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| KAHWAGE, P. R.; ESTEVES, S. N.; JACINTO, M. A. C.; BARIONI JUNIOR, W.; MACHADO, R.; ROMANELLO, N.; PASSERI, L. F.; MENDONÇA, K. L. de; GARCIA, A. R.. |
| The present study was carried out to assess the capacity of Morada Nova (MON) and Santa Inês (SIN) hair sheep breeds to maintain homeothermy and its relation with semen quality in a tropical climate. Sixteen rams (MON=7 and SIN=9) were assessed for 12 months. During summer and spring, the Temperature-Humidity Index values surpassed the level indicative of thermal stress, and sweating, respiratory and heart rates increased (P < .05). Those responses allowed animals to dissipate heat, maintain rectal temperature in the physiological range and efficiently avoid thermal stress. Scrotal temperatures rose during summer and spring, but, unlike what occurs in wool breeds of sheep, the thermal gradient between poles of testis increased, which shows efficient... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Tropical climate; Thermal comfort; Adaptability; Sperm; Clima Tropical; Esperma; Ovis Aries; Sheep. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1095409 |
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