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Table 2 Dry matter (DM) and crude protein (CP) degradation characteristics of soybean meal and dried distillers grains co-products1, 2

From: In situ ruminal degradation characteristics of dry matter and crude protein from dried corn, high-protein corn, and wheat distillers grains

Item Soybean meal Wheat DDGS Corn DDGS HP-DDGS SE P value
DM (%) 92.4 86.5 86.5 90.0 0.1
DM fractions (% of DM)
 53-μm filterable and soluble A fraction 28.4b 37.2a 28.9b 13.6c 0.6 <0.001
 Degradable B fraction 69.0a 49.5c 51.0c 55.3b 1.4 <0.001
 Undegradable C fraction 2.6d 13.3c 20.1b 30.9a 1.2 <0.001
K dB3 (% h−1) 13.3a 9.1b 5.3c 5.0c 1.0 <0.001
CP (%) 52.2 38.1 33.3 38.8 0.4
CP fractions (% of CP)
 53-μm filterable and soluble A fraction 8.9c 26.5a 19.7b 9.0c 1.9 <0.001
 Degradable B fraction 87.2a 67.8b 50.6bc 49.8c 4.0 0.001
 Undegradable C fraction 3.9c 4.7c 29.7b 41.2a 3.3 <0.001
K dB4 (% h−1) 17.6a 11.6b 4.9c 3.9c 0.6 <0.001
  1. 1 DDGS distillers dried grains with solubles, HP-DDGS high-protein corn DDGS
  2. 2Means of 12 observations
  3. 3 K dB = degradation rate of degradable B fraction
  4. a−dMeans with different superscripts within the same row differ (P < 0.05)