DIFFERENT METABOLIZABLE PROTEIN LEVELS IN SUGAR CANE DIETS TO LACTATING DAIRY COWS
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência animal brasileira (Online) |
Texto Completo: | https://revistas.ufg.br/vet/article/view/1192 |
Resumo: | The objective of this trial was to evaluate the effect of different metabolizable protein (MP) levels on lactating dairy cows fed sugarcane diets. Eighteen lactating cows, divided in two groups of milk production (10 or 18 kg/d), were used, being data analyzed separately. Three treatments with varying levels of MP and rumen degradable protein (RDP), by different urea and soybean meal inclusions, were evaluated: 1) 1% of the mixture urea and ammonium sulfate on sugarcane in natura (control); 2) adequate levels of RDP and MP; and 3) adequate levels of RDP and MP in excess. A 3 x 3 Latin Square design was utilized with three replicates for each production group. There were not statistical difference between treatments (P>0.05) for dry matter intake, milk production, fat and protein milk levels, milk urea nitrogen (MUN) and plasma urea nitrogen (PUN), independently of the milk production level. Recommendation of sugarcane diet in nature correction by adding 1% of urea-ammonium sulfate was adequate for cows producing 10 or 18 kg milk/d. There were no advantages of increasing MP levels for those cows. KEY WORDS: Milk production, protein sources, rumen degradable protein, urea. |
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DIFFERENT METABOLIZABLE PROTEIN LEVELS IN SUGAR CANE DIETS TO LACTATING DAIRY COWSDIFERENTES TEORES DE PROTEÍNA METABOLIZÁVEL EM RAÇÕES COM CANA-DE-AÇÚCAR PARA VACAS EM LACTAÇÃOThe objective of this trial was to evaluate the effect of different metabolizable protein (MP) levels on lactating dairy cows fed sugarcane diets. Eighteen lactating cows, divided in two groups of milk production (10 or 18 kg/d), were used, being data analyzed separately. Three treatments with varying levels of MP and rumen degradable protein (RDP), by different urea and soybean meal inclusions, were evaluated: 1) 1% of the mixture urea and ammonium sulfate on sugarcane in natura (control); 2) adequate levels of RDP and MP; and 3) adequate levels of RDP and MP in excess. A 3 x 3 Latin Square design was utilized with three replicates for each production group. There were not statistical difference between treatments (P>0.05) for dry matter intake, milk production, fat and protein milk levels, milk urea nitrogen (MUN) and plasma urea nitrogen (PUN), independently of the milk production level. Recommendation of sugarcane diet in nature correction by adding 1% of urea-ammonium sulfate was adequate for cows producing 10 or 18 kg milk/d. There were no advantages of increasing MP levels for those cows. KEY WORDS: Milk production, protein sources, rumen degradable protein, urea.O presente trabalho teve como objetivo avaliar o efeito de diferentes teores de proteína metabolizável (PM) na ração de vacas lactantes alimentadas com cana-de-açúcar. Foram utilizadas dezoito vacas em lactação divididas em dois grupos de produção de leite (10 ou 18 kg/d), sendo os dados analisados separadamente. Avaliaram-se três tratamentos variando-se a dose de PM e proteína degradável no rúmen (PDR) da ração, a partir de diferentes inclusões de uréia ou farelo de soja: 1) 1% da mistura uréia e sulfato de amônia na cana-de-açúcar in natura (controle); 2) teores adequados de PDR e PM; e 3) teores adequados de PDR e excessivos de PM. O delineamento estatístico foi o quadrado latino 3 x 3 com três repetições para cada grupo. Não se observaram diferenças estatísticas dos tratamentos (P>0,05) sobre o consumo de matéria seca, a produção de leite, os teores de gordura e de proteína do leite, as concentrações de nitrogênio uréico no leite (NUL) e no plasma (NUP), independentemente do nível de produção dos animais. A recomendação de corrigir as rações com cana-de-açúcar in natura com 1% da mistura uréia-sulfato de amônia foi adequada tanto para vacas produzindo 10 quanto 18 kg de leite/d. Não houve vantagem em aumentar o suprimento de PM para essas vacas. PALAVRAS-CHAVES: Fontes protéicas, produção de leite, proteína degradável no rúmen, uréia.Universidade Federal de Goiás2008-07-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/vet/article/view/119210.5216/cab.v9i2.1192Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 9 No. 2 (2008); 309-318Ciência Animal Brasileira / Brazilian Animal Science; v. 9 n. 2 (2008); 309-3181809-68911518-2797reponame:Ciência animal brasileira (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/vet/article/view/1192/3703Voltolini, Tadeu VinhasSantos, Flávio Augusto PortelaMartinez, Junio CesarBittar, Carla Maris MachadoImaizumi, HugoCortinhas, Cristina Simõesinfo:eu-repo/semantics/openAccess2012-09-18T23:32:43Zoai:ojs.revistas.ufg.br:article/1192Revistahttps://revistas.ufg.br/vetPUBhttps://revistas.ufg.br/vet/oai||revistacab@gmail.com1809-68911518-2797opendoar:2024-05-21T19:54:51.379268Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
DIFFERENT METABOLIZABLE PROTEIN LEVELS IN SUGAR CANE DIETS TO LACTATING DAIRY COWS DIFERENTES TEORES DE PROTEÍNA METABOLIZÁVEL EM RAÇÕES COM CANA-DE-AÇÚCAR PARA VACAS EM LACTAÇÃO |
title |
DIFFERENT METABOLIZABLE PROTEIN LEVELS IN SUGAR CANE DIETS TO LACTATING DAIRY COWS |
spellingShingle |
DIFFERENT METABOLIZABLE PROTEIN LEVELS IN SUGAR CANE DIETS TO LACTATING DAIRY COWS Voltolini, Tadeu Vinhas |
title_short |
DIFFERENT METABOLIZABLE PROTEIN LEVELS IN SUGAR CANE DIETS TO LACTATING DAIRY COWS |
title_full |
DIFFERENT METABOLIZABLE PROTEIN LEVELS IN SUGAR CANE DIETS TO LACTATING DAIRY COWS |
title_fullStr |
DIFFERENT METABOLIZABLE PROTEIN LEVELS IN SUGAR CANE DIETS TO LACTATING DAIRY COWS |
title_full_unstemmed |
DIFFERENT METABOLIZABLE PROTEIN LEVELS IN SUGAR CANE DIETS TO LACTATING DAIRY COWS |
title_sort |
DIFFERENT METABOLIZABLE PROTEIN LEVELS IN SUGAR CANE DIETS TO LACTATING DAIRY COWS |
author |
Voltolini, Tadeu Vinhas |
author_facet |
Voltolini, Tadeu Vinhas Santos, Flávio Augusto Portela Martinez, Junio Cesar Bittar, Carla Maris Machado Imaizumi, Hugo Cortinhas, Cristina Simões |
author_role |
author |
author2 |
Santos, Flávio Augusto Portela Martinez, Junio Cesar Bittar, Carla Maris Machado Imaizumi, Hugo Cortinhas, Cristina Simões |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Voltolini, Tadeu Vinhas Santos, Flávio Augusto Portela Martinez, Junio Cesar Bittar, Carla Maris Machado Imaizumi, Hugo Cortinhas, Cristina Simões |
description |
The objective of this trial was to evaluate the effect of different metabolizable protein (MP) levels on lactating dairy cows fed sugarcane diets. Eighteen lactating cows, divided in two groups of milk production (10 or 18 kg/d), were used, being data analyzed separately. Three treatments with varying levels of MP and rumen degradable protein (RDP), by different urea and soybean meal inclusions, were evaluated: 1) 1% of the mixture urea and ammonium sulfate on sugarcane in natura (control); 2) adequate levels of RDP and MP; and 3) adequate levels of RDP and MP in excess. A 3 x 3 Latin Square design was utilized with three replicates for each production group. There were not statistical difference between treatments (P>0.05) for dry matter intake, milk production, fat and protein milk levels, milk urea nitrogen (MUN) and plasma urea nitrogen (PUN), independently of the milk production level. Recommendation of sugarcane diet in nature correction by adding 1% of urea-ammonium sulfate was adequate for cows producing 10 or 18 kg milk/d. There were no advantages of increasing MP levels for those cows. KEY WORDS: Milk production, protein sources, rumen degradable protein, urea. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-07-09 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado por pares |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/vet/article/view/1192 10.5216/cab.v9i2.1192 |
url |
https://revistas.ufg.br/vet/article/view/1192 |
identifier_str_mv |
10.5216/cab.v9i2.1192 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/vet/article/view/1192/3703 |
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. 2 (2008); 309-318 Ciência Animal Brasileira / Brazilian Animal Science; v. 9 n. 2 (2008); 309-318 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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1799874782967103488 |