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.
American Farm Bureau Federation (AFBF) economist Danny Munch joined us on Thursday’s Market Day Report to break down the scope of the U.S. Christmas Tree industry and what growers are up against.
December 11, 2025 01:53 PM
·
Rising beef supplies and lower cattle prices, weaker hog markets, and softening dairy prices will shape producer margins heading into 2026.
December 11, 2025 01:32 PM
·
Outdated reporting thresholds reduce cash-market visibility and increase the urgency of comprehensive Mandatory Price Reporting reform.
December 10, 2025 07:00 PM
·
Rancher David Kroa of
One Man Ranch joins us to share the story of his remarkable Shorthorn cow, Trish, who is beating the odds.
December 10, 2025 12:11 PM
·
Rural employers are slightly more optimistic, but labor shortages and renewed price pressures continue to limit growth across farm country according to a
December 10, 2025 11:56 AM
·
December 10, 2025 11:03 AM
Stable U.S. fundamentals continue for major crops, but global adjustments in corn, soybeans, wheat, and cotton may influence early-2026 pricing.
December 10, 2025 10:31 AM
·
Tariff relief and new trade agreements may temper food costs by reducing import costs.
December 09, 2025 11:55 AM
·
Grain farms still have strong balance sheets, but another stretch of low profits will force hard cost cuts, especially on high-rent, highly leveraged operations.
December 09, 2025 11:41 AM
·
