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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
26/01/2018 |
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Data da última atualização: |
26/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEDREIRA, C. G. S.; SILVA, V. J.; PEDREIRA, B. C. e; SOLLENBERGER, L. E. |
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Afiliação: |
CARLOS G. S. PEDREIRA, USP-ESALQ; VALDSON J. SILVA, USP-ESALQ; BRUNO CARNEIRO E PEDREIRA, CPAMT; LYNN E. SOLLENBERGER, UNIVERSITY OF FLORIDA. |
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Título: |
Herbage Accumulation and Organic Reserves of Palisadegrass in Response to Grazing Management based on Canopy Targets. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Crop Science, v. 57, n. 4, p. 2283-2293, 2017. |
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DOI: |
http://dx.doi.org/10.2135/cropsci2016.11.0957 |
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Idioma: |
Inglês |
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Conteúdo: |
Improved grazing management can increase the output of many tropical forage?livestock systems. Adjusted grazing management techniques have been proposed for producers that are willing to exploit the growth potential of available forage resources. The objective of this research was to describe and explain variations in herbage accumulation dynamics and organic reserves of cultivar Xaraés palisadegrass [Brachiaria brizantha (Hochst. ex A. Rich.) Stapf syn. Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster] under three grazing managements during spring and summer growing seasons of 2 yr. Pastures were grazed every 28 d (28-d) or at intervals defined by two levels of pre-graze canopy light interception (LI). These LI-based treatments are referred to as ?target grazing? (TG) at 95% LI and ?delayed grazing? (DG) at ³97.5% LI. Pastures managed using TG and 28-d showed a similar herbage accumulation rate (HAR) (112 kg DM ha?1 d?1) (P > 0.05), both lesser than DG (141 kg DM ha?1 d?1). Although TG and 28-d showed similar daily HAR, stem proportion in the stubble was more variable for 28-d over the growing season. Stem proportion in the stubble was greater for DG (43.8%) and 28-d (40.4%) than for TG (34.2%). The TG management showed greater total non-structural carbohydrate (TNC) pools in roots (238 g m?2) than DG (136 g m?2) and 28-d (199 g m?2), suggesting less dependency of organic reserves. The TG was optimal strategy for intensive grazing management of Xaraés palisadegrass pastures. MenosImproved grazing management can increase the output of many tropical forage?livestock systems. Adjusted grazing management techniques have been proposed for producers that are willing to exploit the growth potential of available forage resources. The objective of this research was to describe and explain variations in herbage accumulation dynamics and organic reserves of cultivar Xaraés palisadegrass [Brachiaria brizantha (Hochst. ex A. Rich.) Stapf syn. Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster] under three grazing managements during spring and summer growing seasons of 2 yr. Pastures were grazed every 28 d (28-d) or at intervals defined by two levels of pre-graze canopy light interception (LI). These LI-based treatments are referred to as ?target grazing? (TG) at 95% LI and ?delayed grazing? (DG) at ³97.5% LI. Pastures managed using TG and 28-d showed a similar herbage accumulation rate (HAR) (112 kg DM ha?1 d?1) (P > 0.05), both lesser than DG (141 kg DM ha?1 d?1). Although TG and 28-d showed similar daily HAR, stem proportion in the stubble was more variable for 28-d over the growing season. Stem proportion in the stubble was greater for DG (43.8%) and 28-d (40.4%) than for TG (34.2%). The TG management showed greater total non-structural carbohydrate (TNC) pools in roots (238 g m?2) than DG (136 g m?2) and 28-d (199 g m?2), suggesting less dependency of organic reserves. The TG was optimal strategy for intensive grazing management of Xaraés palisadegrass pas... Mostrar Tudo |
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Palavras-Chave: |
Forage-livestock systems. |
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Thesagro: |
Brachiaria Brizantha. |
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Thesaurus Nal: |
Canopy; Grazing management; Urochloa brizantha. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02262naa a2200229 a 4500
001 2086507
005 2018-01-26
008 2017 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.2135/cropsci2016.11.0957$2DOI
100 1 $aPEDREIRA, C. G. S.
245 $aHerbage Accumulation and Organic Reserves of Palisadegrass in Response to Grazing Management based on Canopy Targets.$h[electronic resource]
260 $c2017
520 $aImproved grazing management can increase the output of many tropical forage?livestock systems. Adjusted grazing management techniques have been proposed for producers that are willing to exploit the growth potential of available forage resources. The objective of this research was to describe and explain variations in herbage accumulation dynamics and organic reserves of cultivar Xaraés palisadegrass [Brachiaria brizantha (Hochst. ex A. Rich.) Stapf syn. Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster] under three grazing managements during spring and summer growing seasons of 2 yr. Pastures were grazed every 28 d (28-d) or at intervals defined by two levels of pre-graze canopy light interception (LI). These LI-based treatments are referred to as ?target grazing? (TG) at 95% LI and ?delayed grazing? (DG) at ³97.5% LI. Pastures managed using TG and 28-d showed a similar herbage accumulation rate (HAR) (112 kg DM ha?1 d?1) (P > 0.05), both lesser than DG (141 kg DM ha?1 d?1). Although TG and 28-d showed similar daily HAR, stem proportion in the stubble was more variable for 28-d over the growing season. Stem proportion in the stubble was greater for DG (43.8%) and 28-d (40.4%) than for TG (34.2%). The TG management showed greater total non-structural carbohydrate (TNC) pools in roots (238 g m?2) than DG (136 g m?2) and 28-d (199 g m?2), suggesting less dependency of organic reserves. The TG was optimal strategy for intensive grazing management of Xaraés palisadegrass pastures.
650 $aCanopy
650 $aGrazing management
650 $aUrochloa brizantha
650 $aBrachiaria Brizantha
653 $aForage-livestock systems
700 1 $aSILVA, V. J.
700 1 $aPEDREIRA, B. C. e
700 1 $aSOLLENBERGER, L. E.
773 $tCrop Science$gv. 57, n. 4, p. 2283-2293, 2017.
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Embrapa Agrossilvipastoril (CPAMT) |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
14/01/2019 |
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Data da última atualização: |
14/01/2019 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
PEREIRA, G. de M.; MARTINS, T. R.; LATTA, K. I.; RIBAS, M. N.; FERNANDES JUNIOR, J. A.; GOMES, R. da C.; EGITO, A. A. do; MENEZES, G. R. de O. |
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Afiliação: |
GABRIEL DE MORAIS PEREIRA, Universidade Federal de Mato Grosso do Sul - UFMS; TAYNARA RAIMUNDO MARTINS, Universidade Federal de Goiás - UFG; KARLA IZIDIO LATTA, Universidade Católica Dom Bosco - UCDB; MARCELO NEVES RIBAS, Intergado Ltd.; JOSÉ ANTÔNIO FERNANDES JUNIOR, Grama Senepol/Fazenda Grama; RODRIGO DA COSTA GOMES, CNPGC; ANDREA ALVES DO EGITO, CNPGC; GILBERTO ROMEIRO DE OLIVEIRA MENEZE, CNPGC. |
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Título: |
Carcass traits of Senepol heifers with divergent residual water intake |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 55.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 28., 2018, Goiânia. Construindo saberes, formando pessoas e transformando a produção animal: anais. Viçosa: Sociedade Brasileira de Zootecnia; Brasília, DF: Associação Brasileira de Zootecnistas. |
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Idioma: |
Inglês |
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Conteúdo: |
Residual water intake (RWI) is a measure of water efficiency that can be used for selection in beef cattle. Currently, it is not known the association of RWI with carcass traits. Thus, the aim of this study was to evaluate the relation among RWI and ultrasound carcass traits in Senepol cattle. Records on 749 Senepol heifers of approximately 17 months of age, involved in feedlot performance tests, were used. |
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Palavras-Chave: |
Sustainability; Water efficiency. |
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Thesaurus NAL: |
Beef quality; Cattle. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/190445/1/Carcass-traits-of-Senepol-heifers.pdf
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Marc: |
LEADER 01361nam a2200241 a 4500
001 2103957
005 2019-01-14
008 2018 bl uuuu u00u1 u #d
100 1 $aPEREIRA, G. de M.
245 $aCarcass traits of Senepol heifers with divergent residual water intake$h[electronic resource]
260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 55.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 28., 2018, Goiânia. Construindo saberes, formando pessoas e transformando a produção animal: anais. Viçosa: Sociedade Brasileira de Zootecnia; Brasília, DF: Associação Brasileira de Zootecnistas.$c2018
520 $aResidual water intake (RWI) is a measure of water efficiency that can be used for selection in beef cattle. Currently, it is not known the association of RWI with carcass traits. Thus, the aim of this study was to evaluate the relation among RWI and ultrasound carcass traits in Senepol cattle. Records on 749 Senepol heifers of approximately 17 months of age, involved in feedlot performance tests, were used.
650 $aBeef quality
650 $aCattle
653 $aSustainability
653 $aWater efficiency
700 1 $aMARTINS, T. R.
700 1 $aLATTA, K. I.
700 1 $aRIBAS, M. N.
700 1 $aFERNANDES JUNIOR, J. A.
700 1 $aGOMES, R. da C.
700 1 $aEGITO, A. A. do
700 1 $aMENEZES, G. R. de O.
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