Calving length of the Jersey?

Answer 1

Your question isn't very exact but the gestation period of a cow is 9 months but like humans they can be a few days early or late. If you aren't sure when your cow was served then you'll tell by her udder swelling with milk and possibly leaking too. If you feel the bones at either side of the tail (the pelvic bones) when the cow is near calving these will move apart in readiness to give birth. The calving can then happen from a few hours to a day or so. Watch for her 'paddling' getting up and down and the water bag(birth sack full of amniotic fluid) appearing.If presentation is correct and depending on how many calvings the cow has had before,the calf should appear within a few hours.

Answer 2

Jersey Cows can start breeding at 15 months and carry the calf for 9 months.