Suplementação estratégica em bovinos de corte
Autor(a) principal: | |
---|---|
Data de Publicação: | 2011 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFPel - Guaiaca |
Texto Completo: | http://repositorio.ufpel.edu.br/handle/ri/2597 |
Resumo: | Different objectives were evaluated with different supplementation strategies procedures in beef cattle in two distinct projects. In Experiment 1, Thirty-two multiparous Angus beef cows in moderate body condition score (3 in a 1 to 5 scale) received supplementary feeding during early lactation, for a short period (35d), to determine the effect on milk production and composition and cow and calf performances. Both groups were maintained in grazing native condition during the supplemental period. Milk composition and yield, cow and calf performance were evaluated at 0d (initial); 14d (middle) and 35d (final) of supplementation period. There was no effect (P>0.05) of supplementation on milk production or any milk component, and on calves performance. Milk composition was different between periods, where fat concentration was higher at the middle of supplementation and lactose was higher at the end of this period. Supplemented cows had a higher (P=0.03) average daily gain at the final supplemental period than cows in control group. In conclusion, beef cows in moderate body condition score may gain weight during the lactation period responding to supplementation in a short period, without any influence on milk production, composition in the calf performance. In Experiment 2, Four beef heifers fitted with ruminal and duodenal cannulas were used in a 5 x 4 incomplete Latin square experiment to determine the dietary replacement value of camelina meal for soybean meal in forage-based diets of beef cattle. Heifers were fed bromegrass hay (7.1% CP, 52.2% NDF on an OM basis) and the diet was formulated to meet the RDP requirement for the hay offered with supplemental soybean meal as a protein supplement. In an isonitrogenous basis, the treatments aimed to replace the soybean in five different levels (0, 25, 50, 75 and 100%) using camelina meal as a protein source. There was no difference (P>0.05) of increase levels of camelina meal addition as a replacement of soybean meal on OM, NDF and N digestibility. Consequently, we could not find any difference (P>0.05) on the patterns of ruminal fermentation end-products as well. The lack of differences in site and extent of digestion among dietary treatments is consistent with similar (P>0.05) performance for the heifers. Therefore, camelina meal seems to be a suitable alternative for supplementary soybean meal in forage-based diets consumed by beef cattle. |
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http://lattes.cnpq.br/5518025291169624http://lattes.cnpq.br/3890817098322664Moraes, José Carlos Ferrugemhttp://lattes.cnpq.br/0437548150480698Pimentel, Marcelo AlvesBrauner, Cássio Cassal2014-08-20T14:38:45Z2012-10-302014-08-20T14:38:45Z2011-06-21BRAUNER, Cássio Cassal. Suplementação estratégica em bovinos de corte. 2011. 77 f. Tese (Doutorado em Zootecnia) - Universidade Federal de Pelotas, Pelotas, 2011.http://repositorio.ufpel.edu.br/handle/ri/2597Different objectives were evaluated with different supplementation strategies procedures in beef cattle in two distinct projects. In Experiment 1, Thirty-two multiparous Angus beef cows in moderate body condition score (3 in a 1 to 5 scale) received supplementary feeding during early lactation, for a short period (35d), to determine the effect on milk production and composition and cow and calf performances. Both groups were maintained in grazing native condition during the supplemental period. Milk composition and yield, cow and calf performance were evaluated at 0d (initial); 14d (middle) and 35d (final) of supplementation period. There was no effect (P>0.05) of supplementation on milk production or any milk component, and on calves performance. Milk composition was different between periods, where fat concentration was higher at the middle of supplementation and lactose was higher at the end of this period. Supplemented cows had a higher (P=0.03) average daily gain at the final supplemental period than cows in control group. In conclusion, beef cows in moderate body condition score may gain weight during the lactation period responding to supplementation in a short period, without any influence on milk production, composition in the calf performance. In Experiment 2, Four beef heifers fitted with ruminal and duodenal cannulas were used in a 5 x 4 incomplete Latin square experiment to determine the dietary replacement value of camelina meal for soybean meal in forage-based diets of beef cattle. Heifers were fed bromegrass hay (7.1% CP, 52.2% NDF on an OM basis) and the diet was formulated to meet the RDP requirement for the hay offered with supplemental soybean meal as a protein supplement. In an isonitrogenous basis, the treatments aimed to replace the soybean in five different levels (0, 25, 50, 75 and 100%) using camelina meal as a protein source. There was no difference (P>0.05) of increase levels of camelina meal addition as a replacement of soybean meal on OM, NDF and N digestibility. Consequently, we could not find any difference (P>0.05) on the patterns of ruminal fermentation end-products as well. The lack of differences in site and extent of digestion among dietary treatments is consistent with similar (P>0.05) performance for the heifers. Therefore, camelina meal seems to be a suitable alternative for supplementary soybean meal in forage-based diets consumed by beef cattle.Com diferentes objetivos foram avaliados diferentes métodos estratégicos de suplementação para bovinos de corte, bem como as potencialidades de utilização dentro dos diferentes sistemas de produção em dois distintos projetos. No Experimento 1, Trinta e duas vacas Angus multíparas em escore de condição corporal moderado (3 em escala de 1 a 5) receberam suplementação alimentar no início de lactação, por um período curto (35 dias), para determinar o efeito sobre a produção e composição do leite e o desemenho de vacas e bezerros. A avaliação da produção de leite, desempenho ponderal de vacas e bezerros foram controlados no dia 0 (inicio); 14 (meio) e 35 (final) do período de suplementação. Não houve efeito (P>0,05) da suplementação na produção ou de qualquer componente do leite em ambos os grupos, bem como sobre o desempenho de bezerros. Composição do leite foi diferente entre os períodos, onde a gordura foi maior no meio da suplementação e lactose foi maior no final deste período. Vacas suplementadas apresentaram maior (P=0,03) ganho de peso médio diário no período final da suplementação. Vacas de corte podem ganhar peso durante o período de lactação em resposta a suplementação em um curto período, sem qualquer influência sobre a produção e composição do leite ou no desempenho dos bezerros. No Experimento 2, quatro novilhas de corte canuladas no rumen e duodeno foram utilizadas em um desenho experimental 5x4 Quadrado Latino incompleto, para determinar a utilização do farelo de camelina como um suplemento proteico em reposição ao farelo de soja. Os animais foram alimentados com feno (7,1% de PB, 52,2% de FDN em base de MO) e a dieta foi formulada para atender a exigência PDR para o feno oferecido com farelo de soja como suplemento proteico. Em uma base isoprotéica, os tratamentos foram calculados para substituir o farelo de soja em cinco diferentes níveis (0, 25, 50, 75 e 100%). Não foi encontrado efeito (P>0,05) da reposição do farelo de soja por farelo de camelina na digestão da matéria orgânica, fibra e digestibilidade do nitrogênio, bem como não hove diferenças (P>0,05) nos padrões de fermentação ruminal, refletindo em um desempenho ponderal semelhante (P>0,05). Sendo assim, o farelo de camelina parece ser uma adequada alternativa ao farelo de soja como um suplemento proteíco em dietas a base de forragem para bovinos de corte.application/pdfporUniversidade Federal de PelotasPrograma de Pós-Graduação em ZootecniaUFPelBRFaculdade de Agronomia Eliseu MacielDesempenho pós-partoProdução de leiteSuplementaçãoCo-produtoFarelo de sojaProteínaPostpartum performanceMilk productionSuplementationCo-productSoybean mealProteinCNPQ::CIENCIAS AGRARIAS::ZOOTECNIASuplementação estratégica em bovinos de corteStrategic supplementation in beef cattleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFPel - Guaiacainstname:Universidade Federal de Pelotas (UFPEL)instacron:UFPELORIGINALTese_Cassio_ Brauner.pdfapplication/pdf2626721http://guaiaca.ufpel.edu.br/xmlui/bitstream/123456789/2597/1/Tese_Cassio_%20Brauner.pdf77ac6ea597429da5d36c2eae67ddb2a4MD51open accessTEXTTese_Cassio_ Brauner.pdf.txtTese_Cassio_ Brauner.pdf.txtExtracted Texttext/plain98500http://guaiaca.ufpel.edu.br/xmlui/bitstream/123456789/2597/2/Tese_Cassio_%20Brauner.pdf.txt8d8f84a2f70ca4389717bb486fb868eaMD52open accessTHUMBNAILTese_Cassio_ Brauner.pdf.jpgTese_Cassio_ Brauner.pdf.jpgGenerated Thumbnailimage/jpeg1269http://guaiaca.ufpel.edu.br/xmlui/bitstream/123456789/2597/3/Tese_Cassio_%20Brauner.pdf.jpg878afdecbfeac50db11e7d3d3bfbc98aMD53open access123456789/25972023-01-16 18:10:09.112open accessoai:guaiaca.ufpel.edu.br:123456789/2597Repositório InstitucionalPUBhttp://repositorio.ufpel.edu.br/oai/requestrippel@ufpel.edu.br || repositorio@ufpel.edu.br || aline.batista@ufpel.edu.bropendoar:2023-01-16T21:10:09Repositório Institucional da UFPel - Guaiaca - Universidade Federal de Pelotas (UFPEL)false |
dc.title.por.fl_str_mv |
Suplementação estratégica em bovinos de corte |
dc.title.alternative.eng.fl_str_mv |
Strategic supplementation in beef cattle |
title |
Suplementação estratégica em bovinos de corte |
spellingShingle |
Suplementação estratégica em bovinos de corte Brauner, Cássio Cassal Desempenho pós-parto Produção de leite Suplementação Co-produto Farelo de soja Proteína Postpartum performance Milk production Suplementation Co-product Soybean meal Protein CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
title_short |
Suplementação estratégica em bovinos de corte |
title_full |
Suplementação estratégica em bovinos de corte |
title_fullStr |
Suplementação estratégica em bovinos de corte |
title_full_unstemmed |
Suplementação estratégica em bovinos de corte |
title_sort |
Suplementação estratégica em bovinos de corte |
author |
Brauner, Cássio Cassal |
author_facet |
Brauner, Cássio Cassal |
author_role |
author |
dc.contributor.authorLattes.por.fl_str_mv |
http://lattes.cnpq.br/5518025291169624 |
dc.contributor.advisorLattes.por.fl_str_mv |
http://lattes.cnpq.br/3890817098322664 |
dc.contributor.advisor-co1.fl_str_mv |
Moraes, José Carlos Ferrugem |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/0437548150480698 |
dc.contributor.advisor1.fl_str_mv |
Pimentel, Marcelo Alves |
dc.contributor.author.fl_str_mv |
Brauner, Cássio Cassal |
contributor_str_mv |
Moraes, José Carlos Ferrugem Pimentel, Marcelo Alves |
dc.subject.por.fl_str_mv |
Desempenho pós-parto Produção de leite Suplementação Co-produto Farelo de soja Proteína |
topic |
Desempenho pós-parto Produção de leite Suplementação Co-produto Farelo de soja Proteína Postpartum performance Milk production Suplementation Co-product Soybean meal Protein CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
dc.subject.eng.fl_str_mv |
Postpartum performance Milk production Suplementation Co-product Soybean meal Protein |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
description |
Different objectives were evaluated with different supplementation strategies procedures in beef cattle in two distinct projects. In Experiment 1, Thirty-two multiparous Angus beef cows in moderate body condition score (3 in a 1 to 5 scale) received supplementary feeding during early lactation, for a short period (35d), to determine the effect on milk production and composition and cow and calf performances. Both groups were maintained in grazing native condition during the supplemental period. Milk composition and yield, cow and calf performance were evaluated at 0d (initial); 14d (middle) and 35d (final) of supplementation period. There was no effect (P>0.05) of supplementation on milk production or any milk component, and on calves performance. Milk composition was different between periods, where fat concentration was higher at the middle of supplementation and lactose was higher at the end of this period. Supplemented cows had a higher (P=0.03) average daily gain at the final supplemental period than cows in control group. In conclusion, beef cows in moderate body condition score may gain weight during the lactation period responding to supplementation in a short period, without any influence on milk production, composition in the calf performance. In Experiment 2, Four beef heifers fitted with ruminal and duodenal cannulas were used in a 5 x 4 incomplete Latin square experiment to determine the dietary replacement value of camelina meal for soybean meal in forage-based diets of beef cattle. Heifers were fed bromegrass hay (7.1% CP, 52.2% NDF on an OM basis) and the diet was formulated to meet the RDP requirement for the hay offered with supplemental soybean meal as a protein supplement. In an isonitrogenous basis, the treatments aimed to replace the soybean in five different levels (0, 25, 50, 75 and 100%) using camelina meal as a protein source. There was no difference (P>0.05) of increase levels of camelina meal addition as a replacement of soybean meal on OM, NDF and N digestibility. Consequently, we could not find any difference (P>0.05) on the patterns of ruminal fermentation end-products as well. The lack of differences in site and extent of digestion among dietary treatments is consistent with similar (P>0.05) performance for the heifers. Therefore, camelina meal seems to be a suitable alternative for supplementary soybean meal in forage-based diets consumed by beef cattle. |
publishDate |
2011 |
dc.date.issued.fl_str_mv |
2011-06-21 |
dc.date.available.fl_str_mv |
2012-10-30 2014-08-20T14:38:45Z |
dc.date.accessioned.fl_str_mv |
2014-08-20T14:38:45Z |
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 |
BRAUNER, Cássio Cassal. Suplementação estratégica em bovinos de corte. 2011. 77 f. Tese (Doutorado em Zootecnia) - Universidade Federal de Pelotas, Pelotas, 2011. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufpel.edu.br/handle/ri/2597 |
identifier_str_mv |
BRAUNER, Cássio Cassal. Suplementação estratégica em bovinos de corte. 2011. 77 f. Tese (Doutorado em Zootecnia) - Universidade Federal de Pelotas, Pelotas, 2011. |
url |
http://repositorio.ufpel.edu.br/handle/ri/2597 |
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 |
dc.publisher.none.fl_str_mv |
Universidade Federal de Pelotas |
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Programa de Pós-Graduação em Zootecnia |
dc.publisher.initials.fl_str_mv |
UFPel |
dc.publisher.country.fl_str_mv |
BR |
dc.publisher.department.fl_str_mv |
Faculdade de Agronomia Eliseu Maciel |
publisher.none.fl_str_mv |
Universidade Federal de Pelotas |
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UFPEL |
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