Effects of supplementing different feed additives to high-concentrate diets containing potassium carbonate on dairy cow performance.

Meeting the buffer requirements of concentrate-fed dairy cows is a challenging task. We evaluated the effect of supplementing different feed additives to diets containing KCO on feed intake, nutrient digestion and milk production of dairy cows. Eight peak lactation high yielding Holstein cows were used in a replicated 4 × 4 Latin square design with 4 periods of 21 d (14 d for diet adaptation and 7 d for sampling and data collection).