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Registro Completo |
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
26/12/2012 |
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Data da última atualização: |
26/12/2012 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CARVALHO, J. M. F. C.; BARROSO, P. A. V.; SILVA, D. M. de S.; ALVES, A. M. M. |
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Afiliação: |
JULITA MARIA FROTA CHAGAS CARVALHO, CNPA; PAULO AUGUSTO VIANNA BARROSO, CNPA; DIONE MARCIA DE SOUZA SILVA, CNPA; Ákyla Maria Martins Alves, Estagiária da Embrapa Algodão, graduanda do curso de Ciências Biológicas da UEPB. |
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Título: |
Recuperação dos acessos do banco ativo de germoplasma de algodão in vitro de 2011 a 2012. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
CONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão, 2012. |
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Páginas: |
p. 385 |
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Idioma: |
Português |
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Palavras-Chave: |
CULTIVO DE TECIDOS IN VITRO; GOSSYPIUM HIRSUTUM L; MELHORAMENTO GENÉTICO. |
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Thesagro: |
Algodão; Regeneração. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/72791/1/MEL-009-P.269.pdf
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Marc: |
LEADER 00804nam a2200205 a 4500
001 1943528
005 2012-12-26
008 2012 bl uuuu u00u1 u #d
100 1 $aCARVALHO, J. M. F. C.
245 $aRecuperação dos acessos do banco ativo de germoplasma de algodão in vitro de 2011 a 2012.
260 $aCONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão$c2012
300 $ap. 385
650 $aAlgodão
650 $aRegeneração
653 $aCULTIVO DE TECIDOS IN VITRO
653 $aGOSSYPIUM HIRSUTUM L
653 $aMELHORAMENTO GENÉTICO
700 1 $aBARROSO, P. A. V.
700 1 $aSILVA, D. M. de S.
700 1 $aALVES, A. M. M.
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Registro original: |
Embrapa Algodão (CNPA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
06/12/2022 |
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Data da última atualização: |
06/12/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
MARÍN GÓMEZ, A.; LACA, E. A.; BALDISSERA, T. C.; PINTO, C. E.; GARAGORRY, F. C.; ZUBIETA, A. S.; BREMM, C.; BINDELLE, J.; CARVALHO, P. C. de F. |
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Afiliação: |
ALEJANDRA MARÍN GÓMEZ, Federal University of Rio Grande do Sul; EMILIO A. LACA, University of California; TIAGO CELSO BALDISSERA, EPAGRI; CASSIANO EDUARDO PINTO, EPAGRI; FABIO CERVO GARAGORRY, CPPSUL; ANGEL S. ZUBIETA, Federal University of Rio Grande do Sul; CAROLINA BREMM, Federal University of Rio Grande do Sul; JERÔME BINDELLE, Liège University; PAULO CÉSAR DE FACCIO CARVALHO, Federal University of Rio Grande do Sul. |
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Título: |
Determining the pre-grazing sward height of Kikuyu grass (Cenchrus clandestinus - Hochst. ex Chiov.) for optimizing nutrient intake rate of dairy heifers. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
PLos One, v. 17, n. 7, e0269716, July 2022. |
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DOI: |
https://doi. org/10.1371/journal.pone.0269716 |
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Idioma: |
Inglês |
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Conteúdo: |
Understanding the grazing process and animal response to sward structures (e.g., sward height) is key to setting targets for efficient grazing management. We hypothesized that the short-term intake rate (STIR) of dry matter (DM) and digestible organic matter (OM) by dairy heifers is maximized with Kikuyu grass (Cenchrus clandestinus?Hochst. ex Chiov.) of intermediate sward heights. The treatments consisted of five pre-grazing sward heights (10, 15, 20, 25, and 30 cm) randomly assigned to two of ten paddocks. The experimental design included two measurements of each paddock at different periods and times of day. Three Holstein heifers (440 ± 42 kg body weight) were used to determine the STIR, which was estimated using the double-weighing technique with correction for insensible weight losses. The bite mass (BM), bite rate (BR), sward structural characteristics, and nutritional value of herbage samples were assessed. The data were analyzed using mixed models with a factorial arrangement of five sward heights, two times of day, and two evaluation periods. The sward height of Kikuyu grass that maximized both STIRs was approximately 20 cm. The STIR of the DM was 30% and 15% lower than the maximum in the shortest and tallest swards tested, respectively. In swards shorter than 20 cm, the STIR was lower because the BM decreased with sward height, whereas in those greater than 20 cm, the lower BM and STIR of DM was explained by a decrease in bulk density and bite volume. The top stratum was composed mainly of highly digestible leaf blades with similar nutrient content across sward heights; therefore the STIR of digestible OM was also maximized at 20 cm. Hence, the optimal pre-grazing sward height of Kikuyu grass should be managed at 20 cm under rotational stocking systems to maximize nutrient intake rate of dairy heifers. MenosUnderstanding the grazing process and animal response to sward structures (e.g., sward height) is key to setting targets for efficient grazing management. We hypothesized that the short-term intake rate (STIR) of dry matter (DM) and digestible organic matter (OM) by dairy heifers is maximized with Kikuyu grass (Cenchrus clandestinus?Hochst. ex Chiov.) of intermediate sward heights. The treatments consisted of five pre-grazing sward heights (10, 15, 20, 25, and 30 cm) randomly assigned to two of ten paddocks. The experimental design included two measurements of each paddock at different periods and times of day. Three Holstein heifers (440 ± 42 kg body weight) were used to determine the STIR, which was estimated using the double-weighing technique with correction for insensible weight losses. The bite mass (BM), bite rate (BR), sward structural characteristics, and nutritional value of herbage samples were assessed. The data were analyzed using mixed models with a factorial arrangement of five sward heights, two times of day, and two evaluation periods. The sward height of Kikuyu grass that maximized both STIRs was approximately 20 cm. The STIR of the DM was 30% and 15% lower than the maximum in the shortest and tallest swards tested, respectively. In swards shorter than 20 cm, the STIR was lower because the BM decreased with sward height, whereas in those greater than 20 cm, the lower BM and STIR of DM was explained by a decrease in bulk density and bite volume. The top stra... Mostrar Tudo |
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Thesagro: |
Gado Leiteiro; Pastagem. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02663naa a2200253 a 4500
001 2149257
005 2022-12-06
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi. org/10.1371/journal.pone.0269716$2DOI
100 1 $aMARÍN GÓMEZ, A.
245 $aDetermining the pre-grazing sward height of Kikuyu grass (Cenchrus clandestinus - Hochst. ex Chiov.) for optimizing nutrient intake rate of dairy heifers.$h[electronic resource]
260 $c2022
520 $aUnderstanding the grazing process and animal response to sward structures (e.g., sward height) is key to setting targets for efficient grazing management. We hypothesized that the short-term intake rate (STIR) of dry matter (DM) and digestible organic matter (OM) by dairy heifers is maximized with Kikuyu grass (Cenchrus clandestinus?Hochst. ex Chiov.) of intermediate sward heights. The treatments consisted of five pre-grazing sward heights (10, 15, 20, 25, and 30 cm) randomly assigned to two of ten paddocks. The experimental design included two measurements of each paddock at different periods and times of day. Three Holstein heifers (440 ± 42 kg body weight) were used to determine the STIR, which was estimated using the double-weighing technique with correction for insensible weight losses. The bite mass (BM), bite rate (BR), sward structural characteristics, and nutritional value of herbage samples were assessed. The data were analyzed using mixed models with a factorial arrangement of five sward heights, two times of day, and two evaluation periods. The sward height of Kikuyu grass that maximized both STIRs was approximately 20 cm. The STIR of the DM was 30% and 15% lower than the maximum in the shortest and tallest swards tested, respectively. In swards shorter than 20 cm, the STIR was lower because the BM decreased with sward height, whereas in those greater than 20 cm, the lower BM and STIR of DM was explained by a decrease in bulk density and bite volume. The top stratum was composed mainly of highly digestible leaf blades with similar nutrient content across sward heights; therefore the STIR of digestible OM was also maximized at 20 cm. Hence, the optimal pre-grazing sward height of Kikuyu grass should be managed at 20 cm under rotational stocking systems to maximize nutrient intake rate of dairy heifers.
650 $aGado Leiteiro
650 $aPastagem
700 1 $aLACA, E. A.
700 1 $aBALDISSERA, T. C.
700 1 $aPINTO, C. E.
700 1 $aGARAGORRY, F. C.
700 1 $aZUBIETA, A. S.
700 1 $aBREMM, C.
700 1 $aBINDELLE, J.
700 1 $aCARVALHO, P. C. de F.
773 $tPLos One$gv. 17, n. 7, e0269716, July 2022.
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