No. Get the vet out to take a look at him.
It may be humane to put it down. But there are a vast number of reasons why a calf won't get up, and it's best to talk to your veterinarian or get the calf to a large animal vet to diagnose why it won't stand up on its own.
The most accurate way to tell the age of your calf is by looking at his front teeth. A newborn calf will have no teeth; a week old calf will only have maybe one or two teeth that have popped up already; a 1 month old calf will have all 8 lower incisors already.
Because their rumen isn't fully developed. Calves are born as monogastrics, with the other three chambers as only sacs of useless skin along with their abomasum or their true stomach, which resembles the stomach of all other omnivores and carnivores. The rumen doesn't start to begin to develop until a week after the calf is born; the rumen completes development by the time the calf's 3 to 4 months old. So when calves suckle the milk from their mothers, the milk is directed straight to their true stomach, which is designed to use and break down the proteins, amino acids and nutrients from the milk (containing animal proteins!) for the calf's growth and development. The rumen doesn't start developing until the calf starts to consume or "taste test" forages that its mother eats, which is by the time a calf is around a week old.
It is not recommended to bathe a puppy at 3 weeks old as their immune system is still developing and they are not able to regulate their body temperature well. Puppies at this age should still be kept clean by wiping them down with a damp cloth if necessary.
A twelve week old kitten will in no way be able to have kittens of its own. At such an age the kitten is comparable to a young child. Female kittens usually reach sexual maturity around five to seven months old, although they should still never be bred at this age as they are still young and should, ideally, be spayed.
A young bottle-fed calf should be fed every three to four hours. When they get around a week old, it should be increased to 8 to 12 hours between feedings.
Put hip lifters on it to get it to stand up, or put it down if the vet diagnoses the calf as unable to walk again.
Yes, if by "dry teat" you mean completely stop milking her. This way she has (hopefully) enough time to produce colostrum for her calf. But, you should've dried her up 7 weeks ago to lessen the stress on her when she's in the drying up process.
Most antibiotics are administered twice a day. You should speak with a vet and pharmacist to be sure your calf is getting the proper dosage.
On rare occasions, yes.
As long as the cow thinks it is necessary to hide that calf. Usually a cow will hide her calf for a week or two after birth until the calf is strong enough to be up, running and playing with the other calves.
Baby giraffes are called calves. A calf can stand and walk about an hour after it is born, and it begins exploring vegetation within a week.
depends... did you feed it during that first week?
A calf's first teeth often erupts in the womb a week or a few days before birth. These milk teeth are often seen to help a calf nurse.
because your shampoo is not enough for fighting dundruff
It may be humane to put it down. But there are a vast number of reasons why a calf won't get up, and it's best to talk to your veterinarian or get the calf to a large animal vet to diagnose why it won't stand up on its own.
Giver her a dose of oxytocin to give her a kick-start to start lactating. Also give the calf a bottle of colostrum (or tube him if he's too weak to start suckling) immediately after he's born. If the cow is still not lactating, then you need to start bottle-feeding the calf regularly until either the cow starts producing enough milk for the calf, or until you have to wean him from the bottle.