Exigências de energia em bezerros lactentes F1 holandês x Gir, utilizando a respirometria

Detalhes bibliográficos
Autor(a) principal: Juliana Savia da Silva
Data de Publicação: 2016
Tipo de documento: Tese
Idioma: por
Título da fonte: Repositório Institucional da UFMG
Texto Completo: http://hdl.handle.net/1843/BUBD-ADMNUZ
Resumo: This study aimed to evaluate the influence of three milk supply strategies and ad libitum concentrate on intake, digestibility, nitrogen balance, performance, metabolic profile and behavior, and determine the net energy milk, energy partition and nutritional energyrequirements in dairy calves F1 Holandês x Gir (n = 19) at 30 and 60 days old. The experimental design adopted was completely randomized. The results were analyzed using the GLM procedure of SAS version 9.0 and is considered fixed effects the quantity of milk supplied daily to calves (4, 6 and 8 L/day reconstituted whole milk powder /day). The lineareffect of the variables was analyzed by orthogonal contrasts, being considered significant when 0.05. The digestibility were always above 90% due through extensive involvement of milk in the diet and its highly digestible constituents. At 30 days of age, the provision of 8 L/day milk was most economically efficient because it allowed a greater weight gain with concomitant lower cost of the diet. The quantities of milk influenced the creatinine, cholesterol and glucose concentrations. At 60 days of age, animals receiving lower volume of milk tended to consume more concentrated to compensate for energy deficiency. The supplyof concentrate was significant for the calves that received 4 L/day of milk presented the Lowest cost / kg GMD. Animals that consumed greater quantities of milk and had access to concentrate at will excreted less N fecal. The supply of milk and concentrated influenced theconcentrations of AST and glucose calves. The provision of concentrate promoted prolonged periods of feeding. The demand of liquid energy for maintenance of suckling calves F1 Holandês x Gir, 30 days old, is 73,71 kcal/kgPV0,75, and metabolizable energy for maintenance is 109,44 kcal/kg PV0,75. The energy values of milk are: 4,07 McalElm/kg of MSand 2,67 McalELg/kg of MS
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spelling Exigências de energia em bezerros lactentes F1 holandês x Gir, utilizando a respirometriaMantençaConcentradoPré-ruminanteIngestãoLeiteDigestibilidadeBezerro Alimentação e raçõesExigencias nutricionaisNutrição animalThis study aimed to evaluate the influence of three milk supply strategies and ad libitum concentrate on intake, digestibility, nitrogen balance, performance, metabolic profile and behavior, and determine the net energy milk, energy partition and nutritional energyrequirements in dairy calves F1 Holandês x Gir (n = 19) at 30 and 60 days old. The experimental design adopted was completely randomized. The results were analyzed using the GLM procedure of SAS version 9.0 and is considered fixed effects the quantity of milk supplied daily to calves (4, 6 and 8 L/day reconstituted whole milk powder /day). The lineareffect of the variables was analyzed by orthogonal contrasts, being considered significant when 0.05. The digestibility were always above 90% due through extensive involvement of milk in the diet and its highly digestible constituents. At 30 days of age, the provision of 8 L/day milk was most economically efficient because it allowed a greater weight gain with concomitant lower cost of the diet. The quantities of milk influenced the creatinine, cholesterol and glucose concentrations. At 60 days of age, animals receiving lower volume of milk tended to consume more concentrated to compensate for energy deficiency. The supplyof concentrate was significant for the calves that received 4 L/day of milk presented the Lowest cost / kg GMD. Animals that consumed greater quantities of milk and had access to concentrate at will excreted less N fecal. The supply of milk and concentrated influenced theconcentrations of AST and glucose calves. The provision of concentrate promoted prolonged periods of feeding. The demand of liquid energy for maintenance of suckling calves F1 Holandês x Gir, 30 days old, is 73,71 kcal/kgPV0,75, and metabolizable energy for maintenance is 109,44 kcal/kg PV0,75. The energy values of milk are: 4,07 McalElm/kg of MSand 2,67 McalELg/kg of MSObjetivou-se avaliar a influência de três estratégias de fornecimento de leite e de concentrado ad libitum sobre o consumo, digestibilidade, balanço de nitrogênio, desempenho, perfil metabólico e comportamento, e determinar a energia líquida do leite, a partição energética e as exigências nutricionais de energia em bezerros lactentes F1 Holandês x Gir (n=19) aos 30 e 60 dias de idade. O delineamento experimental utilizado foi inteiramente casualizado. Os resultados foram analisados utilizando-se o procedimento GLM do SAS versão 9.0, sendoconsiderado efeito fixo a quantidade de leite fornecida diariamente aos bezerros (4; 6 e 8 L/dia de leite integral em pó reconstituído/dia). O efeito linear das variáveis foi analisado por contrastes ortogonais, sendo considerado significativo quando 0,05. As digestibilidadesforam sempre superiores a 90% devido à grande participação do leite nas dietas e seus constituintes altamente digestíveis. Aos 30 dias de idade, o fornecimento de 8 L/dia de leite foi economicamente mais eficiente, pois permitiu maior ganho de peso com concomitantemenor custo da dieta. As quantidades de leite influenciaram as concentrações de creatinina, colesterol e glicose. Aos 60 dias de idade, os animais que receberam menor volume de leite tenderam a consumir mais concentrado para compensar a deficiência energética. Ofornecimento de concentrado foi significativo para que os bezerros que receberam 4 L/dia de leite apresentassem o menor custo/kg GMD. Os animais que consumiram maior volume de leite e tiveram acesso ao concentrado à vontade excretaram menos N fecal. A oferta de leite econcentrado influenciou as concentrações de AST e glicose dos bezerros. O fornecimento de concentrado promoveu períodos mais prolongados de alimentação. A exigência de energia Líquida para mantença de bezerros lactentes F1 Holandês x Gir, com 30 dias de idade, é 73,71kcal/kg PV0,75, e a de energia metabolizável para mantença é de 109,44 kcal/kg PV0,75. Os valores energéticos do leite são: 4,07 McalELm/kg de MS e 2,67 McalELg/kg de MS.Universidade Federal de Minas GeraisUFMGAna Luiza Costa Cruz BorgesFernando Cesar Ferraz LopesLucio Carlos GoncalvesRicardo Reis e SilvaAntonio Ultimo de CarvalhoDecio Souza GracaMirton José Frota MorenzJuliana Savia da Silva2019-08-10T21:49:39Z2019-08-10T21:49:39Z2016-03-11info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfhttp://hdl.handle.net/1843/BUBD-ADMNUZinfo:eu-repo/semantics/openAccessporreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMG2019-11-14T12:33:55Zoai:repositorio.ufmg.br:1843/BUBD-ADMNUZRepositório InstitucionalPUBhttps://repositorio.ufmg.br/oairepositorio@ufmg.bropendoar:2019-11-14T12:33:55Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false
dc.title.none.fl_str_mv Exigências de energia em bezerros lactentes F1 holandês x Gir, utilizando a respirometria
title Exigências de energia em bezerros lactentes F1 holandês x Gir, utilizando a respirometria
spellingShingle Exigências de energia em bezerros lactentes F1 holandês x Gir, utilizando a respirometria
Juliana Savia da Silva
Mantença
Concentrado
Pré-ruminante
Ingestão
Leite
Digestibilidade
Bezerro Alimentação e rações
Exigencias nutricionais
Nutrição animal
title_short Exigências de energia em bezerros lactentes F1 holandês x Gir, utilizando a respirometria
title_full Exigências de energia em bezerros lactentes F1 holandês x Gir, utilizando a respirometria
title_fullStr Exigências de energia em bezerros lactentes F1 holandês x Gir, utilizando a respirometria
title_full_unstemmed Exigências de energia em bezerros lactentes F1 holandês x Gir, utilizando a respirometria
title_sort Exigências de energia em bezerros lactentes F1 holandês x Gir, utilizando a respirometria
author Juliana Savia da Silva
author_facet Juliana Savia da Silva
author_role author
dc.contributor.none.fl_str_mv Ana Luiza Costa Cruz Borges
Fernando Cesar Ferraz Lopes
Lucio Carlos Goncalves
Ricardo Reis e Silva
Antonio Ultimo de Carvalho
Decio Souza Graca
Mirton José Frota Morenz
dc.contributor.author.fl_str_mv Juliana Savia da Silva
dc.subject.por.fl_str_mv Mantença
Concentrado
Pré-ruminante
Ingestão
Leite
Digestibilidade
Bezerro Alimentação e rações
Exigencias nutricionais
Nutrição animal
topic Mantença
Concentrado
Pré-ruminante
Ingestão
Leite
Digestibilidade
Bezerro Alimentação e rações
Exigencias nutricionais
Nutrição animal
description This study aimed to evaluate the influence of three milk supply strategies and ad libitum concentrate on intake, digestibility, nitrogen balance, performance, metabolic profile and behavior, and determine the net energy milk, energy partition and nutritional energyrequirements in dairy calves F1 Holandês x Gir (n = 19) at 30 and 60 days old. The experimental design adopted was completely randomized. The results were analyzed using the GLM procedure of SAS version 9.0 and is considered fixed effects the quantity of milk supplied daily to calves (4, 6 and 8 L/day reconstituted whole milk powder /day). The lineareffect of the variables was analyzed by orthogonal contrasts, being considered significant when 0.05. The digestibility were always above 90% due through extensive involvement of milk in the diet and its highly digestible constituents. At 30 days of age, the provision of 8 L/day milk was most economically efficient because it allowed a greater weight gain with concomitant lower cost of the diet. The quantities of milk influenced the creatinine, cholesterol and glucose concentrations. At 60 days of age, animals receiving lower volume of milk tended to consume more concentrated to compensate for energy deficiency. The supplyof concentrate was significant for the calves that received 4 L/day of milk presented the Lowest cost / kg GMD. Animals that consumed greater quantities of milk and had access to concentrate at will excreted less N fecal. The supply of milk and concentrated influenced theconcentrations of AST and glucose calves. The provision of concentrate promoted prolonged periods of feeding. The demand of liquid energy for maintenance of suckling calves F1 Holandês x Gir, 30 days old, is 73,71 kcal/kgPV0,75, and metabolizable energy for maintenance is 109,44 kcal/kg PV0,75. The energy values of milk are: 4,07 McalElm/kg of MSand 2,67 McalELg/kg of MS
publishDate 2016
dc.date.none.fl_str_mv 2016-03-11
2019-08-10T21:49:39Z
2019-08-10T21:49:39Z
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.uri.fl_str_mv http://hdl.handle.net/1843/BUBD-ADMNUZ
url http://hdl.handle.net/1843/BUBD-ADMNUZ
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 Minas Gerais
UFMG
publisher.none.fl_str_mv Universidade Federal de Minas Gerais
UFMG
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFMG
instname:Universidade Federal de Minas Gerais (UFMG)
instacron:UFMG
instname_str Universidade Federal de Minas Gerais (UFMG)
instacron_str UFMG
institution UFMG
reponame_str Repositório Institucional da UFMG
collection Repositório Institucional da UFMG
repository.name.fl_str_mv Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)
repository.mail.fl_str_mv repositorio@ufmg.br
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