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Table 1 Ingredients and chemical composition of concentrate, fresh cassava roots (FCR) and rice straw (% dry matter basis)

From: Sulfur, fresh cassava root and urea independently enhanced gas production, ruminal characteristics and in vitro degradability

Item 0% Sulfur 1% Sulfur 2% Sulfur FCR Rice straw
  % Urea 4% Urea 2% Urea 4% Urea 2% Urea 4% Urea  
Ingredients, % dry matter (DM)
 Cassava chip 65 63 64 63 63 61   
 Rice bran 10 10 10 10 10 10   
 Soybean meal 5 5 5 5 5 5   
 Palm kernel meal 15 15 15 14 15 15   
 Premixa 1 1 1 1 1 1   
 Sulfur 0 0 1 1 2 2   
 Urea 2 4 2 4 2 4   
 Salt 1 1 1 1 1 1   
 Molasses 1 1 1 1 1 1   
Chemical composition
 Dry matter, % 93.6 93.6 93.6 93.6 93.6 93.6 33.0 94.7
--------------% DM-----------
 Organic matter 92.8 92.8 92.8 92.8 92.7 92.7 98.5 93.3
 Crude protein 12.4 18.1 12.2 18.1 12.5 18.2 2.4 2.7
 NDF 12.0 12.1 12.2 12.1 12.1 12.3 53.0 66.7
 ADF 8.0 8.2 8.2 8.3 8.3 8.3 31.4 43.5
 HCN, mg/kg - - - - - - 104.6 -
  1. a Premix composed of vitamin A: 10,000,000 IU; vitamin E: 70,000 IU; vitamin D: 1,600,000 IU; Fe: 50 g; Zn: 40 g; Mn: 40 g; Co: 0.1 g; Cu: 10 g; Se: 0.1 g; I: 0.5 g. NDF means neutral detergent fiber, ADF means acid detergent fiber, HCN means hydrogen cyanide