Consumo e desempenho de ovinos mantidos em pastagem de Cynodon dactylon var.dactylon com diferentes níveis de oferta de lâminas foliares verdes
Autor(a) principal: | |
---|---|
Data de Publicação: | 2010 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Manancial - Repositório Digital da UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/10751 |
Resumo: | The effect of different allowances (3, 6, or 9 kg of dry matter (DM)/100 kg of body weight (BW)) of leaf lamina (ALL) on the traits of a bermudagrass pasture Cynodon dactylon var. dactylon) and on the performance of sheep was evaluated. The experiment was conducted in five periods of 28 days, from october 2008 to february 2009, in a fully randomized arrangement with three replications of area per treatment and three tester sheep in each area. There was statistical interaction (P<0,05) between period and forage allowance for the following variables: forage mass (2.878 to 6.580 kg of DM ha-1), proportions of stem in the DM (22,2 to 52,9%), proportions of dead material in the DM (20,5 a 58,4%), and animal stocking rate (652 to 2.428 kg of BW ha-1). The ALL did not affect (P<0,05) the leaf proportion of the pasture (18,6 to 22,2%) and the growth rate of leaf lamina (12 to 39 kg ha -1 day-1 of DM). However, those variables varied quadratically and cubically (P<0,05) according to the periods, respectively. Herbage chemical composition also was not affected by the treatments, although the neutral detergent fiber content and the in vitro digestibility had varied quadratically (P<0,05), while nitrogen and dry matter content varied cubically (P<0,05) according to the periods. A statistical interaction between period and ALL was found for animal performance (P<0,05). Excepting the second experimental period where the average daily gain (ADG) ranged from 54 to 99 g animal-1 day-1, ADG presented negative values during the experiment. On the other hand, estimated forage intake was not affected by the ALL levels, and averaged 1.044 g of DM animal-1 dia-1. It was concluded that the ALL level of bermudagrass does not affected herbage growth, and irregularly influenced sheep performance. However, adverse climatic conditions during the experiment markedly influenced the results obtained. |
id |
UFSM_48898bbbbc12539cd43be27d7d4a51e8 |
---|---|
oai_identifier_str |
oai:repositorio.ufsm.br:1/10751 |
network_acronym_str |
UFSM |
network_name_str |
Manancial - Repositório Digital da UFSM |
repository_id_str |
|
spelling |
Consumo e desempenho de ovinos mantidos em pastagem de Cynodon dactylon var.dactylon com diferentes níveis de oferta de lâminas foliares verdesForage intake and performance of sheep grazzing Cynodon dactylon var. dactylon under different allowances of leaf laminaGrama-sedaGramínea tropicalPastejo contínuoValor nutritivoBermudagrassTropical grassContinuous grazingNutritive valueCNPQ::CIENCIAS AGRARIAS::ZOOTECNIAThe effect of different allowances (3, 6, or 9 kg of dry matter (DM)/100 kg of body weight (BW)) of leaf lamina (ALL) on the traits of a bermudagrass pasture Cynodon dactylon var. dactylon) and on the performance of sheep was evaluated. The experiment was conducted in five periods of 28 days, from october 2008 to february 2009, in a fully randomized arrangement with three replications of area per treatment and three tester sheep in each area. There was statistical interaction (P<0,05) between period and forage allowance for the following variables: forage mass (2.878 to 6.580 kg of DM ha-1), proportions of stem in the DM (22,2 to 52,9%), proportions of dead material in the DM (20,5 a 58,4%), and animal stocking rate (652 to 2.428 kg of BW ha-1). The ALL did not affect (P<0,05) the leaf proportion of the pasture (18,6 to 22,2%) and the growth rate of leaf lamina (12 to 39 kg ha -1 day-1 of DM). However, those variables varied quadratically and cubically (P<0,05) according to the periods, respectively. Herbage chemical composition also was not affected by the treatments, although the neutral detergent fiber content and the in vitro digestibility had varied quadratically (P<0,05), while nitrogen and dry matter content varied cubically (P<0,05) according to the periods. A statistical interaction between period and ALL was found for animal performance (P<0,05). Excepting the second experimental period where the average daily gain (ADG) ranged from 54 to 99 g animal-1 day-1, ADG presented negative values during the experiment. On the other hand, estimated forage intake was not affected by the ALL levels, and averaged 1.044 g of DM animal-1 dia-1. It was concluded that the ALL level of bermudagrass does not affected herbage growth, and irregularly influenced sheep performance. However, adverse climatic conditions during the experiment markedly influenced the results obtained.Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorFoi avaliado o efeito de diferentes níveis de oferta (3, 6 ou 9 kg de matéria seca (MS)/100 kg de peso vivo (PV)) de lâminas foliares verdes (OFLV) sobre os atributos da pastagem de grama-seda (Cynodon dactylon var.dactylon) e sobre o desempenho de ovinos. O experimento foi conduzido em cinco períodos de 28 dias, entre outubro de 2008 e fevereiro de 2009, em um delineamento inteiramente casualizado, com três repetições de área por tratamento e com três ovinos testers por piquete. A massa de forragem (2.878 a 6.580 kg de MS ha-1), a proporção de colmo na MS (22,2 a 52,9%), a proporção de material morto na MS (20,5 a 58,4%) e a carga animal (652 a 2.428 kg de PV ha-1) observadas no presente estudo sofreram interação (P<0,05) entre período e oferta. A OFLV não influenciou na proporção de folhas da pastagem na MS (18,6 a 22,2%) e na taxa de acúmulo de lâminas foliares (12 a 39 kg ha-1 dia-1 de MS), entretanto estas variaram quadraticamente e cubicamente (P<0,05) em relação aos períodos de avaliação respectivamente. A composição química da pastagem não variou conforme a OFLV, porém comportou-se quadraticamente (P<0,05) quanto à fibra em detergente neutro e digestibilidade in vitro da MS e cubicamente (P<0,05) quanto a nitrogênio e MS, durante os períodos. O desempenho animal foi afetado pela interação entre tratamento e período (P<0,05) de modo que o ganho médio diário (GMD) de PV foi negativo na maioria dos períodos, com exceção do segundo onde se observou GMD entre 54 e 99 g animal-1 dia-1. Entretanto o consumo estimado de forragem não foi afetado pelos níveis de OFLV, e foi em média de 1.044g de MS animal-1 dia-1. Conclui-se que o nível de OFLV de grama-seda, não afetou claramente o crescimento das plantas e influenciou de forma irregular o desempenho de ovinos. Entretanto as condições climáticas adversas durante o período experimental influenciaram marcadamente nos resultados obtidos.Universidade Federal de Santa MariaBRZootecniaUFSMPrograma de Pós-Graduação em ZootecniaKozloski, Gilberto Vilmarhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4797689T5Poli, Cesar Henrique Espirito Candalhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4727995P3Ribeiro Filho, Henrique Mendonça Nuneshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4799882P9Santos, Marcia Vendrusculo dos2010-05-112010-05-112010-02-19info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfapplication/pdfSANTOS, Marcia Vendrusculo dos. FORAGE INTAKE AND PERFORMANCE OF SHEEP GRAZZING Cynodon dactylon var. dactylon UNDER DIFFERENT ALLOWANCES OF LEAF LAMINA. 2010. 66 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2010.http://repositorio.ufsm.br/handle/1/10751porinfo:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2022-02-21T17:29:12Zoai:repositorio.ufsm.br:1/10751Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2022-02-21T17:29:12Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Consumo e desempenho de ovinos mantidos em pastagem de Cynodon dactylon var.dactylon com diferentes níveis de oferta de lâminas foliares verdes Forage intake and performance of sheep grazzing Cynodon dactylon var. dactylon under different allowances of leaf lamina |
title |
Consumo e desempenho de ovinos mantidos em pastagem de Cynodon dactylon var.dactylon com diferentes níveis de oferta de lâminas foliares verdes |
spellingShingle |
Consumo e desempenho de ovinos mantidos em pastagem de Cynodon dactylon var.dactylon com diferentes níveis de oferta de lâminas foliares verdes Santos, Marcia Vendrusculo dos Grama-seda Gramínea tropical Pastejo contínuo Valor nutritivo Bermudagrass Tropical grass Continuous grazing Nutritive value CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
title_short |
Consumo e desempenho de ovinos mantidos em pastagem de Cynodon dactylon var.dactylon com diferentes níveis de oferta de lâminas foliares verdes |
title_full |
Consumo e desempenho de ovinos mantidos em pastagem de Cynodon dactylon var.dactylon com diferentes níveis de oferta de lâminas foliares verdes |
title_fullStr |
Consumo e desempenho de ovinos mantidos em pastagem de Cynodon dactylon var.dactylon com diferentes níveis de oferta de lâminas foliares verdes |
title_full_unstemmed |
Consumo e desempenho de ovinos mantidos em pastagem de Cynodon dactylon var.dactylon com diferentes níveis de oferta de lâminas foliares verdes |
title_sort |
Consumo e desempenho de ovinos mantidos em pastagem de Cynodon dactylon var.dactylon com diferentes níveis de oferta de lâminas foliares verdes |
author |
Santos, Marcia Vendrusculo dos |
author_facet |
Santos, Marcia Vendrusculo dos |
author_role |
author |
dc.contributor.none.fl_str_mv |
Kozloski, Gilberto Vilmar http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4797689T5 Poli, Cesar Henrique Espirito Candal http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4727995P3 Ribeiro Filho, Henrique Mendonça Nunes http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4799882P9 |
dc.contributor.author.fl_str_mv |
Santos, Marcia Vendrusculo dos |
dc.subject.por.fl_str_mv |
Grama-seda Gramínea tropical Pastejo contínuo Valor nutritivo Bermudagrass Tropical grass Continuous grazing Nutritive value CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
topic |
Grama-seda Gramínea tropical Pastejo contínuo Valor nutritivo Bermudagrass Tropical grass Continuous grazing Nutritive value CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
description |
The effect of different allowances (3, 6, or 9 kg of dry matter (DM)/100 kg of body weight (BW)) of leaf lamina (ALL) on the traits of a bermudagrass pasture Cynodon dactylon var. dactylon) and on the performance of sheep was evaluated. The experiment was conducted in five periods of 28 days, from october 2008 to february 2009, in a fully randomized arrangement with three replications of area per treatment and three tester sheep in each area. There was statistical interaction (P<0,05) between period and forage allowance for the following variables: forage mass (2.878 to 6.580 kg of DM ha-1), proportions of stem in the DM (22,2 to 52,9%), proportions of dead material in the DM (20,5 a 58,4%), and animal stocking rate (652 to 2.428 kg of BW ha-1). The ALL did not affect (P<0,05) the leaf proportion of the pasture (18,6 to 22,2%) and the growth rate of leaf lamina (12 to 39 kg ha -1 day-1 of DM). However, those variables varied quadratically and cubically (P<0,05) according to the periods, respectively. Herbage chemical composition also was not affected by the treatments, although the neutral detergent fiber content and the in vitro digestibility had varied quadratically (P<0,05), while nitrogen and dry matter content varied cubically (P<0,05) according to the periods. A statistical interaction between period and ALL was found for animal performance (P<0,05). Excepting the second experimental period where the average daily gain (ADG) ranged from 54 to 99 g animal-1 day-1, ADG presented negative values during the experiment. On the other hand, estimated forage intake was not affected by the ALL levels, and averaged 1.044 g of DM animal-1 dia-1. It was concluded that the ALL level of bermudagrass does not affected herbage growth, and irregularly influenced sheep performance. However, adverse climatic conditions during the experiment markedly influenced the results obtained. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-05-11 2010-05-11 2010-02-19 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
SANTOS, Marcia Vendrusculo dos. FORAGE INTAKE AND PERFORMANCE OF SHEEP GRAZZING Cynodon dactylon var. dactylon UNDER DIFFERENT ALLOWANCES OF LEAF LAMINA. 2010. 66 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2010. http://repositorio.ufsm.br/handle/1/10751 |
identifier_str_mv |
SANTOS, Marcia Vendrusculo dos. FORAGE INTAKE AND PERFORMANCE OF SHEEP GRAZZING Cynodon dactylon var. dactylon UNDER DIFFERENT ALLOWANCES OF LEAF LAMINA. 2010. 66 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2010. |
url |
http://repositorio.ufsm.br/handle/1/10751 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria BR Zootecnia UFSM Programa de Pós-Graduação em Zootecnia |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria BR Zootecnia UFSM Programa de Pós-Graduação em Zootecnia |
dc.source.none.fl_str_mv |
reponame:Manancial - Repositório Digital da UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Manancial - Repositório Digital da UFSM |
collection |
Manancial - Repositório Digital da UFSM |
repository.name.fl_str_mv |
Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
_version_ |
1805922157537001472 |