Breeding better calves faster
Bovine sex has suffered for the sake of farmers' profits ever since artificial insemination replaced the old roll in the hay. The test-tube method allows the selection of genetically superior bulls, but there has always been a little problem with the cows. Even the best breeders normally drop only one calf a year. Now Mother Nature has been beaten at her own game by a new method that enables ranchers and farmers to turn the best of their cows into instant supermoms, capable of producing whole herds of exceptionally meaty or big-milking offspring.
The method is embryo transfer.