Case means form or variation.. Think of having a case of the flu: you are still yourself, but you are in a different form of yourself, so to speak, and you can only act in certain ways as a result of that state. Most Latin nouns, pronouns, and adjectives appear only in a limited number of different forms. For example, for the Latin word Ã¢la (wing), you will generally see only these forms: Ã¢la / Ã¢lae / Ã¢lam / Ã¢lÃ¢ / Ã¢lÃ¢rum / Ã¢lÃ®s / Ã¢lÃ¢s . Latin has several different boxes of endings.
And, cows that lose weight and body condition after calving have longer post-partum intervals. So with all that in mind, the postpartum interval, if conditions are ideal, for beef cows is between 50 and 60 days for an average of 55 days. First-calvers will be at least 10 days longer.
How long it takes for a cow to give birth really depends on her body condition, her experience, how big the calf is inside her, environmental conditions, and whether the calf is presenting normally or not. As a result there really is no set-in-stone time it takes for a cow to give birth. For experienced cows, it's only a matter of 5 to 6 hours until the calf arrives. For a heifer, it can be a few to a number of hours longer. See the related question below for a similar answer. If, by any chance, you are asking how long a cow is pregnant in days, the average is around 285 days long. Please see the related question on the length of gestation below for a more detailed answer. Karin L.