Physiologic and productive responses of Holstein dairy cows with access to the constant or limited shade

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorDamasceno, J. C.-
Autor(es): dc.creatorBaccari, F.-
Autor(es): dc.creatorTarga, L. A.-
Data de aceite: dc.date.accessioned2021-03-10T17:00:53Z-
Data de disponibilização: dc.date.available2021-03-10T17:00:53Z-
Data de envio: dc.date.issued2014-05-20-
Data de envio: dc.date.issued2014-05-20-
Data de envio: dc.date.issued1998-05-01-
Fonte completa do material: dc.identifierhttp://www.sbz.org.br/revista/artigos/1979.pdf-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/13959-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/13959-
Descrição: dc.descriptionThe work: was carried out to evaluate the physiologic and productive responses of 16 Holstein breed cows, in different lactating stages and production levels, maintained in two free stall corral types, with or without plastic sheet covering, in the southeast-northwest of the covered area edges. The animals were confined in free stall system, during the months of the summer, with access to the constant or Limited shade. A complete randomized experimental design was: used. The physiological variables measured were respiratory frequency (morning an afternoon) and rectal temperature (morning and afternoon). The productive variables were milk production (morning, afternoon and daily), dry matter (DM) intake (% live weight) and efficiency of milk production (kg of milk/kg DM intake). The animals with access to the constant shade presented respiratory frequency (74.1 vs 81.0 breath/min.) and rectal temperature (39.5 vs 39.7 degrees C) lower and mirk production (22.6 vs 20.9 kg/day) and efficiency of milk production (1.3 vs 1.2 kg of milk/kg DM ingested) higher than the animals with access to the limited shade. There was no effect on the dry matter intake.-
Formato: dc.format595-602-
Idioma: dc.languagees-
Publicador: dc.publisherRevista Brasileira Zootecnia Brazilian Journal Animal Sci-
Relação: dc.relationRevista Brasileira de Zootecnia = Brazilian Journal of Animal Science-
Direitos: dc.rightsopenAccess-
Palavras-chave: dc.subjectthermal comfort-
Palavras-chave: dc.subjectheat stress-
Palavras-chave: dc.subjectrespiratory frequency-
Palavras-chave: dc.subjectmilk production-
Palavras-chave: dc.subjectrectal temperature-
Palavras-chave: dc.subjectdairy cows-
Título: dc.titlePhysiologic and productive responses of Holstein dairy cows with access to the constant or limited shade-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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