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.
Jack Daniel’s will end its Cow Feeder Program, which served around 100 livestock operations near the distillery, and redirect spent grains to its anaerobic digester.
October 06, 2025 12:33 PM
·
“A government shutdown impacts all Americans and has serious consequences, including for farmers. It just adds additional uncertainty, disrupts critical services.”
October 06, 2025 11:23 AM
·
Agricultural exports continue to be a key contributor to rural employment. However, rural businesses still struggle to fill numerous job openings.
October 06, 2025 10:46 AM
·
Consumer demand for regional food systems is strong, but the challenge lies in scaling production and infrastructure to meet that growing need.
October 03, 2025 02:57 PM
·
Dave Kestel, a farmer from Will County and member of the Illinois Farm Bureau, joins us to share a boots-on-the-ground update on the 2025 corn harvest.
October 03, 2025 02:30 PM
·
Approximately 42,000 birds were affected in the outbreak, officials said.
October 03, 2025 10:50 AM
·
