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.
Jake Charleston from Specialty Risk Insurance Agency recapped an Oklahoma auctioneer contest and recent industry events, showing how stakeholder feedback helps insurers gauge market conditions and risk management needs.
April 17, 2026 04:20 PM
·
Cattle-on-Feed is down on the year in the USDA’s April report, with lower placements and marketings signaling tighter feedlot activity.
April 17, 2026 03:32 PM
·
Groundbreaking Marks Next Major Milestone in Strengthening U.S. New World Screwworm Preparedness
A new partnership with the Montana Beef Council is bringing protein-packed refuel stations to high school sports tournaments across the state.
April 17, 2026 12:32 PM
·
Strong ethanol output supports corn demand despite export weakness.
April 17, 2026 10:00 AM
·
Strong crush margins — now at multi-year highs — are encouraging processors to expand production.
April 17, 2026 09:00 AM
·
