Efeitos do Estresse Térmico Sobre a Produção, Composição Química do Leite e Respostas Termorreguladoras de Cabras da Raça Alpina

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dc.contributor.authorDe Albuquerque Brasil, Lúcia Helena
dc.contributor.authorWechesler, Francisco Stefano [UNESP]
dc.contributor.authorBaccari Jr., Flávio
dc.contributor.authorGonçalves, Heraldo Cesar [UNESP]
dc.contributor.authorBonassi, Ismael Antônio [UNESP]
dc.contributor.institutionUFRPE
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUEL
dc.date.accessioned2022-04-28T19:56:28Z
dc.date.available2022-04-28T19:56:28Z
dc.date.issued2000-11-01
dc.description.abstractSix Alpine goats with an average milk yield of 2.5 kg/day were randomly assigned to two groups of three and allotted to thermoneutral or heat stress conditions, for 56 days in climate chamber room. A crossover experimental design was used. The goats under heat stress were exposed to a diurnal average air temperature plus simulated solar radiation of 33. 84°C. The heat-stressed goats showed elevated respiratory frequency, respiratory minute volume, respiratory evaporation, rectal temperature and sweating rate, while the tidal volume and packed cell volume decreased. Further weight loss, decreased feed intake, and their water consumption doubled. The milk yield, the percentage of fat, protein, lactose and total solid contents decreased. The contents of chloride, calcium and phosphorus did not change. The goats mobilized the respiratory and sweating systems to lose heat to maintain homeothermy. The association between high air temperature and simulated solar radiation reduced the milk yield and the content of some milk components.en
dc.description.affiliationDep. Zootecnia UFRPE, Recife - PE
dc.description.affiliationDep. Prod. e Exploracao Anim. FMVZ UNESP, CEP 18618-000, Campus de Botucatu
dc.description.affiliationDep. Clin. Veterinária CCA UEL, Londrina - PR
dc.description.affiliationDep. Tecnologia de Alimentos FMVZ UNESP, CEP18618-000, Campus de Botucatu
dc.description.affiliationUnespDep. Prod. e Exploracao Anim. FMVZ UNESP, CEP 18618-000, Campus de Botucatu
dc.description.affiliationUnespDep. Tecnologia de Alimentos FMVZ UNESP, CEP18618-000, Campus de Botucatu
dc.format.extent1632-1641
dc.identifier.citationRevista Brasileira de Zootecnia, v. 29, n. 6, p. 1632-1641, 2000.
dc.identifier.issn0100-4859
dc.identifier.scopus2-s2.0-0346356130
dc.identifier.urihttp://hdl.handle.net/11449/224418
dc.language.isopor
dc.relation.ispartofRevista Brasileira de Zootecnia
dc.sourceScopus
dc.subjectChemical composition
dc.subjectGoats
dc.subjectMilk production
dc.subjectThermal stress
dc.titleEfeitos do Estresse Térmico Sobre a Produção, Composição Química do Leite e Respostas Termorreguladoras de Cabras da Raça Alpinapt
dc.title.alternativeThermal Stress Effects on Milk Yield and Chemical Composition and Thermoregulatory Responses of Lactating Alpines Goatsen
dc.typeArtigo

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