That depends on the breed. Since this is in the Jersey cattle category, the weight of a three-month old Jersey calf would be around 150 to 200 lbs at the most.
Around 300 lbs.
This all depends on the breed. Three-month-old calves of different breeding will weigh more or less than the other. For instance, a Charolais calf will weigh more than a Jersey calf, or a miniature Angus calf will weigh less than an Angus calf (one that is normal in size and proportion).
Depends on the breed and sex of the calf. Most calves average around 700 to 800 lbs at this age, plus or minus.
It all depends on the breed, the genetics of that calf, the health of the calf, and the quality/type of feed you're feeding it. Thus it could take anywhere from three months to eight to get a calf to be at that target weight.
It doesn't really matter, as it depends on when the calf was born and when you are able to go out and band the calf.
That all depends on what breed that beef calf is. A 1 month old beef calf can weigh anywhere from 80 lbs to over 200 lbs or more.
Around 300 lbs.
This all depends on the breed. Three-month-old calves of different breeding will weigh more or less than the other. For instance, a Charolais calf will weigh more than a Jersey calf, or a miniature Angus calf will weigh less than an Angus calf (one that is normal in size and proportion).
Usually around 200 lbs.
Depends on the breed and sex of the calf. Most calves average around 700 to 800 lbs at this age, plus or minus.
It all depends on the breed, the genetics of that calf, the health of the calf, and the quality/type of feed you're feeding it. Thus it could take anywhere from three months to eight to get a calf to be at that target weight.
It doesn't really matter, as it depends on when the calf was born and when you are able to go out and band the calf.
80-100# is a reasonable range for an Ayrshire calf.
Now, why would you want to take away a cow's calf after one month? Calves still need their mommas until they're around 3 months of age, and the cows do get very attached to their calves even after one month, so yes it would "hurt" the cow to take away her calf after only one month, not to mention the calf as well.
That all depends on the gender of that calf. Bull or heifer or steer?
That all depends on the age and weight of the calf. Typically a calf should recieve 10% of its body weight in milk replacer per day.
My first thought would be a urinary tract infection; a veterinarian would be able to assess this and provide treatment.