Beef Calves. Most beef calves nurse from their mothers until weaning. When you separate and wean one depends on various factors, including forage availability and the cow's condition. If milk production is severely stressing the mother, earlier weaning is in order.
Perhaps the most significant one a baby hears in utero is his mother's voice. Around the seventh and eighth month, a fetus's heart rate slows down slightly whenever his mother is speaking, indicating that mom's voice has a calming effect. By the time they're born, babies can actually recognize their mother's voice. In one study, doctors gave day-old infants pacifiers that were connected to tape recorders. Depending on the babies' sucking patterns, the pacifiers either turned on a tape of their mother's voice or that of an unfamiliar woman's voice.
When will I be able to hear my baby's heartbeat? At around 10 weeks, a Doppler ultrasound will allow you to hear your baby's heartbeat for the first timeâbut her heartbeat will already be visible on ultrasound by the time you are about six weeks pregnant. (To see what your baby's heartbeat looks like at six weeks, check out Drs. Doubilet and Benson's site: yourdevelopingbaby.com.) The first detection of the baby's heartbeat has both medical and emotional significance, says Dr. Doubilet.