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.
How soon can my babyâs heart beat be heard? Prenatal Testing No comments Your babyâs heart begins beating around 22 days after conception, about 5 weeks after your last period. At this stage, the heart is too tiny to hear even with an ultrasound. However, it may be detected as early as 4 weeks after conception as a flickering in the chest via ultrasound. After 9 or 10 weeks of pregnancy, you might be able to hear your babyâs heartbeat. Typically your physician will use a Doppler instrument to do this. A Doppler instrument bounces sound waves off the fetal heart. These sounds return, affected by what they bounced off of, and the changes in these waves are picked up by the receiver in the Doppler.