Desenvolvimento e performance reprodutiva de camundongos Swiss em ambiente enriquecido
Autor(a) principal: | |
---|---|
Data de Publicação: | 2009 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da Universidade Federal do Ceará (UFC) |
Texto Completo: | http://www.repositorio.ufc.br/handle/riufc/59000 |
Resumo: | The present study investigated the effects of environment enrichment on the development and reproductive perform ance of an outbred Swiss strain. Physical enrichment consisted of free access of animals to tubular devices of different shapes and sizes. The development evaluation was done by monitoring growth rate during 39 days, from weaning (21 days) to the onset of sexual maturity (60 days of age). Over five consecutive gestations (105 days), the following variables were monitored: litter size, number of animals born alive; number of pups alive at 12 hours and on days 4, 9, 12, 15 and 18; number of animals weaned per litter; average weight of litters on days 4, 9, 12, 15 and 18. The reproductive performance was then evaluated using the inclusion of these variables in the indices of gestation and birth, viability, lactation, survival success, mating success and production. The results showed that the environmental enrichment did not influence, in a significant way, the evaluated parameters. However, there is no reason to deprive the animals from an enriched environment where they can develop their natural instinctive behaviour and guarantee health and well-being. |
id |
UFC-7_798737187eeb2078d21a55a7e5d79db5 |
---|---|
oai_identifier_str |
oai:repositorio.ufc.br:riufc/59000 |
network_acronym_str |
UFC-7 |
network_name_str |
Repositório Institucional da Universidade Federal do Ceará (UFC) |
repository_id_str |
|
spelling |
Desenvolvimento e performance reprodutiva de camundongos Swiss em ambiente enriquecidoDevelopment and reproductive performance of Swiss mice in an enriched environmentEnvironmental enrichmentDevelopmentReproductive performanceMiceThe present study investigated the effects of environment enrichment on the development and reproductive perform ance of an outbred Swiss strain. Physical enrichment consisted of free access of animals to tubular devices of different shapes and sizes. The development evaluation was done by monitoring growth rate during 39 days, from weaning (21 days) to the onset of sexual maturity (60 days of age). Over five consecutive gestations (105 days), the following variables were monitored: litter size, number of animals born alive; number of pups alive at 12 hours and on days 4, 9, 12, 15 and 18; number of animals weaned per litter; average weight of litters on days 4, 9, 12, 15 and 18. The reproductive performance was then evaluated using the inclusion of these variables in the indices of gestation and birth, viability, lactation, survival success, mating success and production. The results showed that the environmental enrichment did not influence, in a significant way, the evaluated parameters. However, there is no reason to deprive the animals from an enriched environment where they can develop their natural instinctive behaviour and guarantee health and well-being.O presente estudo investigou efeitos do enriquecimento ambiental sobre o desenvolvimento e a performance reprodu tiva de camundongos outbred da linhagem Swiss. O enriquecimento teve como base o livre acesso dos animais a dis positivos tubulares de tamanhos e formas diferentes. A avaliação do desenvolvimento a partir da taxa de crescimento decorreu por um período de 39 dias, desde o desmame (21 dias) até os 60 dias de vida (maturidade sexual). Durante cinco gestações consecutivas (105 dias), foram registradas as seguintes variáveis: média do tamanho da ninhada, nú mero de animais nascidos vivos; número de filhotes vivos em 12 horas, e nos dias 4, 9, 12, 15 e 18; número de animais desmamados por ninhada; e a média do peso dos filhotes nos dias 4, 9, 12, 15 e 18. A performance reprodutiva foi então avaliada a partir da inclusão dessas variáveis nos índices de gestação e nascimento, viabilidade, lactação, su cesso de sobrevivência, sucesso de acasalamento e produção. Os resultados obtidos mostraram que o enriquecimento ambiental não influenciou significativamente no desenvolvimento e na performance reprodutiva de camundongos da linhagem Swiss para nenhum dos parâmetros avaliados. Contudo, não há motivo para privar os animais de um am biente enriquecido onde possam desenvolver seu comportamento instintivo natural e, consequentemente, viver com saúde e bem-estar.2021-06-15T16:12:04Z2021-06-15T16:12:04Z2009info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfCARVALHO, A. F. U. et al. Development and reproductive performance of Swiss mice in an enriched environment. Brazilian Journal of Biology, [s.l], v. 69, n. 1, p. 153-160, 2009.http://www.repositorio.ufc.br/handle/riufc/59000Carvalho, Ana de Fátima F. UranoAraújo, Ana JérsiaFarias, Davi FelipeRocha-Bezerra, Lady Clarissa Brito daCavalheiro, M. G.info:eu-repo/semantics/openAccessengreponame:Repositório Institucional da Universidade Federal do Ceará (UFC)instname:Universidade Federal do Ceará (UFC)instacron:UFC2023-10-10T19:31:30Zoai:repositorio.ufc.br:riufc/59000Repositório InstitucionalPUBhttp://www.repositorio.ufc.br/ri-oai/requestbu@ufc.br || repositorio@ufc.bropendoar:2023-10-10T19:31:30Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)false |
dc.title.none.fl_str_mv |
Desenvolvimento e performance reprodutiva de camundongos Swiss em ambiente enriquecido Development and reproductive performance of Swiss mice in an enriched environment |
title |
Desenvolvimento e performance reprodutiva de camundongos Swiss em ambiente enriquecido |
spellingShingle |
Desenvolvimento e performance reprodutiva de camundongos Swiss em ambiente enriquecido Carvalho, Ana de Fátima F. Urano Environmental enrichment Development Reproductive performance Mice |
title_short |
Desenvolvimento e performance reprodutiva de camundongos Swiss em ambiente enriquecido |
title_full |
Desenvolvimento e performance reprodutiva de camundongos Swiss em ambiente enriquecido |
title_fullStr |
Desenvolvimento e performance reprodutiva de camundongos Swiss em ambiente enriquecido |
title_full_unstemmed |
Desenvolvimento e performance reprodutiva de camundongos Swiss em ambiente enriquecido |
title_sort |
Desenvolvimento e performance reprodutiva de camundongos Swiss em ambiente enriquecido |
author |
Carvalho, Ana de Fátima F. Urano |
author_facet |
Carvalho, Ana de Fátima F. Urano Araújo, Ana Jérsia Farias, Davi Felipe Rocha-Bezerra, Lady Clarissa Brito da Cavalheiro, M. G. |
author_role |
author |
author2 |
Araújo, Ana Jérsia Farias, Davi Felipe Rocha-Bezerra, Lady Clarissa Brito da Cavalheiro, M. G. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Carvalho, Ana de Fátima F. Urano Araújo, Ana Jérsia Farias, Davi Felipe Rocha-Bezerra, Lady Clarissa Brito da Cavalheiro, M. G. |
dc.subject.por.fl_str_mv |
Environmental enrichment Development Reproductive performance Mice |
topic |
Environmental enrichment Development Reproductive performance Mice |
description |
The present study investigated the effects of environment enrichment on the development and reproductive perform ance of an outbred Swiss strain. Physical enrichment consisted of free access of animals to tubular devices of different shapes and sizes. The development evaluation was done by monitoring growth rate during 39 days, from weaning (21 days) to the onset of sexual maturity (60 days of age). Over five consecutive gestations (105 days), the following variables were monitored: litter size, number of animals born alive; number of pups alive at 12 hours and on days 4, 9, 12, 15 and 18; number of animals weaned per litter; average weight of litters on days 4, 9, 12, 15 and 18. The reproductive performance was then evaluated using the inclusion of these variables in the indices of gestation and birth, viability, lactation, survival success, mating success and production. The results showed that the environmental enrichment did not influence, in a significant way, the evaluated parameters. However, there is no reason to deprive the animals from an enriched environment where they can develop their natural instinctive behaviour and guarantee health and well-being. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009 2021-06-15T16:12:04Z 2021-06-15T16:12:04Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
CARVALHO, A. F. U. et al. Development and reproductive performance of Swiss mice in an enriched environment. Brazilian Journal of Biology, [s.l], v. 69, n. 1, p. 153-160, 2009. http://www.repositorio.ufc.br/handle/riufc/59000 |
identifier_str_mv |
CARVALHO, A. F. U. et al. Development and reproductive performance of Swiss mice in an enriched environment. Brazilian Journal of Biology, [s.l], v. 69, n. 1, p. 153-160, 2009. |
url |
http://www.repositorio.ufc.br/handle/riufc/59000 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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.source.none.fl_str_mv |
reponame:Repositório Institucional da Universidade Federal do Ceará (UFC) instname:Universidade Federal do Ceará (UFC) instacron:UFC |
instname_str |
Universidade Federal do Ceará (UFC) |
instacron_str |
UFC |
institution |
UFC |
reponame_str |
Repositório Institucional da Universidade Federal do Ceará (UFC) |
collection |
Repositório Institucional da Universidade Federal do Ceará (UFC) |
repository.name.fl_str_mv |
Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC) |
repository.mail.fl_str_mv |
bu@ufc.br || repositorio@ufc.br |
_version_ |
1809935799627546624 |