Are smaller cows more efficient? They need less feed and wean calves that are a higher percentage of their body weight. In contrast, large cows need more feed, more pasture, and wean calves that are smaller relative to cow size. But what is the right size cow for your operation?

Relevant Links: 

Big Cows and Big Questions? (article)

Record Keeping for Tracking Genetic Improvements (e-course)

Genes Behind the Scenes (article)