Influence of reducing starch in the diets with similar protein and energy contents on lactation performance, ruminal fermentation, digestibility, behaviour and blood metabolites in primiparous and multiparous dairy cows.

Overall, regardless of the benefit derived from feeding a reduced-starch diet by partially replacing grains with sugar beet pulp in the diets on nutrient digestibility, a reduced-starch diet may be used more efficiently in PP than in MP cows but at expense of body reserves (i.e. BFT) loses.