Fig. 1
From: A comparative study of the intestinal digestive characteristics of different feeds for Holstein cows

Sixteen-hour degradation rate of feed ingredients CP in the rumen. SBM, soybean mean; DDGS, distillers dried grains with soluble; SFM, sunflower meal; CS, corn stalk; WCS, whole-plant corn silage; CH, Chinese wildrye; CW, Chinese wildrye; ASS, alfalfa mowed at squaring stage; AFS, full-bloom stage; APS, pod stage