Genetic Trends for Long Term Drivers of Dairy Efficiency

Tuesday, June 2 · 10:00 AM EST

The efficiency of dairy production has increased substantially over the last half century. Using a whole-farm modelling system, we will explore genetic and phenotypic trends in cow performance and crop production to evaluate the drivers of long-term productivity. Genetic merit for fat and protein yield, improved nutrition and management, and higher crop yield – partly because of higher atmospheric CO2 – have all enhanced the dairy industry’s ability to feed a growing world population with less land.

Dr. Chad Dechow is a Professor of Dairy Cattle Genetics in the Department of Dairy and Animal Science at The Pennsylvania State University, where he also serves as an undergraduate adviser in dairy and genetics. He earned his Ph.D. in Animal Science from the University of Tennessee, following graduate studies at Penn State and earlier degrees from Cornell University and SUNY Morrisville. 

Dr. Dechow’s research focuses on improving dairy cow health and well-being while maintaining high levels of milk production efficiency. His work explores genetic selection strategies for traits such as body weight stability and disease resistance, the use of farm records in genetic evaluations, and the effectiveness of crossbreeding programs. Through his research, he contributes to advancing sustainable, data-driven approaches to dairy herd management and genetic improvement.