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
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , |
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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Brazilian Journal of Veterinary Research and Animal Science |
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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 |
_version_ |
1797051558951649280 |