Gestation Length: Calves Arrive Sooner Than They Used To
Dr. Justin Rhinehart
University of Tennessee
What is the gestation length of a cow? This question usually gets the answer of “it averages 283 days.” A better answer is “it can range from about 265 to as much as 295 days.” For breeds that have focused on low birthweight genetics for several generations, the average gestation length has shortened. But, there are several other factors that can shorten or lengthen gestation notwithstanding genetics.