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Registro Completo |
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
28/06/2013 |
Data da última atualização: |
28/06/2013 |
Tipo da produção científica: |
Boletim de Pesquisa e Desenvolvimento |
Autoria: |
PINHEIRO, J. B.; CARVALHO, A. D. F. de; RODRIGUES, C. da S.; PEREIRA, R. B.; SUINAGA, F. A. |
Afiliação: |
JADIR BORGES PINHEIRO, CNPH; AGNALDO DONIZETE FERREIRA DE CARVAL, CNPH; CECÍLIA DA SILVA RODRIGUES, UNIVERSIDADE DE BRASÍLIA; RICARDO BORGES PEREIRA, CNPH; FABIO AKIYOSHI SUINAGA, CNPH. |
Título: |
Reação de clones avançados de batata em campo naturalmente infestado pelo nematoide-das-galhas. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Brasília, DF: Embrapa Hortaliças, 2013. |
Páginas: |
18 p. |
Série: |
(Embrapa Hortaliças. Boletim de Pesquisa e Desenvolvimento, 99). |
ISSN: |
1677-2229 |
Idioma: |
Português |
Conteúdo: |
O objetivo desse trabalho foi avaliar a reação de clones avançados de batata inglesa do programa de melhoramento da Embrapa a Meloidogyne spp. em área naturalmente infestada a campo. |
Palavras-Chave: |
Nematoide-das-galhas. |
Thesagro: |
Batata; Melhoramento genético vegetal; Nematoide; Reprodução vegetal; Resistencia genética; Solanum tuberosum. |
Thesaurus Nal: |
Meloidogyne. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/84965/1/bpd-99.pdf
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Marc: |
LEADER 01088nam a2200289 a 4500 001 1960827 005 2013-06-28 008 2013 bl uuuu u0uu1 u #d 022 $a1677-2229 100 1 $aPINHEIRO, J. B. 245 $aReação de clones avançados de batata em campo naturalmente infestado pelo nematoide-das-galhas.$h[electronic resource] 260 $aBrasília, DF: Embrapa Hortaliças$c2013 300 $a18 p. 490 $a(Embrapa Hortaliças. Boletim de Pesquisa e Desenvolvimento, 99). 520 $aO objetivo desse trabalho foi avaliar a reação de clones avançados de batata inglesa do programa de melhoramento da Embrapa a Meloidogyne spp. em área naturalmente infestada a campo. 650 $aMeloidogyne 650 $aBatata 650 $aMelhoramento genético vegetal 650 $aNematoide 650 $aReprodução vegetal 650 $aResistencia genética 650 $aSolanum tuberosum 653 $aNematoide-das-galhas 700 1 $aCARVALHO, A. D. F. de 700 1 $aRODRIGUES, C. da S. 700 1 $aPEREIRA, R. B. 700 1 $aSUINAGA, F. A.
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Registro original: |
Embrapa Hortaliças (CNPH) |
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Registro Completo
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
09/01/2019 |
Data da última atualização: |
09/01/2019 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
CONGIO, G. F. S.; CHIAVEGATO, M. B.; BATALHA, C. D. A.; BERNDT, A.; FRIGHETTO, R. T. S.; SILVA, S. C. da. |
Afiliação: |
Guilhermo F. de. S. Congio, USP; Marília B. Chiavegato, pós-doctouranda USP; Camila D. A. Batalha, USP; ALEXANDRE BERNDT, CPPSE; ROSA TOYOKO SHIRAISHI FRIGHETTO, CNPMA; Sila C. da Silva, USP. |
Título: |
Effect of grazing frequency on enteric methane emissions, output of milk constituents and milk yield. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 54., 2017, Foz do Iguaçu, PR. Proceedings... Foz do Iguaçu, PR: SBZ, 2017. |
Páginas: |
p. 587. |
Idioma: |
Português |
Conteúdo: |
Grazing management changes sward structure, affecting forage morphological characteristics and nutritive value, and ultimately animal performance and enteric methane (CH4) emissions. The objective of this study was to evaluate enteric methane emissions and animal performance of lactating dairy cows grazing elephant grass (Pennisetum purpureum Schum. cv. Cameroon). Treatments corresponded to strategies of rotational grazing characterized by two pre-grazing targets; 95% and maximum canopy light interception (LI95% and LIMax, respectively). Post-grazing target corresponded to 50% of the pre-grazing targets. Twenty-two midlactation Holstein × Jersey cows (488 ± 60 kg) were stratified by body weight, days in milk (126 ± 90 days), lactation number (2.3 ± 1.2), and daily milk yield (20.3 ± 2.6 kg d-1) in a completely randomized design (n = 11). The 2.5 ha experimental area was divided into two sets of 18 paddocks (700 m2). Concentrate was offered twice daily before milking based on the average milk production of each group (1 kg of concentrate:3 kg of milk). Enteric CH4 emissions were collected using the sulfur hexafluoride (SF6) tracer gas method. Dry matter intake (DMI) was determined using titanium dioxide as a marker. Sampling occurred during the grazing season from December 2015 to April 2016. Results were analyzed using the PROC MIXED of SAS (? = 0.05). There were no treatment effects on DMI (18.4 kg d-1, on average; P = 0.090) nor on daily CH4 emissions (304.9 g d-1 on average; P = 0.136). Therefore, there were no treatment effects on enteric CH4 emissions per unit of feed consumed (17.3 g CH4 kg DMI-1). However, cows grazing LI95% swards had greater milk (17.5 vs 14.6 kg d-1; P = 0.043), protein (0.55 vs 0.47 kg d-1; P = 0.029), fat (0.66 vs 0.55 kg d-1; P = 0.027), and milk solids yield (2.15 vs 1.79 kg d-1; P = 0.019). Consequently, the LI95% target resulted in lower enteric CH4 emissions per unit of milk produced (16.7 vs 23.4 g CH4 L-1, P = 0.002), per unit of milk protein (528.1 vs 703.5 g CH4 kg-1; P = 0.003), per unit of milk fat (437.9 vs 606.5 g CH4 kg-1; P = 0.001), and per unit of milk solids yield (135.2 vs 186.1 g CH4 kg-1; P = 0.001). Grazing management based on the LI95% pre-grazing target resulted in increased output of milk constituents and milk yield, whilst reducing CH4 emissions per unit of final product. These results are likely associated with increased forage nutritive value in LI95% swards, since no effects of pre-grazing targets were observed on DMI. MenosGrazing management changes sward structure, affecting forage morphological characteristics and nutritive value, and ultimately animal performance and enteric methane (CH4) emissions. The objective of this study was to evaluate enteric methane emissions and animal performance of lactating dairy cows grazing elephant grass (Pennisetum purpureum Schum. cv. Cameroon). Treatments corresponded to strategies of rotational grazing characterized by two pre-grazing targets; 95% and maximum canopy light interception (LI95% and LIMax, respectively). Post-grazing target corresponded to 50% of the pre-grazing targets. Twenty-two midlactation Holstein × Jersey cows (488 ± 60 kg) were stratified by body weight, days in milk (126 ± 90 days), lactation number (2.3 ± 1.2), and daily milk yield (20.3 ± 2.6 kg d-1) in a completely randomized design (n = 11). The 2.5 ha experimental area was divided into two sets of 18 paddocks (700 m2). Concentrate was offered twice daily before milking based on the average milk production of each group (1 kg of concentrate:3 kg of milk). Enteric CH4 emissions were collected using the sulfur hexafluoride (SF6) tracer gas method. Dry matter intake (DMI) was determined using titanium dioxide as a marker. Sampling occurred during the grazing season from December 2015 to April 2016. Results were analyzed using the PROC MIXED of SAS (? = 0.05). There were no treatment effects on DMI (18.4 kg d-1, on average; P = 0.090) nor on daily CH4 emissions (304.9 g d-1 on avera... Mostrar Tudo |
Palavras-Chave: |
Light interception. |
Thesagro: |
Metano; Pennisetum Purpureum; Vaca Leiteira. |
Thesaurus NAL: |
Dairy cows; Emissions; Methane; Pennisetum. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/190029/1/RA-FrighettoRTS-54-RASBZ-2017-p587.pdf
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Marc: |
LEADER 03403nam a2200277 a 4500 001 2103344 005 2019-01-09 008 2018 bl uuuu u00u1 u #d 100 1 $aCONGIO, G. F. S. 245 $aEffect of grazing frequency on enteric methane emissions, output of milk constituents and milk yield.$h[electronic resource] 260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 54., 2017, Foz do Iguaçu, PR. Proceedings... Foz do Iguaçu, PR: SBZ$c2017 300 $ap. 587. 520 $aGrazing management changes sward structure, affecting forage morphological characteristics and nutritive value, and ultimately animal performance and enteric methane (CH4) emissions. The objective of this study was to evaluate enteric methane emissions and animal performance of lactating dairy cows grazing elephant grass (Pennisetum purpureum Schum. cv. Cameroon). Treatments corresponded to strategies of rotational grazing characterized by two pre-grazing targets; 95% and maximum canopy light interception (LI95% and LIMax, respectively). Post-grazing target corresponded to 50% of the pre-grazing targets. Twenty-two midlactation Holstein × Jersey cows (488 ± 60 kg) were stratified by body weight, days in milk (126 ± 90 days), lactation number (2.3 ± 1.2), and daily milk yield (20.3 ± 2.6 kg d-1) in a completely randomized design (n = 11). The 2.5 ha experimental area was divided into two sets of 18 paddocks (700 m2). Concentrate was offered twice daily before milking based on the average milk production of each group (1 kg of concentrate:3 kg of milk). Enteric CH4 emissions were collected using the sulfur hexafluoride (SF6) tracer gas method. Dry matter intake (DMI) was determined using titanium dioxide as a marker. Sampling occurred during the grazing season from December 2015 to April 2016. Results were analyzed using the PROC MIXED of SAS (? = 0.05). There were no treatment effects on DMI (18.4 kg d-1, on average; P = 0.090) nor on daily CH4 emissions (304.9 g d-1 on average; P = 0.136). Therefore, there were no treatment effects on enteric CH4 emissions per unit of feed consumed (17.3 g CH4 kg DMI-1). However, cows grazing LI95% swards had greater milk (17.5 vs 14.6 kg d-1; P = 0.043), protein (0.55 vs 0.47 kg d-1; P = 0.029), fat (0.66 vs 0.55 kg d-1; P = 0.027), and milk solids yield (2.15 vs 1.79 kg d-1; P = 0.019). Consequently, the LI95% target resulted in lower enteric CH4 emissions per unit of milk produced (16.7 vs 23.4 g CH4 L-1, P = 0.002), per unit of milk protein (528.1 vs 703.5 g CH4 kg-1; P = 0.003), per unit of milk fat (437.9 vs 606.5 g CH4 kg-1; P = 0.001), and per unit of milk solids yield (135.2 vs 186.1 g CH4 kg-1; P = 0.001). Grazing management based on the LI95% pre-grazing target resulted in increased output of milk constituents and milk yield, whilst reducing CH4 emissions per unit of final product. These results are likely associated with increased forage nutritive value in LI95% swards, since no effects of pre-grazing targets were observed on DMI. 650 $aDairy cows 650 $aEmissions 650 $aMethane 650 $aPennisetum 650 $aMetano 650 $aPennisetum Purpureum 650 $aVaca Leiteira 653 $aLight interception 700 1 $aCHIAVEGATO, M. B. 700 1 $aBATALHA, C. D. A. 700 1 $aBERNDT, A. 700 1 $aFRIGHETTO, R. T. S. 700 1 $aSILVA, S. C. da
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