Is Gestation Length Shorter for Fall Calving Cows?

Is Gestation Length Shorter for Fall Calving Cows?

Dr. Glenn Selk, Extension Cattle Specialist, Oklahoma State University

Oklahoma State University researchers used five years of data from the North Lake Carl Blackwell range to answer the question of gestation length differences by seasons. Records of 414 gestations and live births (242 spring and 172 fall) from cows of five crossbred cow groups were analyzed for differences in gestation length and birth weight.  The cows ranged in age from 4 to 7 years old.  Cows were bred artificially to either Salers or Limousin bulls.


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