Data/hora: 15/06/2024 12:00:16

Biblioteca(s): | Embrapa Amazônia Oriental; Embrapa Pecuária Sudeste.
Data corrente: | 15/02/2018
Data da última atualização: | 22/11/2018
Autoria: | SILVA, L. K. X.; SOUSA, J. S.; SILVA, A. O. A.; LOURENÇO JUNIOR, J. B.; FATURI, C.; MARTORANO, L. G.; FRANCO, I. M.; PANTOJA, M. H. A.; BARROS, D. V.; GARCIA, A. R.
Afiliação: | L. K. X. Silva, UFPA; J. S. SOUSA, UFPA; A. O. A. SILVA, UFPA; JOSÉ DE BRITO LOURENÇO JUNIOR, UFPA; C. FATURI, UFRA; LUCIETA GUERREIRO MARTORANO, CPATU; I. M. FRANCO, UFPA; M. H. A. PANTOJA, UFPA; D. V. BARROS, UFPA; ALEXANDRE ROSSETTO GARCIA, CPPSE.
Título: | Testicular thermoregulation, scrotal surface temperature patterns and semen quality of water buffalo bulls reared in a tropical climate.
Ano de publicação: | 2018
Fonte/Imprenta: | Andrologia, v. 50, n. 2, e12836, Mar. 2018.
DOI: | 10.1111/and.12836
Idioma: | Inglês
Conteúdo: | This study evaluated the capacity of thermoregulation and its consequences on the scrotal surface temperature patterns and semen quality of buffalo bulls raised in a wet tropical climate. Eleven water buffaloes were evaluated in the rainiest, in the transitional and in the less rainy season. Air temperature and humidity were consistently high, but the animals did not show thermal stress in any season. The scrotal temperature gradient of buffalo bulls using infrared thermography was described, and three parallel and decreasing thermal bands were characterised. Sperm quality (n = 176 ejaculates) was maintained in normal parameters over the periods. Pearson's coefficients showed that sperm volume and progressive motility were negatively correlated with ocular globe, epididymal tail and minimum scrotal temperatures (p < .01). Sperm membrane integrity was negatively influenced by increases in epididymal tail and minimum scrotal temperatures (p < .01). Ocular globe temperature also showed positive correlation with rectal, spermatic cord, and epididymal tail temperatures (p < .01). Therefore, even under high temperature and humidity, the thermoregulatory system was effective in preventing heat stress and the normality of scrotal surface temperatures, spermatogenesis and sperm maturation were maintained.
Palavras-Chave: | Bubalino; Escroto; Temperaturas escrotais; Termografia infravermelha.
Thesagro: | Bubalus Bubalis; Sêmen; Temperatura.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
Registro original: | Embrapa Amazônia Oriental (CPATU)

Exemplares:

CPATU - (54716-1) - UPC - AP - DD -  -  -  - DIS
CPPSE - (24345-1) - UPC - AP - DD - PROCI-2018.00015 - SIL - 2018.00018 - DIS