Of two experiments of banana meal as an engredient of concentrate for lactating cows, one was a field trial in the Machachi Valley near Quito, Ecuador, which compared concentrates containing 75% wheat bran, 71% corn, or 71% banana meal. The three concentrates were fed to three groups of 10 Holstein cows for 112 days. The cows grazed rye grass and white clover pasture 20 h per day. Daily milk production averaged 14.3, 17.6, and 15.9 kg per cow for the respective concentrates. The other experiment at Michigan State University compared a concentrate containing 40% banana meal with a herd concentrate containing mostly corn. Cows were fed banana meal concentrate and 10 cows the control. Differences between concentrates were not significant for milk production, percent milk fat and protein, glucose and urea of plasma, or for rumen pH and volatile fatty acids. Banana meal is an acceptable substitute for corn or wheat bran in concentrates for lactating cows.