中文摘要：

利用红外热像技术测量公牛阴囊表面温度（SST）在动物科学领域具有一定创新意义和实践价值。睾丸温度低于体内温度2~6℃时,才能保证产生可育精子。正常公牛阴囊热像图均匀、左右对称,且阴囊顶部表面温度较底部高（阴囊表面温差,△SST）4~6℃时,其精液品质较好。SST不仅能反映阴囊温度调节能力,而且与△SST及精液各指标有一定的联系,可以用于指示公牛睾丸健康状态和预测其精液品质。在控制测量技术、环境、生物等因素情况下,使用红外热像技术测量SST不仅快速、灵敏度高、信息量大,而且无需接触,对公牛和测定员无侵害。本文综述了红外热像技术的发展,利用红外热像技术测定公牛SST以及SST与精液品质关系的研究,根据实际测定经验总结了使用热像仪测定SST的注意事项,展望了红外热像技术在我国种公牛管理和选育中的应用前景。

英文摘要：

Scrotal surface temperature （SST） measurement using infrared thermography is a significant innovation and has practical value in animal science. Testicular temperature in bulls should be 2℃ to 6℃ below body temperature to produce fertile sperm. Thermography of a normal scrotum is characterized by a symmetrical and constant thermal pattern with a temperature gradient of 4 ℃ to 6 ℃ from the bottom to the top of the scrotum （△ SST）, which related to good quality semen. SST not only reflects the bull＇s ability to regulate its scrotal temperature, but also has a relationship with A SST and semen characteristics, so SST can be an indicator for the health state of the testicles and predicting semen quality. With serious control of technological, environmental, and biological factors, infrared thermography is a quick, sensitive, informative, contactless and noninvasive method of assessing SST for bull and it isnoninvasive for human involving in testing. Current paper reviewed the development of infrared thermography, and research results on bulls＇ SST measurement using infrared thermography and about the relationship between SST and semen quality Based on our own practical experiences, some considerations when using infrared thermography were integrated Finally, the prospects of the application of infrared thermography on bull management and selection in China is discussed.