, N, P, S, K, Ca, Mg, Al and pH; (3) biological-microbial biomass. Litter nutrient concentrations (P, S, K, Ca and Mg) and C and N litter stocks were determined. Within ten years the litter C and N stocks of the Low Diversity treatment area were higher than Control and similar to those in both the High Diversity treatment and the Native Forest. Soil C stocks increased through time for both models and in the Control plots, but remained highest in the Native Forest. The methods of restoration were shown to have different effects on soil dynamics, mainly on chemical properties. These results show that, at least in the short-term, changes in soil properties are more rapid in a less complex system like the Low Diversity model than in the a High Species Diversity model. For both mixed plantation systems, carbon soil cycling can be reestablished, resulting in increases in carbon stocks in both soil and litter. MenosBrazil?s Atlantic Forest ecosystem has been greatly affected by land use changes, with only 11.26% of its original vegetation cover remaining. Currently, Atlantic Forest restoration is receiving increasing attention because of its potential for carbon sequestration and the important role of soil carbon in the global carbon balance. Soil organic matter is also essential for physical, chemical and biological components of soil fertility and forest sustainability. This study evaluated the potential for soil recovery in contrasting restoration models using indigenous Atlantic Forest tree species ten years after their establishment. The study site is located in Botucatu municipality, São Paulo State-Brazil, in a loamy dystrophic Red-Yellow Argisol site (Typic Hapludult). Four treatments were compared: i) Control (Spontaneous Restoration); ii) Low Diversity (five fast-growing tree species established by direct seeding); iii) High Diversity (mixed plantings of 41 species established with seedlings) and; iv) Native Forest (well conserved neighboring forest fragment). The following soil properties were evaluated: (1) physical- texture, density and porosity; (2) chemical- C, N, P, S, K, Ca, Mg, Al and pH; (3) biological-microbial biomass. Litter nutrient concentrations (P, S, K, Ca and Mg) and C and N litter stocks were determined. Within ten years the litter C and N stocks of the Low Diversity treatment area were higher than Control and similar to those in both the High Diversity tre... Mostrar Tudo |
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Thesaurus NAL: |
carbon; soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02679naa a2200193 a 4500
001 1922163
005 2012-04-12
008 2011 bl uuuu u00u1 u #d
022 $a1131-7965
100 1 $aNOGUEIRA JUNIOR, L. R.
245 $aSoil dynamics and carbon stocks 10 years after restoration of degraded land using Atlantic Forest tree species.$h[electronic resource]
260 $c2011
520 $aBrazil?s Atlantic Forest ecosystem has been greatly affected by land use changes, with only 11.26% of its original vegetation cover remaining. Currently, Atlantic Forest restoration is receiving increasing attention because of its potential for carbon sequestration and the important role of soil carbon in the global carbon balance. Soil organic matter is also essential for physical, chemical and biological components of soil fertility and forest sustainability. This study evaluated the potential for soil recovery in contrasting restoration models using indigenous Atlantic Forest tree species ten years after their establishment. The study site is located in Botucatu municipality, São Paulo State-Brazil, in a loamy dystrophic Red-Yellow Argisol site (Typic Hapludult). Four treatments were compared: i) Control (Spontaneous Restoration); ii) Low Diversity (five fast-growing tree species established by direct seeding); iii) High Diversity (mixed plantings of 41 species established with seedlings) and; iv) Native Forest (well conserved neighboring forest fragment). The following soil properties were evaluated: (1) physical- texture, density and porosity; (2) chemical- C, N, P, S, K, Ca, Mg, Al and pH; (3) biological-microbial biomass. Litter nutrient concentrations (P, S, K, Ca and Mg) and C and N litter stocks were determined. Within ten years the litter C and N stocks of the Low Diversity treatment area were higher than Control and similar to those in both the High Diversity treatment and the Native Forest. Soil C stocks increased through time for both models and in the Control plots, but remained highest in the Native Forest. The methods of restoration were shown to have different effects on soil dynamics, mainly on chemical properties. These results show that, at least in the short-term, changes in soil properties are more rapid in a less complex system like the Low Diversity model than in the a High Species Diversity model. For both mixed plantation systems, carbon soil cycling can be reestablished, resulting in increases in carbon stocks in both soil and litter.
650 $acarbon
650 $asoil
700 1 $aGONCALVES, J. L. de M.
700 1 $aENGEL, V. L.
700 1 $aPARROTTA, J.
773 $tForest Systems$gv. 20, n. 3, p. 536-545, 2011.
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Embrapa Tabuleiros Costeiros (CPATC) |
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