Download Data/hora: 06/05/2017 09:48:47 Biblioteca(s): Embrapa Amazônia

Data/hora: 09/06/2017 06:57:49
Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Pecuária Sudeste.
Data corrente: 25/05/2015
Data da última atualização: 03/10/2016
Autoria: BARROS, D. V.; SILVA, L. K. X.; LOURENÇO JUNIOR, J. de B.; SILVA, A. O. A. da;
SILVA, A. G. M. e; FRANCO, I. M.; OLIVEIRA, C. M. C.; THOLON, P.;
MARTORANO, L. G.; GARCIA, A. R.
Afiliação: DANIEL VALE BARROS, FACULTY OF VETERINARY MEDICINE, FEDERAL
UNIVERSITY OF PARÁ-UFPA/BELÉM; LILIAN KÁTIA XIMENES SILVA,
FACULTY OF VETERINARY MEDICINE, FEDERAL UNIVERSITY OF
PARÁ-UFPA/BELÉM; JOSÉ DE BRITO LOURENÇO JUNIOR, UEPA; Aluizio Otávio
Almeida da Silva, UFPA; ANDRÉ GUIMARÃES MACIEL E SILVA, FACULTY OF
VETERINARY MEDICINE, FEDERAL UNIVERSITY OF PARÁ-UFPA/BELÉM;
IRVING MONTANAR FRANCO, FACULTY OF ARCHITECTURE AND
URBANISM, FEDERAL UNIVERSITY OF PARÁ-UFPA/BELÉM; CARLOS MAGNO
CHAVES OLIVEIRA, FACULTY OF VETERINARY MEDICINE, FEDERAL
UNIVERSITY OF PARÁ-UFPA/BELÉM; PATRICIA THOLON, CPPSE; LUCIETA
GUERREIRO MARTORANO, CPATU; ALEXANDRE ROSSETTO GARCIA, CPPSE.
Título: Evaluation of thermal comfort, physiological, hematological, and seminal features of
buffalo bulls in an artificial insemination station in a tropical environment.
Ano de publicação: 2015
Fonte/Imprenta: Tropical Animal Health and Production, v. 47, n. 5, p. 805-813, June 2015.
DOI: 10.1007/s11250-015-0792-9
Idioma: Inglês
Português
Conteúdo: This study aimed to assess the variation over time in thermal comfort indices and the
behavior of physiological parameters related to thermolysis, blood parameters, and semen
in natura of buffalo bulls reared in tropical climate. The study was carried out in an
artificial insemination station under a humid tropical climate (Afi according to Köppen).
Ten water buffalo bulls (Bubalus bubalis) were used during the 5 months (April to
August) of study. The environmental Temperature Humidity Index (THId) and the pen
microclimate Temperature Humidity Index (THIp) were calculated. Every 25 days,
respiratory rate (RR), heart rate (HR), rectal temperature (RT), and Benezra?s thermal
comfort index (BTCI) were assessed in the morning and in the afternoon. A blood assay
was performed every month, while semen was collected weekly. THIp did not vary over
the months (P?>?0.05) and was higher in the afternoon than in the morning (77.7?±?2.6
versus 81.8?±?2.1, P?<?0.05). RR, HR, and BTCI significantly increased over the months
and were different between the periods of the day (P?>?0.05) but within the physiological
limits. RT varied between the periods of the day and decreased over the months, being the
lowest in August (37.8?±?0.7 °C), time-impacted hematocrit, mean corpuscular volume,
hemoglobin levels, and spermatic gross motility and vigor (P?<?0.05). Thus, buffalo bulls
reared under a humid tropical climate may have variations in thermal comfort during the
hotter periods but are able to efficiently activate thermoregulatory mechanisms and
maintain homeothermy, hence preserving their physiological and seminal parameters at
normal levels.
Palavras-Chave: Animal welfare; Bubalino; Bubalus bubalis; Bubalusbubalis; Environmental effect;
Hematological parameters; Semen.
Thesagro: ASASASA.
Categoria do assunto: -L Ciência Animal e Produtos de Origem Animal
Registro original: Embrapa Amazônia Oriental (CPATU)
Exemplares: CPATU - (51580-1) - UPC - SP - PP - 0372 - - 0372 - DIS
CPPSE - (22936-1) - UPC - SP - PP - PROCI-2015.00014 - BAR - 2015.00014 - DIS