Influence of temperature and air flow in the food intake and weigth gain in Wistar rats (Rattus norvegicus) kept on microenvironmental system for laboratory animals

Detalhes bibliográficos
Autor(a) principal: Martinewski, Alexandre
Data de Publicação: 2008
Outros Autores: Souza, Nívea Lopes de, Merusse, José Luiz Bernardino
Tipo de documento: Artigo
Idioma: por
Título da fonte: Brazilian Journal of Veterinary Research and Animal Science
Texto Completo: https://www.revistas.usp.br/bjvras/article/view/26736
Resumo: Wistar rats had been kept individually, in metabolic wire cages, without shelter, in microenvironmental system, under direct air flow at 0,6 m/s, under temperatures of 22º, 24º, 26º, 28º and 30º C. The food consumption and the weight gain had been compared in the end of 5 days (ANOVA; Tukey-Kramer). In the total, 7 groups, 10 animals each, had been compared. For the 22ºC temperature, had been used 3 groups, one experimental and two controls. One of them was kept in similar ambient of conventional laboratory animal rooms conditions (general diluitory ventilation, GDV) - C1. The other control group (C2) was kept in the interior of the equipment of microenvironmental ventilation, however, without the direct air flow, simulating the GDV. The gotten results demonstrate clearly that animal kept under direct microenvironmental ventilation at 26º, 28º and 30ºC have the same gain of corporal mass that C1 group. The groups kept at 22º and 24ºC, had less corporal mass gain when compared to C1 (p<0,001 and p<0,01 respectively). The weight gain for all the experimental groups, when compared to C2, presents statistical differences, except 30ºC group, that was equal to C2. The food consumption of all the groups was constant. Only the 30ºC group presented a reduction in the food consumption when compared with the groups C1 and C2 (p<0,05 for the two comparisons).
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spelling Influence of temperature and air flow in the food intake and weigth gain in Wistar rats (Rattus norvegicus) kept on microenvironmental system for laboratory animalsInfluência da temperatura e do fluxo de ar sobre o consumo de ração e ganho de peso em ratos Wistar (Rattus norvegicus) mantidos em sistema microambientalAnimais de laboratórioRatosGanho de pesoMicroambienteLaboratory AnimalsRatsWeight gainMicroenvironmentWistar rats had been kept individually, in metabolic wire cages, without shelter, in microenvironmental system, under direct air flow at 0,6 m/s, under temperatures of 22º, 24º, 26º, 28º and 30º C. The food consumption and the weight gain had been compared in the end of 5 days (ANOVA; Tukey-Kramer). In the total, 7 groups, 10 animals each, had been compared. For the 22ºC temperature, had been used 3 groups, one experimental and two controls. One of them was kept in similar ambient of conventional laboratory animal rooms conditions (general diluitory ventilation, GDV) - C1. The other control group (C2) was kept in the interior of the equipment of microenvironmental ventilation, however, without the direct air flow, simulating the GDV. The gotten results demonstrate clearly that animal kept under direct microenvironmental ventilation at 26º, 28º and 30ºC have the same gain of corporal mass that C1 group. The groups kept at 22º and 24ºC, had less corporal mass gain when compared to C1 (p<0,001 and p<0,01 respectively). The weight gain for all the experimental groups, when compared to C2, presents statistical differences, except 30ºC group, that was equal to C2. The food consumption of all the groups was constant. Only the 30ºC group presented a reduction in the food consumption when compared with the groups C1 and C2 (p<0,05 for the two comparisons).Ratos wistar foram mantidos individualmente, em gaiolas metabólicas de arame, sem abrigo, em sistema microambiental, sob fluxo direto de ar a 0,6 m/s, nas temperaturas de 22º, 24º, 26º, 28º e 30º C. O consumo de ração e o ganho de peso foram comparados do final de 5 dias (ANOVA; Tukey-Kramer). No total, sete grupos de 10 animais cada foram comparados. Para a faixa de 22ºC foram utilizados três grupos, sendo um grupo experimental e dois grupos controles. Um deles foi mantido em condições ambientais semelhantes a biotérios convencionais sob ventilação geral diluidora (VGD) - C1. O outro grupo controle (C2) foi mantido no interior do equipamento de ventilação microambiental, porém, sem o direcionamento de ar, simulando a VGD. Os resultados obtidos demonstram claramente que animais mantidos sob ventilação microambiental direta a 26º, 28º e 30ºC apresentam o mesmo ganho de massa corpórea que animais do grupo C1. Os grupos de animais mantidos a 22º e 24ºC, apresentaram menor ganho de massa corpórea quando comparados a C1 (p<0,001 e p<0,01 respectivamente). O ganho de peso de todos os grupos experimentais, quando comparado ao C2, apresenta diferenças estatísticas, exceto o mantido a 30ºC que apresentou índice de ganho de peso equivalente a C2. O consumo de ração de todos os grupos se manteve constante. Somente o grupo E5 apresentou uma redução no consumo de ração quando comparado aos grupos C1 e C2 (p<0,05 para as duas comparações).Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia2008-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/bjvras/article/view/2673610.11606/S1413-95962008000700014Brazilian Journal of Veterinary Research and Animal Science; Vol. 45 (2008): Suplemento; 98-103Brazilian Journal of Veterinary Research and Animal Science; Vol. 45 (2008): Suplemento; 98-103Brazilian Journal of Veterinary Research and Animal Science; v. 45 (2008): Suplemento; 98-103Brazilian Journal of Veterinary Research and Animal Science; V. 45 (2008): Suplemento; 98-1031678-44561413-9596reponame:Brazilian Journal of Veterinary Research and Animal Scienceinstname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)instacron:USPporhttps://www.revistas.usp.br/bjvras/article/view/26736/28519Martinewski, AlexandreSouza, Nívea Lopes deMerusse, José Luiz Bernardinoinfo:eu-repo/semantics/openAccess2020-06-23T04:12:41Zoai:revistas.usp.br:article/26736Revistahttps://www.revistas.usp.br/bjvrasPUBhttps://www.revistas.usp.br/bjvras/oaibjvras@usp.br1413-95961413-9596opendoar:https://www.revistas.usp.br/bjvras/index2023-01-12T16:43:00.853880Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)false
dc.title.none.fl_str_mv Influence of temperature and air flow in the food intake and weigth gain in Wistar rats (Rattus norvegicus) kept on microenvironmental system for laboratory animals
Influência da temperatura e do fluxo de ar sobre o consumo de ração e ganho de peso em ratos Wistar (Rattus norvegicus) mantidos em sistema microambiental
title Influence of temperature and air flow in the food intake and weigth gain in Wistar rats (Rattus norvegicus) kept on microenvironmental system for laboratory animals
spellingShingle Influence of temperature and air flow in the food intake and weigth gain in Wistar rats (Rattus norvegicus) kept on microenvironmental system for laboratory animals
Martinewski, Alexandre
Animais de laboratório
Ratos
Ganho de peso
Microambiente
Laboratory Animals
Rats
Weight gain
Microenvironment
title_short Influence of temperature and air flow in the food intake and weigth gain in Wistar rats (Rattus norvegicus) kept on microenvironmental system for laboratory animals
title_full Influence of temperature and air flow in the food intake and weigth gain in Wistar rats (Rattus norvegicus) kept on microenvironmental system for laboratory animals
title_fullStr Influence of temperature and air flow in the food intake and weigth gain in Wistar rats (Rattus norvegicus) kept on microenvironmental system for laboratory animals
title_full_unstemmed Influence of temperature and air flow in the food intake and weigth gain in Wistar rats (Rattus norvegicus) kept on microenvironmental system for laboratory animals
title_sort Influence of temperature and air flow in the food intake and weigth gain in Wistar rats (Rattus norvegicus) kept on microenvironmental system for laboratory animals
author Martinewski, Alexandre
author_facet Martinewski, Alexandre
Souza, Nívea Lopes de
Merusse, José Luiz Bernardino
author_role author
author2 Souza, Nívea Lopes de
Merusse, José Luiz Bernardino
author2_role author
author
dc.contributor.author.fl_str_mv Martinewski, Alexandre
Souza, Nívea Lopes de
Merusse, José Luiz Bernardino
dc.subject.por.fl_str_mv Animais de laboratório
Ratos
Ganho de peso
Microambiente
Laboratory Animals
Rats
Weight gain
Microenvironment
topic Animais de laboratório
Ratos
Ganho de peso
Microambiente
Laboratory Animals
Rats
Weight gain
Microenvironment
description Wistar rats had been kept individually, in metabolic wire cages, without shelter, in microenvironmental system, under direct air flow at 0,6 m/s, under temperatures of 22º, 24º, 26º, 28º and 30º C. The food consumption and the weight gain had been compared in the end of 5 days (ANOVA; Tukey-Kramer). In the total, 7 groups, 10 animals each, had been compared. For the 22ºC temperature, had been used 3 groups, one experimental and two controls. One of them was kept in similar ambient of conventional laboratory animal rooms conditions (general diluitory ventilation, GDV) - C1. The other control group (C2) was kept in the interior of the equipment of microenvironmental ventilation, however, without the direct air flow, simulating the GDV. The gotten results demonstrate clearly that animal kept under direct microenvironmental ventilation at 26º, 28º and 30ºC have the same gain of corporal mass that C1 group. The groups kept at 22º and 24ºC, had less corporal mass gain when compared to C1 (p<0,001 and p<0,01 respectively). The weight gain for all the experimental groups, when compared to C2, presents statistical differences, except 30ºC group, that was equal to C2. The food consumption of all the groups was constant. Only the 30ºC group presented a reduction in the food consumption when compared with the groups C1 and C2 (p<0,05 for the two comparisons).
publishDate 2008
dc.date.none.fl_str_mv 2008-12-01
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://www.revistas.usp.br/bjvras/article/view/26736
10.11606/S1413-95962008000700014
url https://www.revistas.usp.br/bjvras/article/view/26736
identifier_str_mv 10.11606/S1413-95962008000700014
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://www.revistas.usp.br/bjvras/article/view/26736/28519
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 Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
dc.source.none.fl_str_mv Brazilian Journal of Veterinary Research and Animal Science; Vol. 45 (2008): Suplemento; 98-103
Brazilian Journal of Veterinary Research and Animal Science; Vol. 45 (2008): Suplemento; 98-103
Brazilian Journal of Veterinary Research and Animal Science; v. 45 (2008): Suplemento; 98-103
Brazilian Journal of Veterinary Research and Animal Science; V. 45 (2008): Suplemento; 98-103
1678-4456
1413-9596
reponame:Brazilian Journal of Veterinary Research and Animal Science
instname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
instacron:USP
instname_str Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
instacron_str USP
institution USP
reponame_str Brazilian Journal of Veterinary Research and Animal Science
collection Brazilian Journal of Veterinary Research and Animal Science
repository.name.fl_str_mv Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
repository.mail.fl_str_mv bjvras@usp.br
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