EVALUATION OF ENERGY AND PROTEIN SOURCES ON DIETS FOR FINISHING BULLS

Detalhes bibliográficos
Autor(a) principal: Clarindo, Rafael Luis
Data de Publicação: 2008
Outros Autores: Santos, Flávio Augusto Portela, Bittar, Carla Maris Machado, Imaizumi, Hugo, Lima, Narson Vinicius dos Anjos, Pereira, Eduardo Menegueli
Tipo de documento: Artigo
Idioma: por
Título da fonte: Ciência animal brasileira (Online)
Texto Completo: https://revistas.ufg.br/vet/article/view/1144
Resumo: In this study it was evaluated the replacement of a true protein source (soybean meal) by a non-protein nitrogen source (urea) in combination with two starch sources, fine ground corn and fine ground sorghum, in diets for feedlot finished cattle. Twenty four yearling bulls (16 Nelore and 8 Canchim), averaging 417 kg initial body weight and 15 months old were used. Animals were housed in 24 individual concrete floor pens for 90 days. Randomized complete blocks were used for the statistical design. Rations contained 20% Tifton hay and 80% concentrate. Treatments were fine ground corn + soybean meal (MFS), fine ground corn + urea (MU), fine ground sorghum + soybean meal (SFS), fine ground sorghum + urea (SU). According to NRC (1996) all treatments had positive metabolizable protein balances. There were no effects of energy sources on animal performance (p<0.05). Animals fed soybean meal had greater average daily gain and feed efficiency than those fed urea (p<0.05).KEY WORDS: High grain, non protein N, rumen degradable protein, soybean meal, urea.
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spelling EVALUATION OF ENERGY AND PROTEIN SOURCES ON DIETS FOR FINISHING BULLSAVALIAÇÃO DE FONTES ENERGÉTICAS E PROTÉICAS NA DIETA BOVINOS CONFINADOS EM FASE DE TERMINAÇÃOProdução de bovinosIn this study it was evaluated the replacement of a true protein source (soybean meal) by a non-protein nitrogen source (urea) in combination with two starch sources, fine ground corn and fine ground sorghum, in diets for feedlot finished cattle. Twenty four yearling bulls (16 Nelore and 8 Canchim), averaging 417 kg initial body weight and 15 months old were used. Animals were housed in 24 individual concrete floor pens for 90 days. Randomized complete blocks were used for the statistical design. Rations contained 20% Tifton hay and 80% concentrate. Treatments were fine ground corn + soybean meal (MFS), fine ground corn + urea (MU), fine ground sorghum + soybean meal (SFS), fine ground sorghum + urea (SU). According to NRC (1996) all treatments had positive metabolizable protein balances. There were no effects of energy sources on animal performance (p<0.05). Animals fed soybean meal had greater average daily gain and feed efficiency than those fed urea (p<0.05).KEY WORDS: High grain, non protein N, rumen degradable protein, soybean meal, urea.No presente trabalho estudou-se a substituição de uma fonte de proteína verdadeira (farelo de soja) por uma fonte de nitrogênio não-protéico (uréia), em combinação com duas fontes de amido – o milho moído fino e o sorgo moído fino –, em rações para bovinos terminados em confinamento. Foram utilizados 24 machos não castrados, sendo 16 garrotes Nelore e 8 Canchim, com peso médio inicial de 417 kg e 15 meses de idade. Alojaram-se os animais individualmente em 24 baias (3 x 11 m) cobertas, com piso de concreto, durante noventa dias. Adotou-se o delineamento experimental de blocos ao acaso. Os animais foram alimentados com rações contendo 20% de feno de Tifton e 80% de concentrado, sendo comparados quatro tratamentos: MFS (milho moído fino + farelo de soja), MU (milho moído fino + uréia), SFS (sorgo moído fino + farelo de soja) e SU (sorgo moído fino + uréia). De acordo com o NRC (1996), todos os tratamentos apresentavam balanços positivos de proteína metabolizável (PM). Não houve efeito de fonte energética no desempenho animal (P>0,05). Os animais alimentados com farelo de soja apresentaram ganho de peso e eficiência alimentar superiores aos alimentados com uréia (P<0,05).PALAVRAS-CHAVES: Alto grão, farelo de soja, N não-protéico, proteína degradável no rúmen, uréia.Universidade Federal de Goiás2008-12-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por parespesquisaapplication/pdfhttps://revistas.ufg.br/vet/article/view/114410.5216/cab.v9i4.1144Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 9 No. 4 (2008); 902-910Ciência Animal Brasileira / Brazilian Animal Science; v. 9 n. 4 (2008); 902-9101809-68911518-2797reponame:Ciência animal brasileira (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/vet/article/view/1144/4350Clarindo, Rafael LuisSantos, Flávio Augusto PortelaBittar, Carla Maris MachadoImaizumi, HugoLima, Narson Vinicius dos AnjosPereira, Eduardo Menegueliinfo:eu-repo/semantics/openAccess2008-12-21T21:10:30Zoai:ojs.revistas.ufg.br:article/1144Revistahttps://revistas.ufg.br/vetPUBhttps://revistas.ufg.br/vet/oai||revistacab@gmail.com1809-68911518-2797opendoar:2024-05-21T19:54:49.773632Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv EVALUATION OF ENERGY AND PROTEIN SOURCES ON DIETS FOR FINISHING BULLS
AVALIAÇÃO DE FONTES ENERGÉTICAS E PROTÉICAS NA DIETA BOVINOS CONFINADOS EM FASE DE TERMINAÇÃO
title EVALUATION OF ENERGY AND PROTEIN SOURCES ON DIETS FOR FINISHING BULLS
spellingShingle EVALUATION OF ENERGY AND PROTEIN SOURCES ON DIETS FOR FINISHING BULLS
Clarindo, Rafael Luis
Produção de bovinos
title_short EVALUATION OF ENERGY AND PROTEIN SOURCES ON DIETS FOR FINISHING BULLS
title_full EVALUATION OF ENERGY AND PROTEIN SOURCES ON DIETS FOR FINISHING BULLS
title_fullStr EVALUATION OF ENERGY AND PROTEIN SOURCES ON DIETS FOR FINISHING BULLS
title_full_unstemmed EVALUATION OF ENERGY AND PROTEIN SOURCES ON DIETS FOR FINISHING BULLS
title_sort EVALUATION OF ENERGY AND PROTEIN SOURCES ON DIETS FOR FINISHING BULLS
author Clarindo, Rafael Luis
author_facet Clarindo, Rafael Luis
Santos, Flávio Augusto Portela
Bittar, Carla Maris Machado
Imaizumi, Hugo
Lima, Narson Vinicius dos Anjos
Pereira, Eduardo Menegueli
author_role author
author2 Santos, Flávio Augusto Portela
Bittar, Carla Maris Machado
Imaizumi, Hugo
Lima, Narson Vinicius dos Anjos
Pereira, Eduardo Menegueli
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Clarindo, Rafael Luis
Santos, Flávio Augusto Portela
Bittar, Carla Maris Machado
Imaizumi, Hugo
Lima, Narson Vinicius dos Anjos
Pereira, Eduardo Menegueli
dc.subject.por.fl_str_mv Produção de bovinos
topic Produção de bovinos
description In this study it was evaluated the replacement of a true protein source (soybean meal) by a non-protein nitrogen source (urea) in combination with two starch sources, fine ground corn and fine ground sorghum, in diets for feedlot finished cattle. Twenty four yearling bulls (16 Nelore and 8 Canchim), averaging 417 kg initial body weight and 15 months old were used. Animals were housed in 24 individual concrete floor pens for 90 days. Randomized complete blocks were used for the statistical design. Rations contained 20% Tifton hay and 80% concentrate. Treatments were fine ground corn + soybean meal (MFS), fine ground corn + urea (MU), fine ground sorghum + soybean meal (SFS), fine ground sorghum + urea (SU). According to NRC (1996) all treatments had positive metabolizable protein balances. There were no effects of energy sources on animal performance (p<0.05). Animals fed soybean meal had greater average daily gain and feed efficiency than those fed urea (p<0.05).KEY WORDS: High grain, non protein N, rumen degradable protein, soybean meal, urea.
publishDate 2008
dc.date.none.fl_str_mv 2008-12-21
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
pesquisa
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/vet/article/view/1144
10.5216/cab.v9i4.1144
url https://revistas.ufg.br/vet/article/view/1144
identifier_str_mv 10.5216/cab.v9i4.1144
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/vet/article/view/1144/4350
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 Goiás
publisher.none.fl_str_mv Universidade Federal de Goiás
dc.source.none.fl_str_mv Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 9 No. 4 (2008); 902-910
Ciência Animal Brasileira / Brazilian Animal Science; v. 9 n. 4 (2008); 902-910
1809-6891
1518-2797
reponame:Ciência animal brasileira (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Ciência animal brasileira (Online)
collection Ciência animal brasileira (Online)
repository.name.fl_str_mv Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv ||revistacab@gmail.com
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