Rações farelada, peletizada e extrusada na alimentação e produção de vacas leiteiras

Detalhes bibliográficos
Autor(a) principal: Wernersbach Filho, Humberto Luiz
Data de Publicação: 2003
Tipo de documento: Dissertação
Idioma: por
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://locus.ufv.br/handle/123456789/5852
Resumo: This work was carried out at the dairy cows Teaching, Research and extension unit at the Department of Animal Science of the Federal University of Viçosa with the objective of evaluating: the intake and apparent digestibility of nutrients, milk production and composition, ruminal pH and ammonia, ruminal degradability of dry matter and crude protein, urea concentration in the plasma in cows fed ration processed by different methods. Sixteen dairy holstein cows, purebreds and crossbred, in two milk production levels: 30.0 kg/day and 20.0 kg/day, were distributed equitatively in two latin squares balanced for each production level. The experiment was constituted of four periods with duration of 15 days each. The experimental diets were isoproteic, based on corn silage with forage: concentrate ratio of 50:50 to the level of 30.0 kg/day and 60:40 to the level of 20.0 Kg/day, in dry matter basis. The treatments were constituted of four concentrate rations: meal form (MR), pelleted (PR) and extruded (ER), with 27% and 84% of crude protein (CP) and total digestible nutrients(TDN), respectively and high energy ration with part of extruded elements (HER), with 27% and 86% of crude protein and TDN, respectively. The animals were housed in individual stalls like Tie Stall and fed ad libitum. The excretion of fecal dry matter was estimated by indigestible acid detergent fiber (ADFi). Rumen fluid was collected by esophagian tube. The urine collection was made by spot test . Blood was collected four hours after the morning feeding, being used heparin as anticoagulant. The in situ degradability was estimated with nylon pockets inside the animal rumen. The dry matter (DM) intake was not different among the experimental diets. Digestibility of the DM there was no difference, but the digestibility of the neutral detergent fiber (44,35%) was lower (P<0,05) to ER (extruded) and digestibility of the crude protein was lower (P<0,05) to ER (72,36%), compare to the MR meal). The milk production was larger (P<0,05) for the extruded diet (ER) (29.0 kg/day), in higher level production, however, in lower level there was no difference. The milk composition was not different among the diet to higher level production. Inside each time (before and three hours after the morning feeding) there was no difference in the pH values and amoniacal nitrogen compounds (N-NH3) among the experimental diets. There was no difference in ruminal N-NH3 concentration on time 0, however, at three hours after feeding, ER presented lower (P<0,05) ruminal N-NH3 concentration. The ruminal degradability of crude protein and DM were higher to PR and especiallly in ER. There was no difference in the concentration of plasmatic urea and fractional urine excretions.
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spelling Wernersbach Filho, Humberto Luizhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4773300H6Campos, José Maurício de Souzahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4798551U0Valadares Filho, Sebastião de Camposhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787028J6Queiroz, Augusto César dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783006P5Valadares, Rilene Ferreira Dinizhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787025E4Lana, Rogério de Paulahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782867Y62015-03-26T13:55:30Z2007-10-152015-03-26T13:55:30Z2003-05-09WERNERSBACH FILHO, Humberto Luiz. Meal, pelleted and extruded concentrates in the fed and milk yield in dairy cows. 2003. 56 f. Dissertação (Mestrado em Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul) - Universidade Federal de Viçosa, Viçosa, 2003.http://locus.ufv.br/handle/123456789/5852This work was carried out at the dairy cows Teaching, Research and extension unit at the Department of Animal Science of the Federal University of Viçosa with the objective of evaluating: the intake and apparent digestibility of nutrients, milk production and composition, ruminal pH and ammonia, ruminal degradability of dry matter and crude protein, urea concentration in the plasma in cows fed ration processed by different methods. Sixteen dairy holstein cows, purebreds and crossbred, in two milk production levels: 30.0 kg/day and 20.0 kg/day, were distributed equitatively in two latin squares balanced for each production level. The experiment was constituted of four periods with duration of 15 days each. The experimental diets were isoproteic, based on corn silage with forage: concentrate ratio of 50:50 to the level of 30.0 kg/day and 60:40 to the level of 20.0 Kg/day, in dry matter basis. The treatments were constituted of four concentrate rations: meal form (MR), pelleted (PR) and extruded (ER), with 27% and 84% of crude protein (CP) and total digestible nutrients(TDN), respectively and high energy ration with part of extruded elements (HER), with 27% and 86% of crude protein and TDN, respectively. The animals were housed in individual stalls like Tie Stall and fed ad libitum. The excretion of fecal dry matter was estimated by indigestible acid detergent fiber (ADFi). Rumen fluid was collected by esophagian tube. The urine collection was made by spot test . Blood was collected four hours after the morning feeding, being used heparin as anticoagulant. The in situ degradability was estimated with nylon pockets inside the animal rumen. The dry matter (DM) intake was not different among the experimental diets. Digestibility of the DM there was no difference, but the digestibility of the neutral detergent fiber (44,35%) was lower (P<0,05) to ER (extruded) and digestibility of the crude protein was lower (P<0,05) to ER (72,36%), compare to the MR meal). The milk production was larger (P<0,05) for the extruded diet (ER) (29.0 kg/day), in higher level production, however, in lower level there was no difference. The milk composition was not different among the diet to higher level production. Inside each time (before and three hours after the morning feeding) there was no difference in the pH values and amoniacal nitrogen compounds (N-NH3) among the experimental diets. There was no difference in ruminal N-NH3 concentration on time 0, however, at three hours after feeding, ER presented lower (P<0,05) ruminal N-NH3 concentration. The ruminal degradability of crude protein and DM were higher to PR and especiallly in ER. There was no difference in the concentration of plasmatic urea and fractional urine excretions.O presente trabalho foi realizado na Unidade de Ensino, Pesquisa e Extensão em Gado de Leite do Departamento de Zootecnia, na Universidade Federal de Viçosa, objetivando avaliar: o consumo e a digestibilidade aparente dos nutrientes, a produção e composição do leite, o pH e a amônia ruminal, a degradabilidade ruminal da matéria seca e proteína bruta, e concentração de uréia no plasma e excreções urinárias de vacas leiteiras alimentadas com diferentes formas de processamento da ração concentrada. Foram utilizadas 16 vacas da raça holandesa, puras e mestiças, em dois níveis de produção de leite: 30,0 kg/dia e 20,0 kg/dia, que foram distribuídas equitativamente em dois quadrados latinos balanceados para cada nível de produção. O Experimento foi constituído por quatro períodos, com duração de 15 dias cada. As dietas experimentais foram isoprotéicas, constituídas à base de silagem de milho (Zea mays) com relação volumoso: concentrado de 50:50 para o nível de 30,0 kg/dia e 60:40 para o nível de 20,0 kg/dia, com base na matéria seca. Os tratamentos foram constituídos de quatro rações concentradas sendo: ração farelada (RF); ração peletizada (RP) e ração extrusada (RE), com 27% com de proteína bruta (PB) e 84% de nutrientes digestíveis totais (NDT) e ração de alta energia parcialmente processada (RAE), com 27% de PB e 86% de NDT. Os animais foram mantidos em baias individuais do tipo Tie Stall , onde receberam alimentação ad libitun. A excreção de matéria seca fecal foi estimada através da fibra em detergente ácido indigestível (FDAi). O líquido ruminal foi coletado, utilizando-se sonda esofágica. A coleta de urina foi feita através do 4 h após a alimentação. Foi coletado sangue quatro horas após a alimentação matinal, utilizando-se heparina como anticoagulante. A degradabilidade foi estimada através da técnica in situ utilizando-se sacos de náilon incubados no rúmen animal. O consumo de matéria seca (CMS) não diferiu entre os tratamentos RF, RP e RE. A digestibilidade da matéria seca (DMS) não foi afetada pelo processamento, enquanto a digestibilidade da proteína bruta para vacas alimentadas com ração extrusada (RE) (72,36%), foi menor (P<0,05), comparada a ração farelada (RF), no nível de 50 % de concentrado. A digestibilidade da fibra em detergente neutro para vacas alimentadas com RE (44,35%) foi menor (P<0,05) no nível de 50 % de concentrado. A produção de leite foi maior (P<0,05) para os animais consumindo ração extrusada (29,9 kg/dia), no nível de 50 % de concentrado, contudo, o menor nível não apresentou diferença significativa. A composição do leite não diferiu entre os tratamentos, para ambos os níveis de produção. Dentro de cada tempo (antes e três horas após a alimentação matinal), não houve diferenças nos valores de pH. Para as concentrações de N - NH3 ruminal, imediatamente antes da alimentação, as concentrações não diferiram entre si. Contudo, a ração extrusada apresentou menor (P<0,05) concentração de N - NH3 ruminal três horas após a alimentação. A degradabilidade ruminal da proteína bruta e da matéria seca foi numericamente maior para o tratamento peletizado e, principalmente, para o tratamento extrusado. As concentrações de uréia plasmática as excreções urinárias não diferiram entre os tratamentos.Conselho Nacional de Desenvolvimento Científico e Tecnológicoapplication/pdfporUniversidade Federal de ViçosaMestrado em ZootecniaUFVBRGenética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e ForragiculExtrusãoPeletizadaDesempenhoExtruded meal concentratesPelletedPerformanceCNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMALRações farelada, peletizada e extrusada na alimentação e produção de vacas leiteirasMeal, pelleted and extruded concentrates in the fed and milk yield in dairy cowsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALtexto completo.pdfapplication/pdf211270https://locus.ufv.br//bitstream/123456789/5852/1/texto%20completo.pdf1d453950af1b6efd3aa6a33b18fb16a7MD51TEXTtexto completo.pdf.txttexto completo.pdf.txtExtracted texttext/plain81580https://locus.ufv.br//bitstream/123456789/5852/2/texto%20completo.pdf.txt03d96a701a3bde786fb214264cccc688MD52THUMBNAILtexto completo.pdf.jpgtexto completo.pdf.jpgIM Thumbnailimage/jpeg3668https://locus.ufv.br//bitstream/123456789/5852/3/texto%20completo.pdf.jpge01e17061c8bf641ed3a595448c4afefMD53123456789/58522016-04-11 23:14:29.299oai:locus.ufv.br:123456789/5852Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452016-04-12T02:14:29LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.por.fl_str_mv Rações farelada, peletizada e extrusada na alimentação e produção de vacas leiteiras
dc.title.alternative.eng.fl_str_mv Meal, pelleted and extruded concentrates in the fed and milk yield in dairy cows
title Rações farelada, peletizada e extrusada na alimentação e produção de vacas leiteiras
spellingShingle Rações farelada, peletizada e extrusada na alimentação e produção de vacas leiteiras
Wernersbach Filho, Humberto Luiz
Extrusão
Peletizada
Desempenho
Extruded meal concentrates
Pelleted
Performance
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL
title_short Rações farelada, peletizada e extrusada na alimentação e produção de vacas leiteiras
title_full Rações farelada, peletizada e extrusada na alimentação e produção de vacas leiteiras
title_fullStr Rações farelada, peletizada e extrusada na alimentação e produção de vacas leiteiras
title_full_unstemmed Rações farelada, peletizada e extrusada na alimentação e produção de vacas leiteiras
title_sort Rações farelada, peletizada e extrusada na alimentação e produção de vacas leiteiras
author Wernersbach Filho, Humberto Luiz
author_facet Wernersbach Filho, Humberto Luiz
author_role author
dc.contributor.authorLattes.por.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4773300H6
dc.contributor.author.fl_str_mv Wernersbach Filho, Humberto Luiz
dc.contributor.advisor1.fl_str_mv Campos, José Maurício de Souza
dc.contributor.advisor1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4798551U0
dc.contributor.referee1.fl_str_mv Valadares Filho, Sebastião de Campos
dc.contributor.referee1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787028J6
dc.contributor.referee2.fl_str_mv Queiroz, Augusto César de
dc.contributor.referee2Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783006P5
dc.contributor.referee3.fl_str_mv Valadares, Rilene Ferreira Diniz
dc.contributor.referee3Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787025E4
dc.contributor.referee4.fl_str_mv Lana, Rogério de Paula
dc.contributor.referee4Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4782867Y6
contributor_str_mv Campos, José Maurício de Souza
Valadares Filho, Sebastião de Campos
Queiroz, Augusto César de
Valadares, Rilene Ferreira Diniz
Lana, Rogério de Paula
dc.subject.por.fl_str_mv Extrusão
Peletizada
Desempenho
topic Extrusão
Peletizada
Desempenho
Extruded meal concentrates
Pelleted
Performance
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL
dc.subject.eng.fl_str_mv Extruded meal concentrates
Pelleted
Performance
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL
description This work was carried out at the dairy cows Teaching, Research and extension unit at the Department of Animal Science of the Federal University of Viçosa with the objective of evaluating: the intake and apparent digestibility of nutrients, milk production and composition, ruminal pH and ammonia, ruminal degradability of dry matter and crude protein, urea concentration in the plasma in cows fed ration processed by different methods. Sixteen dairy holstein cows, purebreds and crossbred, in two milk production levels: 30.0 kg/day and 20.0 kg/day, were distributed equitatively in two latin squares balanced for each production level. The experiment was constituted of four periods with duration of 15 days each. The experimental diets were isoproteic, based on corn silage with forage: concentrate ratio of 50:50 to the level of 30.0 kg/day and 60:40 to the level of 20.0 Kg/day, in dry matter basis. The treatments were constituted of four concentrate rations: meal form (MR), pelleted (PR) and extruded (ER), with 27% and 84% of crude protein (CP) and total digestible nutrients(TDN), respectively and high energy ration with part of extruded elements (HER), with 27% and 86% of crude protein and TDN, respectively. The animals were housed in individual stalls like Tie Stall and fed ad libitum. The excretion of fecal dry matter was estimated by indigestible acid detergent fiber (ADFi). Rumen fluid was collected by esophagian tube. The urine collection was made by spot test . Blood was collected four hours after the morning feeding, being used heparin as anticoagulant. The in situ degradability was estimated with nylon pockets inside the animal rumen. The dry matter (DM) intake was not different among the experimental diets. Digestibility of the DM there was no difference, but the digestibility of the neutral detergent fiber (44,35%) was lower (P<0,05) to ER (extruded) and digestibility of the crude protein was lower (P<0,05) to ER (72,36%), compare to the MR meal). The milk production was larger (P<0,05) for the extruded diet (ER) (29.0 kg/day), in higher level production, however, in lower level there was no difference. The milk composition was not different among the diet to higher level production. Inside each time (before and three hours after the morning feeding) there was no difference in the pH values and amoniacal nitrogen compounds (N-NH3) among the experimental diets. There was no difference in ruminal N-NH3 concentration on time 0, however, at three hours after feeding, ER presented lower (P<0,05) ruminal N-NH3 concentration. The ruminal degradability of crude protein and DM were higher to PR and especiallly in ER. There was no difference in the concentration of plasmatic urea and fractional urine excretions.
publishDate 2003
dc.date.issued.fl_str_mv 2003-05-09
dc.date.available.fl_str_mv 2007-10-15
2015-03-26T13:55:30Z
dc.date.accessioned.fl_str_mv 2015-03-26T13:55:30Z
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dc.identifier.citation.fl_str_mv WERNERSBACH FILHO, Humberto Luiz. Meal, pelleted and extruded concentrates in the fed and milk yield in dairy cows. 2003. 56 f. Dissertação (Mestrado em Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul) - Universidade Federal de Viçosa, Viçosa, 2003.
dc.identifier.uri.fl_str_mv http://locus.ufv.br/handle/123456789/5852
identifier_str_mv WERNERSBACH FILHO, Humberto Luiz. Meal, pelleted and extruded concentrates in the fed and milk yield in dairy cows. 2003. 56 f. Dissertação (Mestrado em Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul) - Universidade Federal de Viçosa, Viçosa, 2003.
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dc.publisher.department.fl_str_mv Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul
publisher.none.fl_str_mv Universidade Federal de Viçosa
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