export_feeds and processing Flashcards
Products with more than 18% crude fiber are considered?
dry forages and roughages
cutting above-ground vegetative portion of plants and subsequent curing (drying in field); baled or cubed
hay
residue of a grain crop after removal of the grain; low nutritive value
straw
aerial part of corn or sorghum without the ears, husks, or heads
stover
All forages not cut, or cut and fed fresh are considered:
pasture, range plants; includes feeds cured on the stem
Made by cutting and chopping immature forage followed by storage in an enclosed space that excludes air
silage
Predominate organic acid formed by bacterial fermentation of sugars for silage?
lactic acid
How is silage preserved?
lactic acid preserves silage by lower pH (about 4.6)
T or F: High protein forages, such as alfalfa, will make good silages.
False; the AA are degraded and less desired fermentation products formed (such as butyric acid)
Energy feeds are also called:
energy concentrates
Products less that 18% crude fiber and less than 20% CP with higher digestibility
energy concentrates
grains and grain by-products are examples of:
energy concentrates
T or F: When ensiled, energy feeds are still considered energy feeds.
True
Products containing 20% or more protein
protein concentrates
T or F: Plant and animal origin protein supplements include ensiled products.
True
Oil-seed meals, corn gluten, SBP are examples of:
protein concentrates
Roughage quality affected by:
weed contamination, maturity, cure,
Problems with weed contamination?
reduce nutritive value, contain toxic substances, cause mechanical injury
Effect of maturity on roughage quality?
nutritive value decreases with maturity; stem size, leaf:stem, flowers
Bad odor on cured hays is due to:
mold growth
T or F: Leafiness is generally correlated with nutritive value.
True