oestrus detection

例句：

1. 1. The veterinarian performed an oestrus detection to determine the best time for breeding.
   兽医进行了一次发情检测，以确定最佳的繁殖时间。
2. 2.The research team conducted oestrus detection to study the effects of hormones on female mice.
   研究小组进行了发情检测，以研究激素对雌性小鼠的影响。
3. 3.During oestrus detection, the female mouse was observed to emit a distinctive scent.
   在发情检测期间，雌性小鼠被观察到发出一种独特的气味。