Improving starch digestibility in dairy cows: Opportunities with low-starch diets
نویسنده
چکیده
The optimum starch content of diets fed to lactating cows is not well defined, but 24% to 26% starch (DM basis) has been suggested (Staples, 2007). Kaiser and Shaver (2006) and Bucholtz (2006), from surveys of high producing (>13,650 kg RHA) dairy farms in Wisconsin (n = 6) and Michigan (n = 18), respectively, reported starch concentrations of diets fed to lactating cow groups ranging from 25% to 30% (DM basis). With today’s high corn prices, however, there is much interest in feeding diets that are lower in starch content than what has been the norm. The purpose of this paper is to evaluate the potential for using digestible or soluble neutral detergent fiber (NDF) from byproduct feeds to partially replace starch from corn grain in diets fed to lactating dairy cows. Potential modifying effects of starch digestibility on lactation performance by dairy cows fed low starch diets will also be examined.
منابع مشابه
Improving Starch Digestibility in Dairy Cows: Opportunities with Reduced-Starch Diets
The optimum starch content of diets fed to lactating cows is not well defined, but 24% to 26% starch (DM basis) has been suggested (Staples, 2007). Kaiser and Shaver (2006) and Bucholtz (2006), from surveys of high producing (>13,650 kg RHA) dairy farms in Wisconsin (n = 9) and Michigan (n = 18), respectively, reported starch concentrations of diets fed to lactating cow groups ranging from 25% ...
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