Shared Flashcard Set

Details

ANSC 318 Feeds and Feeding
Exam #2 Spring 2011 TAMU
70
Agriculture
Undergraduate 4
03/28/2011

Additional Agriculture Flashcards

 


 

Cards

Term
Class: Cut & dried forages/roughages.
How much NDF? Energy content?
Definition
Greater than 35% NDF, Low in energy
Term
Carbonaceous rouchages (less than 10% CP) Examples?
Definition
Straw
Stalks
Mature Grass
Term
Proteinaceous Roughages (more than 10% NDF) Examples?
Definition
Legumes
Immature grasses
Term
Forbs
Definition
Primarily broadleaf, NONWOODY plants
Term
Browse
Definition
WOODY plants consumd in some degree by ruminants (esp sheep, deer, and goats)
Term
Carbonaceous Silages
Definition
corn silage
grass silage (WHEAT, OATS BARLEY)
Term
Proteinaceous Silages
Definition
Alfalfa Silage - haylage
Clover
Term
Carbonaceous Concentrates
NDF? CP? Energy?
Definition
Less than 35% NDF
HIGH in energy content
LESS than 20% CP
Term
Classes:
Carbonaceous Concentrates
Definition
Cereal Grains = CORN, WHEAT, OATS, BARLEY & RYE

SORGHUM - MILO, KAFIR

GRAN BYPRODUCTS - BRAN, MIDDLINGS, HOMINEY

MISC FEEDS - ANIMAL FAT, BAKERY BYPRODUCTS
Term
Classes:
Proteinaceous Concentrates.
NDF? Energy? CP?
Definition
LESS than %35 NDF
MORE than 20% CP
FAIR to HIGH ENERGY CONTENT
Term
Oil-Seed Protein feeds
Definition
SBM
CSM
Linseed Meal
Peanut Meal
Term
Proteinaceous Concentrates
Types
Definition
Grain Byprods
- Corn Gluten Meal
-brewer's dried grains
-wheat germ meal

Animal Protein
- blood meal
-fish meal
-meat meal
-dried whey (cheese)
Term
Feed Additives
(Species based determination)
Definition
Antibiotics
Buffers
Antioxidants
Chemical Preservatives
Pellet binding agents
Probiotics
Term
Calcium Content in:

Forages?
Grains?
Definition
Ca in FORAGES=HIGH GRAINs=LOW
Term
Phosphorous in:
Forages?
Grains?
Definition
P in FORAGES=LOW GRAINS=HIGH
Term
C3 plants are what SEASON?
C4 plants are what SEASON?
Which of the two are more efficient @ photosynthesis?
Definition
C3= cool season
C4= warm season
C4 are more efficient than C3 plants @ photosynthesis.
Term
CR - Cool Season grasses
(both ann and per)
Definition
Timothy, Kentucky bg, Smooth brg, Orchardg, Tall fescue, pRyegrass, Wheatg, Reed Canaryg
Rygrass, wheat, oats, barley, triticale
Term
CR - WARM season grasses
(both per and ann)
Definition
Big bluestem, Indiang, Switchg, Side-oats gramma, buffalog, Loveg, Elephantg, Common bermg, Coastal bermg, Dallisgrass, Bahiag, Kleing, Limpog, Johnsong.
Forage sorghum, grain sorghum, Crabg, Pearl Millet, Sorghum-sudan hybrids, Sudangrass.
Term
CR-Silages
Definition
Corn Silage - whole plant
Sorgum silage - whole plant
Corn stover silage - whole plant
Sorghum stover silage - whole plant
Grass silages
Milo silage
Stover silage
Term
MISC - CarbRoug
Definition
Straws (oat, wheat, barley)
Hulls (oat, peanut, SB)
Term
ProtRough - Cool Season Legumes
(both ann and per)
Definition
Alfalfa
Red clover
White Clover
Alsike clover
Birdsfoot trefoil
Arrowleaf clover
crimson clover
subterranean clover
vetch
winter pea
Term
Proteinaceous Roughage
Definition
MORE than 35% NDF
LOW NE
MORE than 10% CP
HIGH Ca LOW P
Term
Carbonaceous Roughages
Definition
MORE than 35% NDF
LOW NE
LESS than 10% CP
HIGH in Ca LOW in P
Term
Proteinaceous Concentrates
Definition
LESS than 35% NDF
HIGH NE
MORE than 20% CP
LOW Ca High P
Term
Carbonaceous Concentrates
Definition
LESS than 35% NDF
HIGH in NE
LESS than 10% CP
LOW Ca HIGH P
Term
Prot Rough
Warm Season Legumes
Definition
Peanut
Kudzu
Lespedeza
Cowpea
Alyceclover
Term
As Moisture level at harvest increases, FIELD and Harvest LOSSES.....
Definition
INCREASE
Term
As MOISTURE level at Harvest INCREASES, Storage LOSSES....
Definition
INCREASE
Term
6 Types of pasture grazing Systems
CRFSLC
Definition
CONTINUOUS - lowest utilization
ROTATIONAL
FIRST-LAST Rotational
STRIP
LIMIT
CREEP
Term
Optimum Moisture content for successful storage? HAY
Definition
15%
Term
HAYmaking Systems
4
Definition
Loose hay stacks
Chopped Hay (dry)
Baled or Stacked
Pellets or cube
Term
Metabolic Hay Losses
Definition
Respiration continues until moisture content reaches 35% - SUGAR and STARCHES lost
Term
Weather Hay Losses
Definition
rainfall between cutting/bailing
3 issues, 5-15-60% losses
Term
Mechanical Hay Losses
Definition
leaf shattering= 2-5% grass hay
3-35% alfalfa hay
15-18% is ideal
Term
Strategies to REDUCE FIELD LOSS
Definition
1. Use mower conditioner (decrease dry time)
2. Stems dry faster than leaves- kink stem to dry faster
3. Minimize potential weather damage
4. Preservatives during baling - PROPIONIC ACID
5. Use DRYING AGENTS - at time of cutting - POTASSIUM CARBONATE
Term
Methods to REDUCE STORAGE Loss
Definition
1.Store hay in Barn or Under Roof
2. Bale w/plastic wrap
3. Cover bales with tarp
**Storage losses are huge for hay on the ground w/no cover-DUH
Term
Use Silages compared to Hay??
Advantages and Disadvantages
Definition
Silage Advantages= Preserves higher prop of nutrients, high quality, little wastage, not as dependent on good weather, flexibility in harvesting.

Disadvantages: inflexibility in marketing, expensive equipment (more H2O to handle), reduces Ogan matter back in soil.
Term
Types of SILOS
6 of them
Definition
1.Air-tight Upright-LOWEST LOSSES, Most Expensive
2.Stave Upright
3.Plastic Airtight
4.Horizontal trench
5.Horizontal AboveGround Bunker
6.Horizontal Dirt-trench-MOST LOSSES, Least Expensive
Term
Acids produced during ENSILING
Definition
Acetic
Lactic
Butyric
Propionic
Formic
Term
Review Pg 18
Definition
Term
Losses in Silage Making
Definition
1. Field Losses (less than hay)
2. Ensiling Losses(respiration and Fermentation)
3. Spoilage
4. Seepage
Term
Good Silage - DM% ???

pH??

Years lasting?

Maturity at Harvest??
Definition
25-35% DM
pH 3.5-4.5
Lasts 10-15 years
Maturity is critical
Term
Corn Silage Milk Line = pg 78
Definition
Term
Nutritional Quality of FORAGES
Highest to Lowest
Affects of Maturity
Lowest to Highest
Definition
1. Legumes=Highest nutr value, lowest maturity affects
2. Cool-season grasses interm, interm maturity affects
3. warm-season grasses lowest, highest maturity affects
4. annual grasses higher than perennials
Term
Which feedstuff is most likely deficient in Ca for beef cattle?
Definition
Grain= low Ca high P
Hay = high Ca low P
not hay, not silage= GRAIN IS!
Term
Heifers require ...... NEg than bulls/steers?

Heifers require ....... CP than bulls/steers?
Definition
Heifers require MORE energy & MORE CP!!
Term
Macromineral most likely deficient for cattle grazing Bahiagrass pasture??
Definition
Phosphorous
Term
Maintenance is physiological function of beef that requires the ....... amount/fraction of total dietary energy??
Definition
LARGEST, NEEDS MOST OF DIET FOR MAINTENANCE
Term
BCS at calving should be ....... [1 to 9 scale]
Definition
5 to 6
Term
Lower hay moisture at Harvest = increased loss!!
Definition
higher hay moisture at harvest = decreased loss!!!
Term
Well preserved silage contains high levels of which Acids???
Definition
Lactic

Bad silage will have Butyric
Term
Types of Grain Processing
3 main
Definition
Dry Rolling-crushed, 2 steel rollers, MOST COMMON
Steam Flaking-30 minute steam, incr starch avail.
Hammer Milling- hammered and ground
Term
Grass Tetany
(Wheat Pasture Poisoning & Hypomagnesemia)
Definition
staggers, twitches, LOW Mg LEVELS IN MUSCLE, die from muscle convulsions.
Pregnant, Lactating, & OLDER cows susceptible.
Can feed MgOxide 2/oz/day
** Problem is low Mg in muscle, SOOO Treat to get Mg levels up***
Term
Pulmonary emphysemia
(FOG Fever or Lungers)
Definition
Lung involvement, Cows Die from lack of oxygen, Calves not Susceptible.
Lush grass**
1-2 weeks after putting cattle on pasture.
Treatment= RUMENSIN
Term
Dallisgrass Poisoning or Bermudagrass Tremors
Definition
caused by Ergot (fungus)
Tall bermuda grass pastures
tremors
staggers
Term
Nitrate Toxicity
Definition
Nitrate Concentrations elevated in forage not in concentrates
Metab by anaerobic microbes
Nitrates reduced to ammonia
HORSES and PIGS ingesting forages with elevated levels of NO3 will not be affected because they lack microbial fermentation to reduce nitrate to nitrite.
Term
Factors causing Nitrate levels to be elevated: (Weather, fertilizer, levels in soil)
Definition
Drought
frost damage
shading
herbicide treatment
high nitrate in soil
Term
Various levels of Nitrate that is safe and unsafe to feed!!.....
Definition
o-1% nitrate is safe

acidosis can occur as well.
1-1.5% can be fed limited amts

1.5 or greater% UNSAFE NOT OK
Term
Prussic acid poisoning
(cyanogenic compounds)
Definition
cattle can die 1 to 2 minutes after grazing plants w/ high levels of prussic acid. Haygrazer,Sudangrass, Johnson grass, Sudex.
Term
Fescue Grass Toxicity
"Summer Slump"
Definition
Alkaloids, dry rot/gangrene on ears, tails, hooves.
Poor performance
Delayed parturition
Red bag syndrome-horses
Term
Energy is needed by the cow for...
Definition
Maintenance
pregnancy
lactation
growth
Term
Energy for cow herd....
Definition
70%
(of that 70%= 73% of it is for maint, 20% is for lactation, 7% energy for fetal growth)
Term
Energy for cow maintenance= %?
Definition
51%
Term
Metabolic body size formula
NEm requirements
Definition
0.077 x BW raised to 0.75 power
Term
Bos indicus, Bos Taurus, dairy breeds NEm requirements
Definition
indicus- lowest
taurus- interim
dairy breeds- highest
Term
Minerals are important for:
Definition
bone development, appetite, nervous system, fertility, disease resistence, hair coat, skin&hoof health, milk production, and muscle development.
Term
Macrominerals are:
Definition
*Phosphorous
*Magnesium
*Sulfur
Calcium
Potassium
Sodium
Chlorine
Term
Microminerals are:
Definition
*Copper
*Zinc
Manganese
*Selenium
Cobalt
Iodine
Iron
Term
Zinc and Selenium are important for....
Definition
Trace minerals
affect fertility
enhance immune system and COLOSTRUM
Term
Macro/Micromineral supplementation
different FREE CHOICE ways to supplement
4 ways
Definition
Free Choice:
mineral/salt MEAL
mineral/salt BLOCK
mineral-salt LIQUID
limit feed in a protein energy supplment
Supporting users have an ad free experience!