Intake, apparent digestibility, production, and composition of milk from cows fed diets with different sources of lipids
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , |
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=S1516-35982016000200056 |
Resumo: | ABSTRACT The objective of this study was to evaluate the effect of different sources of lipids in the diets of dairy cows on the intake and digestibility of nutritional fractions, and milk production and composition. The experiment was conducted in a 42-hectare area divided into eight paddocks covered with Brachiaria brizantha. Twelve crossbred Holstein × Zebu cows were distributed into three simultaneous 4 × 4 Latin squares. The treatments consisted of different sources of lipids, as follows: diet with no extra source of lipids; diet with cottonseed as the source of lipids; diet with soy oil; and diet with used frying soy oil. The intakes of dry matter, neutral detergent fiber, crude protein, total carbohydrates, and non-fibrous carbohydrates were similar for all diets. The use of lipid sources caused a decrease in the apparent digestibility of dry matter, neutral detergent fiber, non-fibrous carbohydrates, and crude protein. The levels of protein, lactose, and defatted dry matter were reduced with the use of lipid sources but did not affect milk production. The use of cottonseed, soy oil, and used frying soy oil as sources of lipids in diets for lactating cows at pasture do not improve milk production, and their use is therefore optional. |
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Intake, apparent digestibility, production, and composition of milk from cows fed diets with different sources of lipidscottonseeddairy cowsfatperformanceruminant nutritionsoyABSTRACT The objective of this study was to evaluate the effect of different sources of lipids in the diets of dairy cows on the intake and digestibility of nutritional fractions, and milk production and composition. The experiment was conducted in a 42-hectare area divided into eight paddocks covered with Brachiaria brizantha. Twelve crossbred Holstein × Zebu cows were distributed into three simultaneous 4 × 4 Latin squares. The treatments consisted of different sources of lipids, as follows: diet with no extra source of lipids; diet with cottonseed as the source of lipids; diet with soy oil; and diet with used frying soy oil. The intakes of dry matter, neutral detergent fiber, crude protein, total carbohydrates, and non-fibrous carbohydrates were similar for all diets. The use of lipid sources caused a decrease in the apparent digestibility of dry matter, neutral detergent fiber, non-fibrous carbohydrates, and crude protein. The levels of protein, lactose, and defatted dry matter were reduced with the use of lipid sources but did not affect milk production. The use of cottonseed, soy oil, and used frying soy oil as sources of lipids in diets for lactating cows at pasture do not improve milk production, and their use is therefore optional.Sociedade Brasileira de Zootecnia2016-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000200056Revista Brasileira de Zootecnia v.45 n.2 2016reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/S1806-92902016000200003info:eu-repo/semantics/openAccessMurta,Rogério MendesVeloso,Cristina MattosPires,Aureliano José VieiraSilva,Fabiano Ferreira daCarvalho,Gleidson Giordano Pinto deEustáquio Filho,AntônioMaranhão,Camila Maida de AlbuquerqueCruz,Cláudia Horne daeng2016-02-23T00:00:00Zoai:scielo:S1516-35982016000200056Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2016-02-23T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false |
dc.title.none.fl_str_mv |
Intake, apparent digestibility, production, and composition of milk from cows fed diets with different sources of lipids |
title |
Intake, apparent digestibility, production, and composition of milk from cows fed diets with different sources of lipids |
spellingShingle |
Intake, apparent digestibility, production, and composition of milk from cows fed diets with different sources of lipids Murta,Rogério Mendes cottonseed dairy cows fat performance ruminant nutrition soy |
title_short |
Intake, apparent digestibility, production, and composition of milk from cows fed diets with different sources of lipids |
title_full |
Intake, apparent digestibility, production, and composition of milk from cows fed diets with different sources of lipids |
title_fullStr |
Intake, apparent digestibility, production, and composition of milk from cows fed diets with different sources of lipids |
title_full_unstemmed |
Intake, apparent digestibility, production, and composition of milk from cows fed diets with different sources of lipids |
title_sort |
Intake, apparent digestibility, production, and composition of milk from cows fed diets with different sources of lipids |
author |
Murta,Rogério Mendes |
author_facet |
Murta,Rogério Mendes Veloso,Cristina Mattos Pires,Aureliano José Vieira Silva,Fabiano Ferreira da Carvalho,Gleidson Giordano Pinto de Eustáquio Filho,Antônio Maranhão,Camila Maida de Albuquerque Cruz,Cláudia Horne da |
author_role |
author |
author2 |
Veloso,Cristina Mattos Pires,Aureliano José Vieira Silva,Fabiano Ferreira da Carvalho,Gleidson Giordano Pinto de Eustáquio Filho,Antônio Maranhão,Camila Maida de Albuquerque Cruz,Cláudia Horne da |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Murta,Rogério Mendes Veloso,Cristina Mattos Pires,Aureliano José Vieira Silva,Fabiano Ferreira da Carvalho,Gleidson Giordano Pinto de Eustáquio Filho,Antônio Maranhão,Camila Maida de Albuquerque Cruz,Cláudia Horne da |
dc.subject.por.fl_str_mv |
cottonseed dairy cows fat performance ruminant nutrition soy |
topic |
cottonseed dairy cows fat performance ruminant nutrition soy |
description |
ABSTRACT The objective of this study was to evaluate the effect of different sources of lipids in the diets of dairy cows on the intake and digestibility of nutritional fractions, and milk production and composition. The experiment was conducted in a 42-hectare area divided into eight paddocks covered with Brachiaria brizantha. Twelve crossbred Holstein × Zebu cows were distributed into three simultaneous 4 × 4 Latin squares. The treatments consisted of different sources of lipids, as follows: diet with no extra source of lipids; diet with cottonseed as the source of lipids; diet with soy oil; and diet with used frying soy oil. The intakes of dry matter, neutral detergent fiber, crude protein, total carbohydrates, and non-fibrous carbohydrates were similar for all diets. The use of lipid sources caused a decrease in the apparent digestibility of dry matter, neutral detergent fiber, non-fibrous carbohydrates, and crude protein. The levels of protein, lactose, and defatted dry matter were reduced with the use of lipid sources but did not affect milk production. The use of cottonseed, soy oil, and used frying soy oil as sources of lipids in diets for lactating cows at pasture do not improve milk production, and their use is therefore optional. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-02-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000200056 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000200056 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1806-92902016000200003 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
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.45 n.2 2016 reponame:Revista Brasileira de Zootecnia (Online) instname:Sociedade Brasileira de Zootecnia (SBZ) instacron:SBZ |
instname_str |
Sociedade Brasileira de Zootecnia (SBZ) |
instacron_str |
SBZ |
institution |
SBZ |
reponame_str |
Revista Brasileira de Zootecnia (Online) |
collection |
Revista Brasileira de Zootecnia (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ) |
repository.mail.fl_str_mv |
||bz@sbz.org.br|| secretariarbz@sbz.org.br |
_version_ |
1750318151769260032 |