Friday's REPRO TIP - So when is she really due??? When will she deliver those puppies??
Breeders often try to calculate a bitch's due date based on when she was bred, but because bitches are often bred for several days in a row, this can seem like hitting a moving target. When the ovulation date is known (from PROGESTERONE testing), the due date is always 63 days from that day. If she ovulated on a Wednesday, her due date is also on a Wednesday (just 9 weeks later).
Today's tip is meant to help in those cases where ovulation dates are NOT known. Bitches will typically go OUT of heat almost exactly 1 week after ovulation, so that gives us another way to guesstimate a bitch's due date: she will quite predictably whelp 8 WEEKS after she goes out of heat and the male loses interest.
So when all else fails (no ovulation timing information available, just multiple breedings over a long period of time), remember - counting 8 weeks from the day she went OUT of heat is your best bet for identifying her due date! HAPPY EASTER EVERYONE!!