Terminação de novilhos aos 18 meses de idade, suplementados em pastagem de sorgo forrageiro
Ano de defesa: | 2015 |
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Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
|
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Zootecnia
|
Departamento: |
Zootecnia
|
País: |
BR
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/4376 |
Resumo: | This study aimed to evaluate the effects of three levels of supplementation offered in a quantity equivalent to 0.8%, 1.0% or 1.2 % of live weight on the performance, body development, and ingestive behavior and displacement pattern of 24 steers, with initial average age and weight of 16 months and 334.58 kg kept in continuous grazing in sorghum forage pasture (Sorghum bicolor). The completely randomized design was used with parcels subdivided in time, constituting of three treatments and four repetitions of area (spot) per treatment, and four repetitions (animals) per treatment on the analysis of ingestive behavior and displacement. No difference was observed for daily weight gain (1.188 kg day-1) and stocking rate (894.80 kg LW ha-1) among the studied treatments. The average weight gain per total area was 201.10 kg ha-1 between the treatments, however at the first period it was observed a gain of 113 kg ha-1 (P<0.05), not differing at the second and third periods (48.21 kg ha-1). It was observed greater leaf blades mass of sorghum (670.69 kg DM ha-1) and sorghum accumulation rate (77.83 kg DM ha-1 day) at the first 28 days of utilization of the pasture, being constant at the second and third periods (470.55 kg DM ha-1 and 53,52 kg DM ha-1 day, respectively). No difference was observed on the final body measures, frame and weight: height relation of the animals according to the level of supplementation. The advance of the phenotype cycle of the pasture promotes the decrease on the leaf blades mass, accumulation rate and an increase on the forage mass of others. The steers that received the equivalent to 0.8% of live weight in supplementation presented higher (P<0.05) grazing time during the morning shift (241.25 min. morning-1) compared to the animals of the 1.2% treatment that spent 172.5 min. morning-1 in this activity, while the 1% treatment remained intermediate (205. 42 min. morning-1). The grazing time decreased (P<0.05) with the increase of the utilization of the pasture, with averages of 565.83; 494.09 and 437.5 min. day-1 for the first, second and third periods, respectively. The idle time increased (P<0.05) from the first (423.33 min day-1) to the second and third periods (557.06 min. day-1). The levels of supplementation did not influenced the variables of displacement, however the structural variation of the pasture, influenced on the biting rate min-1 and the number of bitings per feed-1 station. |
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2016-05-042016-05-042015-11-17SILVA, Viviane Santos da. FINISHING OF STEERS AT 18 MONTHS OF AGE SUPPLEMENTED IN SORGHUM FORAGE PASTURE. 2015. 94 f. Tese (Doutorado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2015.http://repositorio.ufsm.br/handle/1/4376This study aimed to evaluate the effects of three levels of supplementation offered in a quantity equivalent to 0.8%, 1.0% or 1.2 % of live weight on the performance, body development, and ingestive behavior and displacement pattern of 24 steers, with initial average age and weight of 16 months and 334.58 kg kept in continuous grazing in sorghum forage pasture (Sorghum bicolor). The completely randomized design was used with parcels subdivided in time, constituting of three treatments and four repetitions of area (spot) per treatment, and four repetitions (animals) per treatment on the analysis of ingestive behavior and displacement. No difference was observed for daily weight gain (1.188 kg day-1) and stocking rate (894.80 kg LW ha-1) among the studied treatments. The average weight gain per total area was 201.10 kg ha-1 between the treatments, however at the first period it was observed a gain of 113 kg ha-1 (P<0.05), not differing at the second and third periods (48.21 kg ha-1). It was observed greater leaf blades mass of sorghum (670.69 kg DM ha-1) and sorghum accumulation rate (77.83 kg DM ha-1 day) at the first 28 days of utilization of the pasture, being constant at the second and third periods (470.55 kg DM ha-1 and 53,52 kg DM ha-1 day, respectively). No difference was observed on the final body measures, frame and weight: height relation of the animals according to the level of supplementation. The advance of the phenotype cycle of the pasture promotes the decrease on the leaf blades mass, accumulation rate and an increase on the forage mass of others. The steers that received the equivalent to 0.8% of live weight in supplementation presented higher (P<0.05) grazing time during the morning shift (241.25 min. morning-1) compared to the animals of the 1.2% treatment that spent 172.5 min. morning-1 in this activity, while the 1% treatment remained intermediate (205. 42 min. morning-1). The grazing time decreased (P<0.05) with the increase of the utilization of the pasture, with averages of 565.83; 494.09 and 437.5 min. day-1 for the first, second and third periods, respectively. The idle time increased (P<0.05) from the first (423.33 min day-1) to the second and third periods (557.06 min. day-1). The levels of supplementation did not influenced the variables of displacement, however the structural variation of the pasture, influenced on the biting rate min-1 and the number of bitings per feed-1 station.Objetivou-se avaliar os efeitos de três níveis de suplementação ofertados em quantidade equivalente a 0,8%, 1,0% ou 1,2 % do peso vivo sobre o desempenho, desenvolvimento corporal, comportamento ingestivo e padrões de deslocamento de 24 novilhos com idade e peso médio inicial de 16 meses e 334,58 kg, mantidos sob pastoreio continuo em pastagem de sorgo forrageiro (Sorghum bicolor). O delineamento utilizado foi inteiramente casualizado com parcelas subdividas no tempo, constituindo três tratamentos e quatro repetições de área (piquete) por tratamento, e quatro repetições (animais) por tratamento nas análises de comportamento ingestivo e deslocamento. Não foi verificada diferença no ganho diário (1,188 kg dia-1) e na carga animal (894,80 kg PV ha-1) entre os níveis de suplementação estudados. A média do ganho de peso por área total foi de 201,10 kg ha-1 entre os tratamentos, entretanto no primeiro período observou-se ganho de 113 kg ha-1 (P<0,05), não diferindo no segundo e terceiro períodos (48,21 kg ha-1). Foi observada maior massa de lâminas foliares de sorgo (670,69 kg MS ha-1) e taxa de acúmulo de sorgo (77,83 kg MS ha-1 dia) nos primeiros 28 dias de utilização da pastagem, mantendo-se constantes no segundo terceiro períodos (470,55 kg MS ha-1 e 53,5277,83 kg MS ha-1 dia, respectivamente). Não foi observada diferença nas medidas corporais finais, frame e relação peso: altura dos animais de acordo com o nível de suplementação. O avanço do ciclo fenotípico da pastagem promove a diminuição na massa de lâminas foliares, na taxa de acúmulo e aumento da massa de forragem de outros. Os novilhos que receberam o equivalente a 0,8% do peso vivo em suplementação apresentaram maior (P<0,05) tempo de pastejo durante o turno da manhã (241,25 min. manhã-1) comparado aos animais do tratamento 1,2% que dispenderam 172,5 min. manhã-1 nesta atividade, enquanto o tratamento 1% foi intermediário (205, 42 min. manhã-1). O tempo de pastejo diminuição (P<0,05) com o avanço da utilização da pastagem, com médias de 565,83; 494,09 e 437,5 min. dia-1 para o primeiro, segundo e terceiro períodos, respectivamente. O tempo de ócio aumentou (P<0,05) do primeiro (423,33 min. dia-1) para o segundo e terceiro períodos (557,06 min. dia-1). Os níveis de suplementação não influenciaram as variáveis de deslocamento, entretanto a variação estrutural da pastagem influenciou a taxa de bocados min.-1 e o número de bocados estação-1 alimentar.Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorapplication/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em ZootecniaUFSMBRZootecniaComportamento ingestivoMassa de lâminas foliaresGanho de pesoSorghum bicolorSuplementação energéticaTempo de pastejoEnergetic supplementationGrazing timeIngestive behaviorLeaf blades massSorghum bicolorWeight gainCNPQ::CIENCIAS AGRARIAS::ZOOTECNIATerminação de novilhos aos 18 meses de idade, suplementados em pastagem de sorgo forrageiroFinishing of steers at 18 months of age supplemented in sorghum forage pastureinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisBrondani, Ivan Luizhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4780102Z0Alves Filho, Dari Celestinohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4728123E5Gonçalves, Maria Beatriz Fernandezhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783908T6Silveira, Magali Floriano dahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4250119Y2Amaral, Glaucia Azevedo dohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4261950J6http://lattes.cnpq.br/0276140236060780Silva, Viviane Santos da500400000002400300300300300300300734f41d9-cb39-4ca4-81e7-b1d776cdc0dba761b3de-577e-4a2d-8b77-e4027f9274b4e5834d46-c91a-4bed-a42a-b8fbc60b47efaf832738-63e0-45ac-9b91-7f600b5a96eac3d11752-1371-4016-ae6d-e2e4496ab1cc03c7b407-93b9-4af7-a746-6c9840c9e6bdinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALSILVA, VIVIANE SANTOS DA.pdfapplication/pdf2431705http://repositorio.ufsm.br/bitstream/1/4376/1/SILVA%2c%20VIVIANE%20SANTOS%20DA.pdffc646c8d755ae1dd28a15aaf6f77fed7MD51TEXTSILVA, VIVIANE SANTOS DA.pdf.txtSILVA, VIVIANE SANTOS DA.pdf.txtExtracted texttext/plain165230http://repositorio.ufsm.br/bitstream/1/4376/2/SILVA%2c%20VIVIANE%20SANTOS%20DA.pdf.txt0a0f1e9b8c4e2aa27d29d25590357baeMD52THUMBNAILSILVA, VIVIANE SANTOS DA.pdf.jpgSILVA, VIVIANE SANTOS DA.pdf.jpgIM Thumbnailimage/jpeg4625http://repositorio.ufsm.br/bitstream/1/4376/3/SILVA%2c%20VIVIANE%20SANTOS%20DA.pdf.jpg17b2c3567d6dc6c25742669479c20e10MD531/43762022-08-09 11:17:19.184oai:repositorio.ufsm.br:1/4376Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2022-08-09T14:17:19Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Terminação de novilhos aos 18 meses de idade, suplementados em pastagem de sorgo forrageiro |
dc.title.alternative.eng.fl_str_mv |
Finishing of steers at 18 months of age supplemented in sorghum forage pasture |
title |
Terminação de novilhos aos 18 meses de idade, suplementados em pastagem de sorgo forrageiro |
spellingShingle |
Terminação de novilhos aos 18 meses de idade, suplementados em pastagem de sorgo forrageiro Silva, Viviane Santos da Comportamento ingestivo Massa de lâminas foliares Ganho de peso Sorghum bicolor Suplementação energética Tempo de pastejo Energetic supplementation Grazing time Ingestive behavior Leaf blades mass Sorghum bicolor Weight gain CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
title_short |
Terminação de novilhos aos 18 meses de idade, suplementados em pastagem de sorgo forrageiro |
title_full |
Terminação de novilhos aos 18 meses de idade, suplementados em pastagem de sorgo forrageiro |
title_fullStr |
Terminação de novilhos aos 18 meses de idade, suplementados em pastagem de sorgo forrageiro |
title_full_unstemmed |
Terminação de novilhos aos 18 meses de idade, suplementados em pastagem de sorgo forrageiro |
title_sort |
Terminação de novilhos aos 18 meses de idade, suplementados em pastagem de sorgo forrageiro |
author |
Silva, Viviane Santos da |
author_facet |
Silva, Viviane Santos da |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Brondani, Ivan Luiz |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4780102Z0 |
dc.contributor.referee1.fl_str_mv |
Alves Filho, Dari Celestino |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4728123E5 |
dc.contributor.referee2.fl_str_mv |
Gonçalves, Maria Beatriz Fernandez |
dc.contributor.referee2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783908T6 |
dc.contributor.referee3.fl_str_mv |
Silveira, Magali Floriano da |
dc.contributor.referee3Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4250119Y2 |
dc.contributor.referee4.fl_str_mv |
Amaral, Glaucia Azevedo do |
dc.contributor.referee4Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4261950J6 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/0276140236060780 |
dc.contributor.author.fl_str_mv |
Silva, Viviane Santos da |
contributor_str_mv |
Brondani, Ivan Luiz Alves Filho, Dari Celestino Gonçalves, Maria Beatriz Fernandez Silveira, Magali Floriano da Amaral, Glaucia Azevedo do |
dc.subject.por.fl_str_mv |
Comportamento ingestivo Massa de lâminas foliares Ganho de peso Sorghum bicolor Suplementação energética Tempo de pastejo |
topic |
Comportamento ingestivo Massa de lâminas foliares Ganho de peso Sorghum bicolor Suplementação energética Tempo de pastejo Energetic supplementation Grazing time Ingestive behavior Leaf blades mass Sorghum bicolor Weight gain CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
dc.subject.eng.fl_str_mv |
Energetic supplementation Grazing time Ingestive behavior Leaf blades mass Sorghum bicolor Weight gain |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
description |
This study aimed to evaluate the effects of three levels of supplementation offered in a quantity equivalent to 0.8%, 1.0% or 1.2 % of live weight on the performance, body development, and ingestive behavior and displacement pattern of 24 steers, with initial average age and weight of 16 months and 334.58 kg kept in continuous grazing in sorghum forage pasture (Sorghum bicolor). The completely randomized design was used with parcels subdivided in time, constituting of three treatments and four repetitions of area (spot) per treatment, and four repetitions (animals) per treatment on the analysis of ingestive behavior and displacement. No difference was observed for daily weight gain (1.188 kg day-1) and stocking rate (894.80 kg LW ha-1) among the studied treatments. The average weight gain per total area was 201.10 kg ha-1 between the treatments, however at the first period it was observed a gain of 113 kg ha-1 (P<0.05), not differing at the second and third periods (48.21 kg ha-1). It was observed greater leaf blades mass of sorghum (670.69 kg DM ha-1) and sorghum accumulation rate (77.83 kg DM ha-1 day) at the first 28 days of utilization of the pasture, being constant at the second and third periods (470.55 kg DM ha-1 and 53,52 kg DM ha-1 day, respectively). No difference was observed on the final body measures, frame and weight: height relation of the animals according to the level of supplementation. The advance of the phenotype cycle of the pasture promotes the decrease on the leaf blades mass, accumulation rate and an increase on the forage mass of others. The steers that received the equivalent to 0.8% of live weight in supplementation presented higher (P<0.05) grazing time during the morning shift (241.25 min. morning-1) compared to the animals of the 1.2% treatment that spent 172.5 min. morning-1 in this activity, while the 1% treatment remained intermediate (205. 42 min. morning-1). The grazing time decreased (P<0.05) with the increase of the utilization of the pasture, with averages of 565.83; 494.09 and 437.5 min. day-1 for the first, second and third periods, respectively. The idle time increased (P<0.05) from the first (423.33 min day-1) to the second and third periods (557.06 min. day-1). The levels of supplementation did not influenced the variables of displacement, however the structural variation of the pasture, influenced on the biting rate min-1 and the number of bitings per feed-1 station. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015-11-17 |
dc.date.accessioned.fl_str_mv |
2016-05-04 |
dc.date.available.fl_str_mv |
2016-05-04 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
SILVA, Viviane Santos da. FINISHING OF STEERS AT 18 MONTHS OF AGE SUPPLEMENTED IN SORGHUM FORAGE PASTURE. 2015. 94 f. Tese (Doutorado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2015. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/4376 |
identifier_str_mv |
SILVA, Viviane Santos da. FINISHING OF STEERS AT 18 MONTHS OF AGE SUPPLEMENTED IN SORGHUM FORAGE PASTURE. 2015. 94 f. Tese (Doutorado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2015. |
url |
http://repositorio.ufsm.br/handle/1/4376 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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500400000002 |
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400 300 300 300 300 300 300 |
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openAccess |
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Universidade Federal de Santa Maria |
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Programa de Pós-Graduação em Zootecnia |
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UFSM |
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BR |
dc.publisher.department.fl_str_mv |
Zootecnia |
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Universidade Federal de Santa Maria |
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