Dairy cows produce more milk for heifers than for baby bulls, according to new research from Kansas State University and Harvard University.
Researchers studied lactation records for more than one million dairy cattle across the country.
Their findings contradicted evolutionary biology theories that predicted bias was in favor of sons. The cows actually produced more milk for their female offspring.
“Daughters seemed to have the most dramatic effect on the initial development of the mammary gland because the bias against sons was greatest in the first lactation,” said K-State Department of Animal Sciences and Industry associate professor Barry Bradford.
The study also found that the sex of the first baby might determine the amount of milk produced for the following children.
The results were available in the scientific journal PLOS One.
RanchHERs Penny Kasun and Dani Jeanne Lawrence of 7-Up Ranch in Prescott, Arizona, joined us Monday on Market Day Report to discuss the next all-new episode of the show.
November 25, 2024 02:06 PM
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November 22, 2024 10:46 AM
Janie ventures to the desert in Prescott, Arizona for cattle branding at the 7UP ranch with Penny Kasun & Dani Jeanne Lawrence.
November 20, 2024 11:29 AM
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Janie camps out on the historic YP Ranch with the operation’s matriarch, RanchHER Renee Jackson, her family, and a talented crew of cowboys as they wrap up part of branding season on their remote and expansive operation located on the state line of Nevada and Idaho.
November 18, 2024 05:28 PM
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November 14, 2024 09:28 AM
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Janie camps out at the remote State Line of Nevada & Idaho with Renee Jackson, wrapping up branding season at the historic YP ranch.
November 13, 2024 11:20 AM
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November 08, 2024 12:25 PM
November 08, 2024 10:54 AM
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Janie spends a day in the life with Pilar Martinez,and helps with her variety of chores on the massive Centennial Ranch in Dillon, Montana.
November 06, 2024 02:10 PM
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