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ZUPPAN QUADRUPLETS:
Cow 5026 had quadruplets on December 6, 2011. All four heifer calves were born alive, healthy and at term without assistance. This is the cow’s third time calving- the first two times she had single calves. The cow did not have any hormones before or after getting pregnant, and was artificially inseminated with non-sexed semen from a natural heat. She likely released three oocytes from her ovaries which were fertilized, one of which then split, producing two calves out of the four which are identical genetically.

Hair samples were taken from the cow and all four calves and sent to the Veterinary Genetics Lab at UC Davis and were confirmed to be all related. The odds are amazing. According to Veterinary Obstetrics and Genital Diseases (Roberts, 1971), the odds of a cow having quadruplets are 1:700,000. The odds of having all four calves born alive are 1:11.2 million, and the odds of all four being born alive and all one sex are 1:179.2 million! Congratulations Zuppan Dairy and thanks to Frank Robinson (Bovine Beautician) for all of his expertise in bovine photography!

UPDATE: On April 4, 2012, the cow was diagnosed 47 days pregnant again on her first service using no artificial hormones. She is an amazing cow!

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