Abstract Ram testes must be ∼4 to 5 °C cooler than core for normal spermatogenesis, emphasizing importance of intrascrotal temperatures. Our goal was to use implantable data loggers (DL; ∼8 × 25 mm) to measure changes in intrascrotal temperature in rams. We compared DL temperature (DLT) to expected and measured intrascrotal temperatures. In four Ile de France rams (11–12 mo of age), a DL was surgically implanted subcutaneously (ventral aspect of anterior scrotum) with minimal reactions. After healing, DLT was high from ∼7:00 pm to ∼6:00 am (when rams were recumbent), then decreased, with a smaller peak mid-day (recumbency and increased metabolism after feeding). After whole-scrotum insulation (two rams), DLT was increased compared to that in the other two rams in a cool (ambient

中文翻译：

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阴囊皮下组织中的数据记录器可靠地评估公羊的阴囊内温度

摘要 Ram 睾丸必须比正常精子生成的核心温度低 4 至 5°C，这强调了阴囊内温度的重要性。我们的目标是使用植入式数据记录器（DL；~8 × 25 mm）来测量公羊阴囊内温度的变化。我们将 DL 温度 (DLT) 与预期和测量的阴囊内温度进行了比较。在四只法兰西岛公羊（11-12 个月大）中，DL 被手术植入皮下（前阴囊的腹侧），反应最小。愈合后，DLT 在下午 7:00 到上午 6:00 之间升高（当公羊卧床时），然后下降，中午的峰值较小（卧床和进食后新陈代谢增加）。全阴囊隔热（两只公羊）后，与其他两只公羊相比，在凉爽（环境温度）中的 DLT 增加