Alterations in leukocytes parameters of pacu Piaractus mesopotamicus fed diets with graded levels of sunflower oil.
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
Idioma: | por |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/909191 |
Resumo: | Intensification of fish culture systems can raise stress levels of fish and lead to depression of the organic defense mechanisms and increase susceptibility of fish to pathogenic agents. The nutritional status of farmed fish drives the cellular responses to environmental disturbances. Hematological analysis is an important tool to diagnose the inset of diseases, and leukocytes play important roles in the non-specific immunity. Values of leukocytes count are good indicators of fish health status. This work aimed at evaluating the influence of the substitution of dietary soybean oil by sunflower oil on the hematological performance of pacu Piaractus mesopotamicus. Juvenile pacu (14.4 ± 0.4 g) were stocked in 70-L aquaria (15 fish per aquarium) under partial, continuous, individual water renewal system, continuous aeration (dissolved oxygen 5.02 ± 0.87 mg L-1), controlled temperature (26.3 ± 1.4 oC) and photoperiod (12 L: 12 D), and fed for 85 days with diets containing increasing levels sunflower oil (20, 40, 60, 80, 100%) in substitution of soybean oil, a control diet (no sunflower oil) and a commercial feed, in a totally randomized design trial (n=4). Blood samples were drawn at midterm and final experimental period and differences in white blood cells count – total leukocytes, lymphocytes, monocytes, neutrophils and eosinophyls – were determined. Data were submitted to ANOVA and Dunnet ́s test to determine contrasts between treatments and control means. Increased levels of sunflower oil elicited increased proliferation of leukocytes, specially the lymphocytes (P<0.05). |
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Alterations in leukocytes parameters of pacu Piaractus mesopotamicus fed diets with graded levels of sunflower oil.PacuPeixeIntensification of fish culture systems can raise stress levels of fish and lead to depression of the organic defense mechanisms and increase susceptibility of fish to pathogenic agents. The nutritional status of farmed fish drives the cellular responses to environmental disturbances. Hematological analysis is an important tool to diagnose the inset of diseases, and leukocytes play important roles in the non-specific immunity. Values of leukocytes count are good indicators of fish health status. This work aimed at evaluating the influence of the substitution of dietary soybean oil by sunflower oil on the hematological performance of pacu Piaractus mesopotamicus. Juvenile pacu (14.4 ± 0.4 g) were stocked in 70-L aquaria (15 fish per aquarium) under partial, continuous, individual water renewal system, continuous aeration (dissolved oxygen 5.02 ± 0.87 mg L-1), controlled temperature (26.3 ± 1.4 oC) and photoperiod (12 L: 12 D), and fed for 85 days with diets containing increasing levels sunflower oil (20, 40, 60, 80, 100%) in substitution of soybean oil, a control diet (no sunflower oil) and a commercial feed, in a totally randomized design trial (n=4). Blood samples were drawn at midterm and final experimental period and differences in white blood cells count – total leukocytes, lymphocytes, monocytes, neutrophils and eosinophyls – were determined. Data were submitted to ANOVA and Dunnet ́s test to determine contrasts between treatments and control means. Increased levels of sunflower oil elicited increased proliferation of leukocytes, specially the lymphocytes (P<0.05).Thyssia Bomfim Araújo da Silva, ESALQ; JONY KOJI DAIRIKI, CPAA; José Eurico Possebon Cyrino, ESALQ.SILVA, T. B. A. daDAIRIKI, J. K.CYRINO, J. E. P.2011-12-09T11:11:11Z2011-12-09T11:11:11Z2011-12-09T11:11:11Z2011-12-09T11:11:11Z2011-12-0920112011-12-12T11:11:11ZResumo em anais e proceedingsinfo:eu-repo/semantics/publishedVersionIn: SIMPÓSIO INTERNACIONAL DE NUTRIÇÃO E SAÚDE DE PEIXES, 4., 2011, Botucatu. [Trabalhos apresentados...]. Botucatu: FMVZ : UNESP, 2011.http://www.alice.cnptia.embrapa.br/alice/handle/doc/909191porinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-15T23:02:17Zoai:www.alice.cnptia.embrapa.br:doc/909191Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-15T23:02:17Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Alterations in leukocytes parameters of pacu Piaractus mesopotamicus fed diets with graded levels of sunflower oil. |
title |
Alterations in leukocytes parameters of pacu Piaractus mesopotamicus fed diets with graded levels of sunflower oil. |
spellingShingle |
Alterations in leukocytes parameters of pacu Piaractus mesopotamicus fed diets with graded levels of sunflower oil. SILVA, T. B. A. da Pacu Peixe |
title_short |
Alterations in leukocytes parameters of pacu Piaractus mesopotamicus fed diets with graded levels of sunflower oil. |
title_full |
Alterations in leukocytes parameters of pacu Piaractus mesopotamicus fed diets with graded levels of sunflower oil. |
title_fullStr |
Alterations in leukocytes parameters of pacu Piaractus mesopotamicus fed diets with graded levels of sunflower oil. |
title_full_unstemmed |
Alterations in leukocytes parameters of pacu Piaractus mesopotamicus fed diets with graded levels of sunflower oil. |
title_sort |
Alterations in leukocytes parameters of pacu Piaractus mesopotamicus fed diets with graded levels of sunflower oil. |
author |
SILVA, T. B. A. da |
author_facet |
SILVA, T. B. A. da DAIRIKI, J. K. CYRINO, J. E. P. |
author_role |
author |
author2 |
DAIRIKI, J. K. CYRINO, J. E. P. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Thyssia Bomfim Araújo da Silva, ESALQ; JONY KOJI DAIRIKI, CPAA; José Eurico Possebon Cyrino, ESALQ. |
dc.contributor.author.fl_str_mv |
SILVA, T. B. A. da DAIRIKI, J. K. CYRINO, J. E. P. |
dc.subject.por.fl_str_mv |
Pacu Peixe |
topic |
Pacu Peixe |
description |
Intensification of fish culture systems can raise stress levels of fish and lead to depression of the organic defense mechanisms and increase susceptibility of fish to pathogenic agents. The nutritional status of farmed fish drives the cellular responses to environmental disturbances. Hematological analysis is an important tool to diagnose the inset of diseases, and leukocytes play important roles in the non-specific immunity. Values of leukocytes count are good indicators of fish health status. This work aimed at evaluating the influence of the substitution of dietary soybean oil by sunflower oil on the hematological performance of pacu Piaractus mesopotamicus. Juvenile pacu (14.4 ± 0.4 g) were stocked in 70-L aquaria (15 fish per aquarium) under partial, continuous, individual water renewal system, continuous aeration (dissolved oxygen 5.02 ± 0.87 mg L-1), controlled temperature (26.3 ± 1.4 oC) and photoperiod (12 L: 12 D), and fed for 85 days with diets containing increasing levels sunflower oil (20, 40, 60, 80, 100%) in substitution of soybean oil, a control diet (no sunflower oil) and a commercial feed, in a totally randomized design trial (n=4). Blood samples were drawn at midterm and final experimental period and differences in white blood cells count – total leukocytes, lymphocytes, monocytes, neutrophils and eosinophyls – were determined. Data were submitted to ANOVA and Dunnet ́s test to determine contrasts between treatments and control means. Increased levels of sunflower oil elicited increased proliferation of leukocytes, specially the lymphocytes (P<0.05). |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-12-09T11:11:11Z 2011-12-09T11:11:11Z 2011-12-09T11:11:11Z 2011-12-09T11:11:11Z 2011-12-09 2011 2011-12-12T11:11:11Z |
dc.type.driver.fl_str_mv |
Resumo em anais e proceedings |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
In: SIMPÓSIO INTERNACIONAL DE NUTRIÇÃO E SAÚDE DE PEIXES, 4., 2011, Botucatu. [Trabalhos apresentados...]. Botucatu: FMVZ : UNESP, 2011. http://www.alice.cnptia.embrapa.br/alice/handle/doc/909191 |
identifier_str_mv |
In: SIMPÓSIO INTERNACIONAL DE NUTRIÇÃO E SAÚDE DE PEIXES, 4., 2011, Botucatu. [Trabalhos apresentados...]. Botucatu: FMVZ : UNESP, 2011. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/909191 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
_version_ |
1822720845444808704 |