Silage
Does alfalfa hay or alfalfa silage have a higher dry matter value?
alfalfa hay
What does DMI stand for?
Dry matter intake
Carbohydrates
True or false: Hemicellulose is considered a fat.
False - it is a carbohydrate
TRUE or FALSE: Livestock feed can only supply one type of nutrient, there cannot be multiple types of nutrients in one feedstuff.
FALSE!
ex: Cottonseed can provide fats, protein, and carbs (fiber)
How would you describe the face of a well-maintained bunker silo?
Smooth, straight, flat
My forage bunk isn't covered and it rains, does the dry matter content increase or decrease?
Decreases - there is more moisture in the forages now
Grass hay is a source of fiber or starch?
Fiber
What nutrient has the highest amount of energy?
Fats / lipids
What are 2 functions of water in the body.
Biochemical reactions
Transport of other nutrients
What living thing is needed for the fermentation process to occur?
Bacteria
Why is it important to know the dry matter content of the feed?
To understand how much energy the cow is eating
What is the pimary energy source for livestock?
carbohydrates (starch and fiber)
Name the 2 classifications of lipids (fats)?
Saturated and unsaturated
Name 2 feeds that a good sources of protein for livestock.
Soybean meal, canola meal, blood meal, etc
What element must be absent for effective fermentation of silage?
Oxygen
What nutrient are we NOT accounting for when talking about dry matter?
water
I just got finished drying my corn silage to determine dry matter content.
TRUE or FALSE: This sample no longer contains minerals due to the drying process.
FALSE
What is one livestock feed that is considered a fat? -Be specific, no general categories
Oilseeds (soybean, cottonseed)
What are the building blocks of protein?
Amino acids
Provide 2 reasons why is it important to have a flat bunker face?
- minimizes oxygen exposure/prevents spoilage
- helps preserve nutrients
- safety (we don't want overhangs)
- better control over how much silage is removed at once
Why should I care about as-fed feed?
This weight represents what the animal is getting - we deliver their feed in terms of as fed weight
Name all 6 classifications of nutrients.
- water
- carbohydrates
- lipids / fats
- protein
- minerals
- vitamins
What happens if there is too much lignin in the animal's diet?
Reduces digestibility = reduces the amount of nutrients the animal can utilize
Name 2 macrominerals.
Calcium (Ca), Phosphorus (P), Potassium (K), Sodium (Na), Sulfur (S), Chloride (Cl), Magnesium (Mg)