Meadow management hay yields and nutritive value in the Mediterranean mountain regions of the Northeast of Portugal
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10198/5291 |
Resumo: | To evaluate the possibility of improving hay nutritive value, six hay meadows were studied in the Northeast of Portugal from 1998 to 2000. The treatments were fertilization rates of O, 75 and 150 kg N/ha/y in combination with two cutting/grazing regimes: the usual for the area (NG) and a larger spring grazing period with meadows closed off for hay three weeks later (LG). Their effects on crude protein content, in vitro organic matter digestibility, and dry-matter, crude protein and metabolizable energy yields were evaluated. The treatments studied significantly influenced the parameters evaluated. Late spring grazing induced the greatest changes in the highest yielding meadows (M3 and M5) increasing nutritive values but decreasing the DM yield (-2t DM/ha, + 1 % CP and +3% IVOMD). However, the positive influences on CP content and IVOMD are not high enough to overcome the low values (Iess than 10% CP and 50% IVOMD) observed in meadows with hay growth periods longer than 60-70 days |
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Meadow management hay yields and nutritive value in the Mediterranean mountain regions of the Northeast of PortugalCrude proteinDigestibilityDry-matter yieldHayNitrogen fertilizationTo evaluate the possibility of improving hay nutritive value, six hay meadows were studied in the Northeast of Portugal from 1998 to 2000. The treatments were fertilization rates of O, 75 and 150 kg N/ha/y in combination with two cutting/grazing regimes: the usual for the area (NG) and a larger spring grazing period with meadows closed off for hay three weeks later (LG). Their effects on crude protein content, in vitro organic matter digestibility, and dry-matter, crude protein and metabolizable energy yields were evaluated. The treatments studied significantly influenced the parameters evaluated. Late spring grazing induced the greatest changes in the highest yielding meadows (M3 and M5) increasing nutritive values but decreasing the DM yield (-2t DM/ha, + 1 % CP and +3% IVOMD). However, the positive influences on CP content and IVOMD are not high enough to overcome the low values (Iess than 10% CP and 50% IVOMD) observed in meadows with hay growth periods longer than 60-70 daysCIHEAMBiblioteca Digital do IPBPires, JaimeFernandes, AdelaideBernardo, AdelinoPires, JoãoMoreira, Nuno2011-06-21T14:20:35Z20052005-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/5291engPires, Jaime; Fernandes, Adelaide; Bernardo, A.; Pires, João; Moreira, Nuno (2005) – Meadow management hay yields and nutritive value in the Mediterranean mountain regions of the Northeast of Portugal. Options Méditerranéennes, Séries A. ISSN 1016-121X. 67, p. 67-731016-121Xinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-21T10:14:46Zoai:bibliotecadigital.ipb.pt:10198/5291Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:57:58.649491Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Meadow management hay yields and nutritive value in the Mediterranean mountain regions of the Northeast of Portugal |
title |
Meadow management hay yields and nutritive value in the Mediterranean mountain regions of the Northeast of Portugal |
spellingShingle |
Meadow management hay yields and nutritive value in the Mediterranean mountain regions of the Northeast of Portugal Pires, Jaime Crude protein Digestibility Dry-matter yield Hay Nitrogen fertilization |
title_short |
Meadow management hay yields and nutritive value in the Mediterranean mountain regions of the Northeast of Portugal |
title_full |
Meadow management hay yields and nutritive value in the Mediterranean mountain regions of the Northeast of Portugal |
title_fullStr |
Meadow management hay yields and nutritive value in the Mediterranean mountain regions of the Northeast of Portugal |
title_full_unstemmed |
Meadow management hay yields and nutritive value in the Mediterranean mountain regions of the Northeast of Portugal |
title_sort |
Meadow management hay yields and nutritive value in the Mediterranean mountain regions of the Northeast of Portugal |
author |
Pires, Jaime |
author_facet |
Pires, Jaime Fernandes, Adelaide Bernardo, Adelino Pires, João Moreira, Nuno |
author_role |
author |
author2 |
Fernandes, Adelaide Bernardo, Adelino Pires, João Moreira, Nuno |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Pires, Jaime Fernandes, Adelaide Bernardo, Adelino Pires, João Moreira, Nuno |
dc.subject.por.fl_str_mv |
Crude protein Digestibility Dry-matter yield Hay Nitrogen fertilization |
topic |
Crude protein Digestibility Dry-matter yield Hay Nitrogen fertilization |
description |
To evaluate the possibility of improving hay nutritive value, six hay meadows were studied in the Northeast of Portugal from 1998 to 2000. The treatments were fertilization rates of O, 75 and 150 kg N/ha/y in combination with two cutting/grazing regimes: the usual for the area (NG) and a larger spring grazing period with meadows closed off for hay three weeks later (LG). Their effects on crude protein content, in vitro organic matter digestibility, and dry-matter, crude protein and metabolizable energy yields were evaluated. The treatments studied significantly influenced the parameters evaluated. Late spring grazing induced the greatest changes in the highest yielding meadows (M3 and M5) increasing nutritive values but decreasing the DM yield (-2t DM/ha, + 1 % CP and +3% IVOMD). However, the positive influences on CP content and IVOMD are not high enough to overcome the low values (Iess than 10% CP and 50% IVOMD) observed in meadows with hay growth periods longer than 60-70 days |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005 2005-01-01T00:00:00Z 2011-06-21T14:20:35Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10198/5291 |
url |
http://hdl.handle.net/10198/5291 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pires, Jaime; Fernandes, Adelaide; Bernardo, A.; Pires, João; Moreira, Nuno (2005) – Meadow management hay yields and nutritive value in the Mediterranean mountain regions of the Northeast of Portugal. Options Méditerranéennes, Séries A. ISSN 1016-121X. 67, p. 67-73 1016-121X |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
CIHEAM |
publisher.none.fl_str_mv |
CIHEAM |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799135197266968576 |