Feedstuffs ID Flashcards
(94 cards)
Any ration component that provides same useful function (provide a nutrient OR modify diet characteristics)
Feedstuffs
IFN
International Feed Numbers
IFN 1
Dry Roughages (Hay, Straw, Hulls)
IFN 2
Fresh Roughages (grazes plants, fresh green chop, food crop residues)
IFN 3
Ensiled Roughages (Corn silage, other various ensiled materials)
IFN 4
High Energy Concentrates (Cereal grains, beet or citrus pulp, fats, sugary products)
IFN 5
Protein Sources (animal or plant, legume seeds, NPN, distillers by-products)
IFN 6
Minerals
IFN 7
Vitamins
IFN 8
Non-Nutritive Additives (flavoring, medication, color)
feedstuffs high in structural fiber (cellulose)
Roughage
result of storing wet feedstuffs in anaerobic conditions resulting in fermentation
Silage
herbage that is cut and chopped in the field then fed fresh to livestock
Green Chop
dehydration green forage
hay
typically an energy can refer to “protein concentrate”
concentrate
- low in energy because of high cell wall count
- high Ca and trace mineral content and fat soulable vitamins
- palatable to ruminants
- nutritive value extremely variable
- limited inclusion in beef finishing diets and swine rations because it’s low energy
- present in dairy rations to maintain health rumen and milk fat content
Roughages
greater than or equal to 18% Crude Feed on a Dry Matter basis
all forages and roughages
Two Types of Roughages
Proteinaceous Roughages
Carbonaceous Roughages
Proteinaceous Roughages
greater than 10% crude protein (legmus hay; alfalfa)
Carbonaceous Roughages
less than 10% crude protein (non legmus and low quality grasses)
IFN 1 Dry Forages/Roughages
- cut, cured, and “hayed”
- we do this to preserve for winter months
- legume hay, grass hays, straws
IFN 2 Pastures and Rangelands
- all forage not cut or fed fresh
- major feed for beef, sheep, goats, horses
- can be most profitable because we’re not growing/harvesting
- hard to determine consumption levels
Pasture Managment
- Durable for weather and foot traffic
- long growth season
- plant variety (greater yields, better nutrition)
- moving/fertilizing
- proper stocking rate
Stocking Rate
how many animals per pasture to feed on the fresh roughages