Week 2

High-Energy Feedstuffs

Barley

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• In U.S., third most important cereal grain
• Estimated production – 249 million bushels
• Growing conditions
• Cool, dry climates
• Short growing seasons
• Relatively important feedstuff in PNW
• Figure 4.11 – Field of barley
• Use in brewing industry
• By-products
• Hulls
• Brewer’s grain
• Primary use as feedstuff
• Hull feed barley
• Figure 4.12 -  Barley grain on the head



• Figure 4.13 – Barley grain



• Estimated average yield – 58.2 bu/acre
• Coarse grain
• Cereal grains with relatively low energy values
• Nutritional value
• Table 4.4 – Average nutrient composition of barley

Table 4.4 - Average Nutrient Composition of Barley

Nutrient	Average Composition, %
Crude protein	13.3
Ether extract	2.0
Crude fiber	6.3
Ash	2.7
NFE	75.7
Starch	64.6

• Energy source
• Significantly lower than corn and milo
• Low starch, high fiber, beta-glucans
• Beta-glucans
• Water soluble CHO
• Indigestible by mammalian enzymes
• Digestible by microbial enzymes
• Protein source
• Higher content than corn
• Higher lysine, tryptophan, methionine, and cystine than corn
• Content similar to wheat
• Feeding livestock
• Processed to improve nutritional value
• Palatable for ruminants and horses; lower for monogastrics
• Cattle, horses, and swine
• Fed in combination with other grains for production and health reasons
• Poultry
• Amount fed limited