The use of lipid - calcium complex for lactating cows. 2. Ruminal pH and ammonia levels and rate of digesta passage

Detalhes bibliográficos
Autor(a) principal: Rosado, Mitson
Data de Publicação: 1994
Outros Autores: de Castro, Antônio Carlos Gonçalves, da Silva, José Fernando Coelho, Filho, Sebastião de Campos Valadares, Euclydes, Ricardo Frederico
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/4161
Resumo: The effect of a lipid-calcium complex fed to lactating cows, on the ruminal pH and ammonia levels and the rate of digesta passage based on one - and two - compartmental models, was studied in two trials utilizing maize silage or sugarcane. Ruminal pH showed a quadratic behavior in both experiments and the mean value for all diets was 6.0. The ruminal ammonia concentration in Experiment 1 decreased linearly at the rate of 1.84 mg/100 ml/hour when the calcium complex was present and showed a quadratic behavior when it was absent, with the maximum value of 22.03 mg N-NH3/100 Mg. In Experiment 2 the ruminal ammonia concentration showed a quadratic behavior; the respective values for diets with and without the complex were 15.71 and 18.76 mg/100 ml. The rate of rumen digesta passage (one compartment model) was higher (P < 0.05) for corn silage diet (6.44%/h) than for sugarcane diet (4.11%/h). The rates of passage determined by the one or two compartment models in Experiment 1 were similar (P > 0.05).
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spelling The use of lipid - calcium complex for lactating cows. 2. Ruminal pH and ammonia levels and rate of digesta passageUtilização de lipídios complexados com cálcio para vacas em lactação. 2. Concentrações de N-NH3, pH e taxa de passagem no rúmenterms - rumen ammonia; rumen pH; rate of digesta passagepara indexação - amônia ruminal; pH ruminal; taxa de passagem de digestosThe effect of a lipid-calcium complex fed to lactating cows, on the ruminal pH and ammonia levels and the rate of digesta passage based on one - and two - compartmental models, was studied in two trials utilizing maize silage or sugarcane. Ruminal pH showed a quadratic behavior in both experiments and the mean value for all diets was 6.0. The ruminal ammonia concentration in Experiment 1 decreased linearly at the rate of 1.84 mg/100 ml/hour when the calcium complex was present and showed a quadratic behavior when it was absent, with the maximum value of 22.03 mg N-NH3/100 Mg. In Experiment 2 the ruminal ammonia concentration showed a quadratic behavior; the respective values for diets with and without the complex were 15.71 and 18.76 mg/100 ml. The rate of rumen digesta passage (one compartment model) was higher (P < 0.05) for corn silage diet (6.44%/h) than for sugarcane diet (4.11%/h). The rates of passage determined by the one or two compartment models in Experiment 1 were similar (P > 0.05).Dois experimentos utilizando a silagem de milho e a cana-de-açúcar foram realizados para verificar o efeito de um produto composto de ácido graxo de origem animal e/ou vegetal com sal de cálcio sobre a variação do pH, a concentração de amônia, e estimar a taxa de passagem de digestos no rúmen, utilizando-se modelos de um a dois compartimentos, em vacas em lactação. O pH apresentou um comportamento quadrático; os valores oscilaram em torno de 6,0, independentemente do volumoso e da presença, ou não, do aditivo. No experimento com silagem em presença do aditivo, a concentração de N-NH3 decresceu linearmente a uma taxa de 1,84 mg/100 ml/h. A dieta sem aditivo apresentou um comportamento quadrático, e a maior concentração de N-NH3 foi de 22,03 mg/100 ml. No experimento com cana, as concentrações de N-NH3 apresentaram um comportamento quadrático em relação às dietas com e sem aditivo (15,71 e 18,76 mg/100 ml, respectivamente). A taxa de passagem pelo modelo unicompartimental foi maior (P < 0,05) em relação à silagem (6,44%/h) do que em relação à cana (4,11%/h). As taxas de passagem pelos modelos uni e bicompartimental não diferiram (P > 0,05).Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraRosado, Mitsonde Castro, Antônio Carlos Gonçalvesda Silva, José Fernando CoelhoFilho, Sebastião de Campos ValadaresEuclydes, Ricardo Frederico1994-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/4161Pesquisa Agropecuaria Brasileira; v.29, n.7, jul. 1994; 1159-1165Pesquisa Agropecuária Brasileira; v.29, n.7, jul. 1994; 1159-11651678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/4161/1452info:eu-repo/semantics/openAccess2010-03-31T11:53:24Zoai:ojs.seer.sct.embrapa.br:article/4161Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-03-31T11:53:24Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv The use of lipid - calcium complex for lactating cows. 2. Ruminal pH and ammonia levels and rate of digesta passage
Utilização de lipídios complexados com cálcio para vacas em lactação. 2. Concentrações de N-NH3, pH e taxa de passagem no rúmen
title The use of lipid - calcium complex for lactating cows. 2. Ruminal pH and ammonia levels and rate of digesta passage
spellingShingle The use of lipid - calcium complex for lactating cows. 2. Ruminal pH and ammonia levels and rate of digesta passage
Rosado, Mitson
terms - rumen ammonia; rumen pH; rate of digesta passage
para indexação - amônia ruminal; pH ruminal; taxa de passagem de digestos
title_short The use of lipid - calcium complex for lactating cows. 2. Ruminal pH and ammonia levels and rate of digesta passage
title_full The use of lipid - calcium complex for lactating cows. 2. Ruminal pH and ammonia levels and rate of digesta passage
title_fullStr The use of lipid - calcium complex for lactating cows. 2. Ruminal pH and ammonia levels and rate of digesta passage
title_full_unstemmed The use of lipid - calcium complex for lactating cows. 2. Ruminal pH and ammonia levels and rate of digesta passage
title_sort The use of lipid - calcium complex for lactating cows. 2. Ruminal pH and ammonia levels and rate of digesta passage
author Rosado, Mitson
author_facet Rosado, Mitson
de Castro, Antônio Carlos Gonçalves
da Silva, José Fernando Coelho
Filho, Sebastião de Campos Valadares
Euclydes, Ricardo Frederico
author_role author
author2 de Castro, Antônio Carlos Gonçalves
da Silva, José Fernando Coelho
Filho, Sebastião de Campos Valadares
Euclydes, Ricardo Frederico
author2_role author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Rosado, Mitson
de Castro, Antônio Carlos Gonçalves
da Silva, José Fernando Coelho
Filho, Sebastião de Campos Valadares
Euclydes, Ricardo Frederico
dc.subject.por.fl_str_mv terms - rumen ammonia; rumen pH; rate of digesta passage
para indexação - amônia ruminal; pH ruminal; taxa de passagem de digestos
topic terms - rumen ammonia; rumen pH; rate of digesta passage
para indexação - amônia ruminal; pH ruminal; taxa de passagem de digestos
description The effect of a lipid-calcium complex fed to lactating cows, on the ruminal pH and ammonia levels and the rate of digesta passage based on one - and two - compartmental models, was studied in two trials utilizing maize silage or sugarcane. Ruminal pH showed a quadratic behavior in both experiments and the mean value for all diets was 6.0. The ruminal ammonia concentration in Experiment 1 decreased linearly at the rate of 1.84 mg/100 ml/hour when the calcium complex was present and showed a quadratic behavior when it was absent, with the maximum value of 22.03 mg N-NH3/100 Mg. In Experiment 2 the ruminal ammonia concentration showed a quadratic behavior; the respective values for diets with and without the complex were 15.71 and 18.76 mg/100 ml. The rate of rumen digesta passage (one compartment model) was higher (P < 0.05) for corn silage diet (6.44%/h) than for sugarcane diet (4.11%/h). The rates of passage determined by the one or two compartment models in Experiment 1 were similar (P > 0.05).
publishDate 1994
dc.date.none.fl_str_mv 1994-07-01
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/4161
url https://seer.sct.embrapa.br/index.php/pab/article/view/4161
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/4161/1452
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.29, n.7, jul. 1994; 1159-1165
Pesquisa Agropecuária Brasileira; v.29, n.7, jul. 1994; 1159-1165
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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