Influence of environmental temperature on nitrogen retention apparent digestibility of protein and amino acids and energy balance in growing pigs

Detalhes bibliográficos
Autor(a) principal: Fialho, Elias T.
Data de Publicação: 1991
Outros Autores: Cline, Tilford R.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/3462
Resumo: Thirty crossbred, castrated male pigs weighing 32 kg were assigned to one of five experimental ambient temperatures (11°, 17°, 23°, 29° and 35°C). The pigs were housed randomly and individually in steel metabolism cages in temperature controlled rooms. The animals were fed according to their metabolic size and the methodology utilized was total feces and urine collection. The data were analyzed using regression analysis. The estimated values of apparent digestibility of dry matter and protein, nitrogen retention, net protein utilization and biological value increased as environmental temperature increased to 29°C, but decreased above this temperature. Both low (11° and 17°C) and high (35°C) temperatures decreased all of the parameters analyzed. Apparent digestibility of amino acids showed the same effect and was highest at 29°C and lowest at 11°C and 35°C. Digestible energy and metabolizable energy values showed that the efficiency of energy utilization increased as environmental temperature increased. It was determined that DE and ME were maximized at 26° and 27°C respectively. The results suggest that temperatures fall between 25° and 29°C are within the thermoneutral zone of 32 kg pigs kept in metabolism cages.
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spelling Influence of environmental temperature on nitrogen retention apparent digestibility of protein and amino acids and energy balance in growing pigsInfluência da temperatura ambiental sobre a retenção de nitrogênio, digestibilidade aparente da proteína bruta, aminoácidos e balanço de energia, de suínos em crescimentometabolism assay; temperature; protein diet; corn-soybean meal; metabolism cageensaios de metabolismo; temperatura; dieta; metabolismo da proteí­na; dieta de milho-soja; gaiolas de metabolismoThirty crossbred, castrated male pigs weighing 32 kg were assigned to one of five experimental ambient temperatures (11°, 17°, 23°, 29° and 35°C). The pigs were housed randomly and individually in steel metabolism cages in temperature controlled rooms. The animals were fed according to their metabolic size and the methodology utilized was total feces and urine collection. The data were analyzed using regression analysis. The estimated values of apparent digestibility of dry matter and protein, nitrogen retention, net protein utilization and biological value increased as environmental temperature increased to 29°C, but decreased above this temperature. Both low (11° and 17°C) and high (35°C) temperatures decreased all of the parameters analyzed. Apparent digestibility of amino acids showed the same effect and was highest at 29°C and lowest at 11°C and 35°C. Digestible energy and metabolizable energy values showed that the efficiency of energy utilization increased as environmental temperature increased. It was determined that DE and ME were maximized at 26° and 27°C respectively. The results suggest that temperatures fall between 25° and 29°C are within the thermoneutral zone of 32 kg pigs kept in metabolism cages.Ensaios de metabolismo foram conduzidos objetivando verificar a influência das temperaturas (11°, 17°, 23°, 29° e 35°C) sobre o metabolismo da proteína, dos aminoácidos e da energia. Trinta suínos machos mestiços, castrados, pesando 32 kg foram distribuídos ao acaso e individualmente em gaiolas de metabolismo, seis em cada temperatura. Utilizou-se a metodologia de coleta total de fezes e o óxido férrico como marcador fecal. Os dados foram analisados usando análise de regressão. Os valores estimados para coeficiente de digestibilidade da proteína, retenção de nitrogênio, proteína metabolizável e valor biológico da proteína bruta aumentaram quando a temperatura ambiental aumentou até 29°C, decrescendo acima da mesma. Temperaturas de 11° e 17°C e de 35°C propiciaram decréscimos em todos os parâmetros analisados. A digestibilidade aparente dos aminoácidos foi melhor à temperatura de 29°C. A eficiência da utilização da energia digestível e metabolizável foi maximizada a 26° e 27°C, respectivamente. Os resultados sugerem que temperaturas entre 25° a 29°C constituem a Zona de Termoneutralidade de suínos em crescimento com 32.0 kg mantidos em gaiolas de metabolismo.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFialho, Elias T.Cline, Tilford R.1991-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/3462Pesquisa Agropecuaria Brasileira; v.26, n.8, ago. 1991; 1237-1253Pesquisa Agropecuária Brasileira; v.26, n.8, ago. 1991; 1237-12531678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/3462/795info:eu-repo/semantics/openAccess2009-12-21T11:04:46Zoai:ojs.seer.sct.embrapa.br:article/3462Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2009-12-21T11:04:46Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Influence of environmental temperature on nitrogen retention apparent digestibility of protein and amino acids and energy balance in growing pigs
Influência da temperatura ambiental sobre a retenção de nitrogênio, digestibilidade aparente da proteína bruta, aminoácidos e balanço de energia, de suínos em crescimento
title Influence of environmental temperature on nitrogen retention apparent digestibility of protein and amino acids and energy balance in growing pigs
spellingShingle Influence of environmental temperature on nitrogen retention apparent digestibility of protein and amino acids and energy balance in growing pigs
Fialho, Elias T.
metabolism assay; temperature; protein diet; corn-soybean meal; metabolism cage
ensaios de metabolismo; temperatura; dieta; metabolismo da proteí­na; dieta de milho-soja; gaiolas de metabolismo
title_short Influence of environmental temperature on nitrogen retention apparent digestibility of protein and amino acids and energy balance in growing pigs
title_full Influence of environmental temperature on nitrogen retention apparent digestibility of protein and amino acids and energy balance in growing pigs
title_fullStr Influence of environmental temperature on nitrogen retention apparent digestibility of protein and amino acids and energy balance in growing pigs
title_full_unstemmed Influence of environmental temperature on nitrogen retention apparent digestibility of protein and amino acids and energy balance in growing pigs
title_sort Influence of environmental temperature on nitrogen retention apparent digestibility of protein and amino acids and energy balance in growing pigs
author Fialho, Elias T.
author_facet Fialho, Elias T.
Cline, Tilford R.
author_role author
author2 Cline, Tilford R.
author2_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Fialho, Elias T.
Cline, Tilford R.
dc.subject.por.fl_str_mv metabolism assay; temperature; protein diet; corn-soybean meal; metabolism cage
ensaios de metabolismo; temperatura; dieta; metabolismo da proteí­na; dieta de milho-soja; gaiolas de metabolismo
topic metabolism assay; temperature; protein diet; corn-soybean meal; metabolism cage
ensaios de metabolismo; temperatura; dieta; metabolismo da proteí­na; dieta de milho-soja; gaiolas de metabolismo
description Thirty crossbred, castrated male pigs weighing 32 kg were assigned to one of five experimental ambient temperatures (11°, 17°, 23°, 29° and 35°C). The pigs were housed randomly and individually in steel metabolism cages in temperature controlled rooms. The animals were fed according to their metabolic size and the methodology utilized was total feces and urine collection. The data were analyzed using regression analysis. The estimated values of apparent digestibility of dry matter and protein, nitrogen retention, net protein utilization and biological value increased as environmental temperature increased to 29°C, but decreased above this temperature. Both low (11° and 17°C) and high (35°C) temperatures decreased all of the parameters analyzed. Apparent digestibility of amino acids showed the same effect and was highest at 29°C and lowest at 11°C and 35°C. Digestible energy and metabolizable energy values showed that the efficiency of energy utilization increased as environmental temperature increased. It was determined that DE and ME were maximized at 26° and 27°C respectively. The results suggest that temperatures fall between 25° and 29°C are within the thermoneutral zone of 32 kg pigs kept in metabolism cages.
publishDate 1991
dc.date.none.fl_str_mv 1991-08-01
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/3462
url https://seer.sct.embrapa.br/index.php/pab/article/view/3462
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/3462/795
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 Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.26, n.8, ago. 1991; 1237-1253
Pesquisa Agropecuária Brasileira; v.26, n.8, ago. 1991; 1237-1253
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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