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Registro Completo |
Biblioteca(s): |
Embrapa Roraima. |
Data corrente: |
04/09/2008 |
Data da última atualização: |
13/08/2009 |
Autoria: |
SERENO, J. R. B.; SILVA, E. V. C. e; MORES, C. M. |
Afiliação: |
Embrapa Pantanal (Corumba, MS); UFMS. Departamento de Medicina Veterinaria (Campo Grande, MS). |
Título: |
Reducao da proporcao touro : vaca no Pantanal Mato-Grossense. |
Ano de publicação: |
1999 |
Fonte/Imprenta: |
Corumba: Embrapa Pantanal, 1999. |
Páginas: |
24p. |
Série: |
(Embrapa Pantanal. Circular Tecnica, 26). |
Idioma: |
Português |
Conteúdo: |
Este trabalho foi conduzido com o objetivo de proporcionar alternativas de reducao da proporcao touro:vaca no Pantanal e, consequentemente, reduzir os custos de producao da pecuaria de corte regional. Utilizaram-se as proporcoes de 1:10, 1:25 e 1:40 em pastagens nativas com taxa de lotacao media de 0,28 UA/ha durante duas estacoes de monta consecutivas. A analise estatistica dos dados nao revelou efeito significativo para os seguintes fatores: ano (P=2.097), categoria animal (P=0,0773) e proporcao touro:vaca (P=8.134). Entretanto, para a variavel tipo de acasalamento (individuo ou multiplo), o sistema multiplo mostrou-se superior (P=0,0228) ao individual. Avaliou-se o impacto economico desta pratica de manejo no sistema de criacao extensivo do Pantanal e concluiu-se estar havendo subutilizacao de touros na regiao, na proporcao de 1:10. A utilizacao da proporcao 1:25 ou 1:40 reduziu os custos de producao do bezerro nascido em 60% e 75%, respectivamente. |
Palavras-Chave: |
Bovine; Brasil; Manejo reprodutivo; Production; Reproductive management; Socioeconomia. |
Thesagro: |
Bovino; Gado de Corte; Pecuária; Produção. |
Thesaurus Nal: |
beef cattle; Brazil; Pantanal. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01765nam a2200313 a 4500 001 1692613 005 2009-08-13 008 1999 bl uuuu u0uu1 u #d 100 1 $aSERENO, J. R. B. 245 $aReducao da proporcao touro$bvaca no Pantanal Mato-Grossense. 260 $aCorumba: Embrapa Pantanal$c1999 300 $a24p. 490 $a(Embrapa Pantanal. Circular Tecnica, 26). 520 $aEste trabalho foi conduzido com o objetivo de proporcionar alternativas de reducao da proporcao touro:vaca no Pantanal e, consequentemente, reduzir os custos de producao da pecuaria de corte regional. Utilizaram-se as proporcoes de 1:10, 1:25 e 1:40 em pastagens nativas com taxa de lotacao media de 0,28 UA/ha durante duas estacoes de monta consecutivas. A analise estatistica dos dados nao revelou efeito significativo para os seguintes fatores: ano (P=2.097), categoria animal (P=0,0773) e proporcao touro:vaca (P=8.134). Entretanto, para a variavel tipo de acasalamento (individuo ou multiplo), o sistema multiplo mostrou-se superior (P=0,0228) ao individual. Avaliou-se o impacto economico desta pratica de manejo no sistema de criacao extensivo do Pantanal e concluiu-se estar havendo subutilizacao de touros na regiao, na proporcao de 1:10. A utilizacao da proporcao 1:25 ou 1:40 reduziu os custos de producao do bezerro nascido em 60% e 75%, respectivamente. 650 $abeef cattle 650 $aBrazil 650 $aPantanal 650 $aBovino 650 $aGado de Corte 650 $aPecuária 650 $aProdução 653 $aBovine 653 $aBrasil 653 $aManejo reprodutivo 653 $aProduction 653 $aReproductive management 653 $aSocioeconomia 700 1 $aSILVA, E. V. C. e 700 1 $aMORES, C. M.
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Embrapa Roraima (CPAF-RR) |
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Registro Completo
Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
22/03/2021 |
Data da última atualização: |
22/03/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
LONGHINI, V. Z.; CARDOSO, A. S.; BERÇA, A. S.; BODDEY, R. M.; REIS, R. A.; DUBEUX JR, J. C. B.; RUGGIERI, A. C. |
Afiliação: |
VANESSA Z. LONGHINI, UNESP; ABMAEL S. CARDOSO, UNESP; ANDRESSA S. BERÇA, UNESP; ROBERT MICHAEL BODDEY, CNPAB; RICARDO A. REIS, UNESP; JOSE C. B. DUBEUX, FLORIDA UNIVERSITY; ANA C. RUGGIERI, UNESP. |
Título: |
Could forage peanut in low proportion replace N fertilizer in livestock systems? |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
PLoS ONE, v. 16, n. 3, e0247931, 2021. |
ISSN: |
1932-6203 |
DOI: |
https://doi.org/10.1371/journal. pone.0247931 |
Idioma: |
Inglês |
Conteúdo: |
Palisadegrass [Urochloa brizantha (Hochst. ex A. Rich.) R. D. Webster cv. Marandu] is widely used in Brazil and is typically managed with little or no N fertilizer, which often leads to pasture decline in the long-term. The current relationship between beef price and fertilizer cost in Brazil does not favor fertilizer use in pastures. Legume inclusion is an alternative to adding fertilizer N, but often legumes do not reach a significant proportion (> 30%) in pasture botanical composition. This study evaluated herbage responses to N inputs and pasture species composition, under intermittent stocking. Treatments included palisadegrass-forage peanut (Arachis pintoi Krapov. & W.C. Greg. cv. Amarillo) mixture (mixed), unfertilized palisadegrass (control), and palisadegrass fertilized with 150 kg N ha-1 yr-1 (fertilized). Treatments were applied over two rainy seasons with five growth cycle (GC) evaluations each season. Response variables included herbage biomass, herbage accumulation, morphological components, total aboveground N of forage peanut (TAGNFP), and contribution of biological N2 fixation (BNF). Herbage biomass was greater for fertilized palisadegrass [5850 kg dry matter (DM) ha-1] than for the palisadegrass-forage peanut mixture (3940 kg DM ha-1), while the unfertilized palisadegrass (4400 kg DM ha-1) did not differ from the mixed pasture. Nitrogen fertilizer increased leaf mass of palisadegrass (2490 kg DM ha-1) compared with the control and mixed treatments (1700 and 1310 kg DM ha-1, respectively). The contribution of BNF to the forage peanut ranged from 79 to 85% and 0.5 to 5.5 kg N ha-1 cycle-1. Overall, benefits from forage peanut were minimal because legume percentage was less than 10%, while N input in the system by N-fertilizer increased palisadegrass herbage biomas. MenosPalisadegrass [Urochloa brizantha (Hochst. ex A. Rich.) R. D. Webster cv. Marandu] is widely used in Brazil and is typically managed with little or no N fertilizer, which often leads to pasture decline in the long-term. The current relationship between beef price and fertilizer cost in Brazil does not favor fertilizer use in pastures. Legume inclusion is an alternative to adding fertilizer N, but often legumes do not reach a significant proportion (> 30%) in pasture botanical composition. This study evaluated herbage responses to N inputs and pasture species composition, under intermittent stocking. Treatments included palisadegrass-forage peanut (Arachis pintoi Krapov. & W.C. Greg. cv. Amarillo) mixture (mixed), unfertilized palisadegrass (control), and palisadegrass fertilized with 150 kg N ha-1 yr-1 (fertilized). Treatments were applied over two rainy seasons with five growth cycle (GC) evaluations each season. Response variables included herbage biomass, herbage accumulation, morphological components, total aboveground N of forage peanut (TAGNFP), and contribution of biological N2 fixation (BNF). Herbage biomass was greater for fertilized palisadegrass [5850 kg dry matter (DM) ha-1] than for the palisadegrass-forage peanut mixture (3940 kg DM ha-1), while the unfertilized palisadegrass (4400 kg DM ha-1) did not differ from the mixed pasture. Nitrogen fertilizer increased leaf mass of palisadegrass (2490 kg DM ha-1) compared with the control and mixed treatments (1700 and... Mostrar Tudo |
Palavras-Chave: |
BNF; Herbage biomass; Morphological components. |
Thesaurus NAL: |
Arachis pintoi. |
Categoria do assunto: |
S Ciências Biológicas |
Marc: |
LEADER 02584naa a2200265 a 4500 001 2130849 005 2021-03-22 008 2021 bl uuuu u00u1 u #d 022 $a1932-6203 024 7 $ahttps://doi.org/10.1371/journal. pone.0247931$2DOI 100 1 $aLONGHINI, V. Z. 245 $aCould forage peanut in low proportion replace N fertilizer in livestock systems?$h[electronic resource] 260 $c2021 520 $aPalisadegrass [Urochloa brizantha (Hochst. ex A. Rich.) R. D. Webster cv. Marandu] is widely used in Brazil and is typically managed with little or no N fertilizer, which often leads to pasture decline in the long-term. The current relationship between beef price and fertilizer cost in Brazil does not favor fertilizer use in pastures. Legume inclusion is an alternative to adding fertilizer N, but often legumes do not reach a significant proportion (> 30%) in pasture botanical composition. This study evaluated herbage responses to N inputs and pasture species composition, under intermittent stocking. Treatments included palisadegrass-forage peanut (Arachis pintoi Krapov. & W.C. Greg. cv. Amarillo) mixture (mixed), unfertilized palisadegrass (control), and palisadegrass fertilized with 150 kg N ha-1 yr-1 (fertilized). Treatments were applied over two rainy seasons with five growth cycle (GC) evaluations each season. Response variables included herbage biomass, herbage accumulation, morphological components, total aboveground N of forage peanut (TAGNFP), and contribution of biological N2 fixation (BNF). Herbage biomass was greater for fertilized palisadegrass [5850 kg dry matter (DM) ha-1] than for the palisadegrass-forage peanut mixture (3940 kg DM ha-1), while the unfertilized palisadegrass (4400 kg DM ha-1) did not differ from the mixed pasture. Nitrogen fertilizer increased leaf mass of palisadegrass (2490 kg DM ha-1) compared with the control and mixed treatments (1700 and 1310 kg DM ha-1, respectively). The contribution of BNF to the forage peanut ranged from 79 to 85% and 0.5 to 5.5 kg N ha-1 cycle-1. Overall, benefits from forage peanut were minimal because legume percentage was less than 10%, while N input in the system by N-fertilizer increased palisadegrass herbage biomas. 650 $aArachis pintoi 653 $aBNF 653 $aHerbage biomass 653 $aMorphological components 700 1 $aCARDOSO, A. S. 700 1 $aBERÇA, A. S. 700 1 $aBODDEY, R. M. 700 1 $aREIS, R. A. 700 1 $aDUBEUX JR, J. C. B. 700 1 $aRUGGIERI, A. C. 773 $tPLoS ONE$gv. 16, n. 3, e0247931, 2021.
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