Impact of dietary manipulation on nutrient flows and greenhouse gas emissions in cattle

Detalhes bibliográficos
Autor(a) principal: Kebreab,Ermias
Data de Publicação: 2010
Outros Autores: Strathe,Anders, Fadel,James, Moraes,Luis, France,James
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Zootecnia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001300050
Resumo: The growing global demand for meat and particularly in countries such as Brazil is expected to increase intensive animal production. Consequently the main pollutants of interest are nitrogen (N), phosphorus (P) and greenhouse gases (GHG). Nitrogen can be a problem through nitrate leaching to water bodies, ammonia, and nitrous oxide emissions to air. Phosphorus loading in soil from manure application can be the main issue due to the tendency of P to accumulate in soil and leach to groundwater and rivers. The sources of agricultural GHG emissions include methane from enteric fermentation, manure storage and spreading, and nitrous oxide mainly from application of manure on land. Dietary manipulation has proven to be an effective tool to reduce nutrient/mineral pollution and GHG emissions. Several studies have shown that decreasing crude protein in the diet could reduce N excretion and ammonia volatilization substantially without compromising productivity. Similarly, reducing P intake in dairy cattle has been shown to reduce P excretion by up to 10%. Changing the type of N and P consumed and energy level of diet has also been reported to affect the amount and type of N and P excreted. Dietary manipulation also has an impact on the amount of GHG emissions, particularly, from enteric fermentation. Feeding cattle with a high starch and low fiber diet, for example, reduces acetate production in the rumen, and leads to lower methane production. Emissions from stored manure from high fiber fed animals tend to be higher. Evidence is also available that diet affects emissions from manure applied soil. As level of production is increased to meet global demand for ruminant meat and milk products, dietary manipulation will be useful in addressing environmental concerns.
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spelling Impact of dietary manipulation on nutrient flows and greenhouse gas emissions in cattlemethanenitrogenphosphoruspollutionruminantsThe growing global demand for meat and particularly in countries such as Brazil is expected to increase intensive animal production. Consequently the main pollutants of interest are nitrogen (N), phosphorus (P) and greenhouse gases (GHG). Nitrogen can be a problem through nitrate leaching to water bodies, ammonia, and nitrous oxide emissions to air. Phosphorus loading in soil from manure application can be the main issue due to the tendency of P to accumulate in soil and leach to groundwater and rivers. The sources of agricultural GHG emissions include methane from enteric fermentation, manure storage and spreading, and nitrous oxide mainly from application of manure on land. Dietary manipulation has proven to be an effective tool to reduce nutrient/mineral pollution and GHG emissions. Several studies have shown that decreasing crude protein in the diet could reduce N excretion and ammonia volatilization substantially without compromising productivity. Similarly, reducing P intake in dairy cattle has been shown to reduce P excretion by up to 10%. Changing the type of N and P consumed and energy level of diet has also been reported to affect the amount and type of N and P excreted. Dietary manipulation also has an impact on the amount of GHG emissions, particularly, from enteric fermentation. Feeding cattle with a high starch and low fiber diet, for example, reduces acetate production in the rumen, and leads to lower methane production. Emissions from stored manure from high fiber fed animals tend to be higher. Evidence is also available that diet affects emissions from manure applied soil. As level of production is increased to meet global demand for ruminant meat and milk products, dietary manipulation will be useful in addressing environmental concerns.Sociedade Brasileira de Zootecnia2010-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001300050Revista Brasileira de Zootecnia v.39 suppl.spe 2010reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/S1516-35982010001300050info:eu-repo/semantics/openAccessKebreab,ErmiasStrathe,AndersFadel,JamesMoraes,LuisFrance,Jameseng2010-08-09T00:00:00Zoai:scielo:S1516-35982010001300050Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2010-08-09T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false
dc.title.none.fl_str_mv Impact of dietary manipulation on nutrient flows and greenhouse gas emissions in cattle
title Impact of dietary manipulation on nutrient flows and greenhouse gas emissions in cattle
spellingShingle Impact of dietary manipulation on nutrient flows and greenhouse gas emissions in cattle
Kebreab,Ermias
methane
nitrogen
phosphorus
pollution
ruminants
title_short Impact of dietary manipulation on nutrient flows and greenhouse gas emissions in cattle
title_full Impact of dietary manipulation on nutrient flows and greenhouse gas emissions in cattle
title_fullStr Impact of dietary manipulation on nutrient flows and greenhouse gas emissions in cattle
title_full_unstemmed Impact of dietary manipulation on nutrient flows and greenhouse gas emissions in cattle
title_sort Impact of dietary manipulation on nutrient flows and greenhouse gas emissions in cattle
author Kebreab,Ermias
author_facet Kebreab,Ermias
Strathe,Anders
Fadel,James
Moraes,Luis
France,James
author_role author
author2 Strathe,Anders
Fadel,James
Moraes,Luis
France,James
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Kebreab,Ermias
Strathe,Anders
Fadel,James
Moraes,Luis
France,James
dc.subject.por.fl_str_mv methane
nitrogen
phosphorus
pollution
ruminants
topic methane
nitrogen
phosphorus
pollution
ruminants
description The growing global demand for meat and particularly in countries such as Brazil is expected to increase intensive animal production. Consequently the main pollutants of interest are nitrogen (N), phosphorus (P) and greenhouse gases (GHG). Nitrogen can be a problem through nitrate leaching to water bodies, ammonia, and nitrous oxide emissions to air. Phosphorus loading in soil from manure application can be the main issue due to the tendency of P to accumulate in soil and leach to groundwater and rivers. The sources of agricultural GHG emissions include methane from enteric fermentation, manure storage and spreading, and nitrous oxide mainly from application of manure on land. Dietary manipulation has proven to be an effective tool to reduce nutrient/mineral pollution and GHG emissions. Several studies have shown that decreasing crude protein in the diet could reduce N excretion and ammonia volatilization substantially without compromising productivity. Similarly, reducing P intake in dairy cattle has been shown to reduce P excretion by up to 10%. Changing the type of N and P consumed and energy level of diet has also been reported to affect the amount and type of N and P excreted. Dietary manipulation also has an impact on the amount of GHG emissions, particularly, from enteric fermentation. Feeding cattle with a high starch and low fiber diet, for example, reduces acetate production in the rumen, and leads to lower methane production. Emissions from stored manure from high fiber fed animals tend to be higher. Evidence is also available that diet affects emissions from manure applied soil. As level of production is increased to meet global demand for ruminant meat and milk products, dietary manipulation will be useful in addressing environmental concerns.
publishDate 2010
dc.date.none.fl_str_mv 2010-07-01
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001300050
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dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv 10.1590/S1516-35982010001300050
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dc.publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
dc.source.none.fl_str_mv Revista Brasileira de Zootecnia v.39 suppl.spe 2010
reponame:Revista Brasileira de Zootecnia (Online)
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