Data/hora: 17/06/2024 02:09:40

Biblioteca(s): 	Embrapa Amazônia Oriental; Embrapa Pecuária Sudeste.	
Data corrente: 	25/05/2015	
Data da última atualização: 	15/03/2023	
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 JR, CENTER OF NATURAL SCIENCES AND TECHNOLOGY, UNIVERSITY OF PARÁ STATE-UEPA/BELÉM; ALUIZIO OTÁVIO ALMEIDA DA SILVA, UFPA; ANDRÉ GUIMARÃES MACIEL E SILVA, UFPA; IRVING MONTANAR FRANCO, UFPA; CARLOS MAGNO CHAVES OLIVEIRA, UFPA; 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	
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: 	Bubalino; Environmental effect; Hematological parameters.	
Thesagro: 	Bubalus Bubalis; Sêmen.	
Thesaurus Nal: 	animal welfare.	
Categoria do assunto: 	L Ciência Animal e Produtos de Origem Animal	
Registro original: 	Embrapa Pecuária Sudeste (CPPSE)	
Exemplares: 	CPPSE - (22936-1) - UPC - AP - DD - PROCI-2015.00014 - BAR - 2015.00014 - DIS
CPATU - (51580-1) - UPC - AP - DD -  -  -  - DIS