The Benefits of Adding Sulfur and Urea to a Concentrate Mixture on the Utilization of Feed, Rumen Fermentation, and Milk Production in Dairy Cows Supplemental Fresh Cassava Root
Table 1
Ingredient and chemical composition of concentrate, cassava roots, and rice straw.
Sulfur-1
Sulfur-2
Fresh cassava root
Rice straw
Urea-1
Urea-2
Urea-1
Urea-2
Ingredients, g/kg DM
Cassava chip
550
540
540
530
Rice bran
130
130
130
130
Soybean meal
230
230
230
230
Palm kernel meal
40
40
40
40
Minerals and vitamin
10
10
10
10
Molasses
10
10
10
10
Salt
10
10
10
10
Sulfur
10
10
20
20
Urea
10
20
10
20
Chemical composition
Dry matter, g/kg
878.0
882.0
877.0
880.0
332.0
946.0
Organic matter, g/kg DM
927.0
925.0
933.0
931.0
985.0
932.0
Crude protein, g/kg DM
163.6
185.3
162.0
186.4
24.0
26.0
NDF, g/kg DM
123.4
124.1
123.0
124.3
530.0
665.0
ADF, g/kg DM
84.0
84.6
84.3
84.4
314.0
434.0
HCN, g/kg DM
0.105
Sulfur-1 and sulfur-2 = sulfur addition into concentrate at 10 g/kg DM and 20 g/kg DM. Urea-1 and urea-2 = urea addition into concentrate at 10 g/kg DM and 20 g/kg DM; DM = dry matter; NDF = neutral detergent fiber; ADF = acid detergent fiber; HCN = hydrogen cyanide.
