Although she showed very minimal signs of estrus Jean came over and inseminated Grace on Wednesday. We were both gratified to see a nice clear discharge indicating that she was in season.
Lottie also showed no signs but Jean inseminated her anyway as she had been injected. However, her cervix was closed so it was probably a waste of time.
When you use estrumate it is a blanket insemination of all animals is frequently carried out in case you miss the physical signs.
Local House Cows 