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AN242: Effect of Sexed Semen on Dairy Heifer Supply from 2006 to 2012

Figure 4. Number of extra heifer calves in the national population (heifers and cows) that resulted from inseminations (conceptions) with sexed semen from January 2006 to December 2009. These heifer calves are born (births) 9 months after conception and enter herds 24 months after they are born (entering).