Dietary lutein supplementation on diet digestibility and blood parameters of dogs

ABSTRACT: The objective of the present study was to evaluate the digestibility and the immunomodulatory effects of diets supplemented with lutein in dogs. Sixteen adult dogs were distributed in two groups (control and test) in a completely randomized design. Dogs were fed for 120 days with iso-nutri...

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Main Authors: Laís Guimarães Alarça, Fabiane Yukiko Murakami, Ananda Portella Félix, Everton Luis Krabbe, Simone Gisele de Oliveira, Sebastião Aparecido Borges da Silva
Format: Article
Language:English
Published: Universidade Federal de Santa Maria
Series:Ciência Rural
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202195&lng=en&tlng=en
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author Laís Guimarães Alarça
Fabiane Yukiko Murakami
Ananda Portella Félix
Everton Luis Krabbe
Simone Gisele de Oliveira
Sebastião Aparecido Borges da Silva
author_facet Laís Guimarães Alarça
Fabiane Yukiko Murakami
Ananda Portella Félix
Everton Luis Krabbe
Simone Gisele de Oliveira
Sebastião Aparecido Borges da Silva
author_sort Laís Guimarães Alarça
collection DOAJ
description ABSTRACT: The objective of the present study was to evaluate the digestibility and the immunomodulatory effects of diets supplemented with lutein in dogs. Sixteen adult dogs were distributed in two groups (control and test) in a completely randomized design. Dogs were fed for 120 days with iso-nutritive diets, which only difference was the inclusion of 45g lutein/kg in the diet fed to the test group. Blood samples were collected in the beginning and at the end of the experimental period to evaluate total lymphocyte, lymphocyte proliferation index, and CD4+ and CD8+ lymphocyte counts. In order to evaluate apparent diet digestibility, dogs were housed in metabolic cages for ten days (five days of adaptation and five for faeces total collection). Coefficients of total tract apparent digestibility were not different between dogs in the control and the lutein-fed groups. Lutein dietary supplementation did not influence total lymphocyte or lymphocyte proliferation index, but resulted in higher CD4+ and CD8+ lymphocyte numbers. Lutein supplementation did not affect diet digestibility or lymphocyte proliferation index in dogs. However, it increases the concentrations of CD4+ and CD8+ T-lymphocyte subtypes.
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spelling doaj.art-ae68b8979caa4a958f1b7a9f2d10196f2022-12-22T00:43:19ZengUniversidade Federal de Santa MariaCiência Rural1678-459646122195220110.1590/0103-8478cr20151493S0103-84782016001202195Dietary lutein supplementation on diet digestibility and blood parameters of dogsLaís Guimarães AlarçaFabiane Yukiko MurakamiAnanda Portella FélixEverton Luis KrabbeSimone Gisele de OliveiraSebastião Aparecido Borges da SilvaABSTRACT: The objective of the present study was to evaluate the digestibility and the immunomodulatory effects of diets supplemented with lutein in dogs. Sixteen adult dogs were distributed in two groups (control and test) in a completely randomized design. Dogs were fed for 120 days with iso-nutritive diets, which only difference was the inclusion of 45g lutein/kg in the diet fed to the test group. Blood samples were collected in the beginning and at the end of the experimental period to evaluate total lymphocyte, lymphocyte proliferation index, and CD4+ and CD8+ lymphocyte counts. In order to evaluate apparent diet digestibility, dogs were housed in metabolic cages for ten days (five days of adaptation and five for faeces total collection). Coefficients of total tract apparent digestibility were not different between dogs in the control and the lutein-fed groups. Lutein dietary supplementation did not influence total lymphocyte or lymphocyte proliferation index, but resulted in higher CD4+ and CD8+ lymphocyte numbers. Lutein supplementation did not affect diet digestibility or lymphocyte proliferation index in dogs. However, it increases the concentrations of CD4+ and CD8+ T-lymphocyte subtypes.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202195&lng=en&tlng=encarotenoidsCD4+CD8+immunity
spellingShingle Laís Guimarães Alarça
Fabiane Yukiko Murakami
Ananda Portella Félix
Everton Luis Krabbe
Simone Gisele de Oliveira
Sebastião Aparecido Borges da Silva
Dietary lutein supplementation on diet digestibility and blood parameters of dogs
Ciência Rural
carotenoids
CD4+
CD8+
immunity
title Dietary lutein supplementation on diet digestibility and blood parameters of dogs
title_full Dietary lutein supplementation on diet digestibility and blood parameters of dogs
title_fullStr Dietary lutein supplementation on diet digestibility and blood parameters of dogs
title_full_unstemmed Dietary lutein supplementation on diet digestibility and blood parameters of dogs
title_short Dietary lutein supplementation on diet digestibility and blood parameters of dogs
title_sort dietary lutein supplementation on diet digestibility and blood parameters of dogs
topic carotenoids
CD4+
CD8+
immunity
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202195&lng=en&tlng=en
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