Cows naturally eat the placenta after their calf is born. This is to deter predators from investigating the birthing site and possibly finding the cow's calf. It is something done by all ungulate mothers, both domesticated and wild.
If the afterbirth, or placenta, comes out before the calf during calving in a cow, it could be due to a premature detachment of the placenta from the uterus. This can happen if there are issues with the placenta or uterus, leading to complications during the birthing process. It is important to consult a veterinarian in such situations to ensure the health and safety of the cow and calf.
No.
YesYes
The placenta is supposed to be naturally expelled around 5 to 10 hours after the cow has calved.
Oxytocin is one "medicine" recommended by vets to help a cow get rid of retained placenta, even if it's just pieces of it.
No. The human embryo would die because it cannot attach itself to the uterine wall of the cow due to the fact that the placenta of a human is much different from the placenta of a cow, and that a human and a cow are genetically very different from each other.
Any sound that the cow has associated with being fed.
Depends on what the cow's eating and how much it's fed.
Normally a cow should push out the placenta a few minutes to 48 hours after giving birth. Any longer, such as 10 days, would be considered "retaining of the placenta." If a cow retains her placenta, DO NOT PULL IT OUT!! Contact the vet to get some hormone such as oxytocin or something similar to encourage her uterus to contract and push the placenta out. If you pull it out you will cause metritis or uterine infection, which is NOT good for your cow.
You cannot make a cow. Feed is to be fed to a cow, not to make one.
Nutrients pass through the placenta into the baby through the umbilical cord.
Your dog is not a cow