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Table 2 Effects of supplementation with protein in different sites on voluntary intake in cattle fed tropical forage

From: Intake, digestibility and nitrogen utilization in cattle fed tropical forage and supplemented with protein in the rumen, abomasum, or both

  Supplementation sited   
Itemc Control R A R + A SEM P-value
  kg/d   
DM 5.05 5.60 5.13 5.12 0.48 0.229
DMF 5.05 5.35 4.88 4.87 0.48 0.307
OM 4.72 5.25 4.81 4.80 0.45 0.226
CP 0.403b 0.648a 0.611a 0.613a 0.040 <0.001
NDFap 3.65 3.87 3.54 3.54 0.33 0.348
iNDF 1.93 2.05 1.87 1.84 0.19 0.222
DOM 2.22b 2.60a 2.31b 2.40ab 0.22 0.060
DNDF) 1.94 2.01 1.84 1.87 0.17 0.362
  g/kg body weight   
DM 20.4 22.4 20.8 20.7 1.2 0.263
OM 19.1 21.0 19.5 19.4 1.1 0.260
NDFap 14.8 15.5 14.3 14.3 0.8 0.337
iNDF 7.8 8.2 7.6 7.4 0.5 0.273
  1. a, bwithin a row, means without a common superscript differ (P < 0.10)
  2. c DM dry matter; DMF dry matter from forage; OM organic matter; CP crude protein; NDFap neutral detergent fiber assayed with a heat-stable alpha-amylase and corrected for contaminant ash and protein; iNDF indigestible neutral detergent fiber; DOM digested organic matter; DNDF digested neutral detergent fiber
  3. dControl = without supplementation; R = ruminal supplementation; A = abomasal supplementation