Role of nutrition Flashcards
1
Q
what is the largest input cost in animal production
A
feed
2
Q
direct relation of feeding to diseases
A
deficiency, toxicity
3
Q
indirect relation of feeding to diseases
A
- metabolic and systemic disorders
- immune status and general health
4
Q
food v feed
A
- food: what is actually eaten (humans, non-farm animals)
- feed: what may be mixed to produce animal foods (farm animals)
5
Q
characterizing feeds (2)
A
- origin/major type of feed
- how the feed is processed
6
Q
origin of feeds (4)
A
- plant
- animal
- mineral
- vitamin
7
Q
what is in a plant? (5)
A
- fats/lipids (either extract)
- crude protein
- non-fiber carbohydrate
- fiber
- ash
8
Q
adf
A
acid detergent fiber –> cellulose, lignin
9
Q
ndf
A
neutral detergent fiber –> adf (cellulose, lignin) + hemicellulose
10
Q
when it is best to cut hay
A
early, in vegetative (not reproductive) stage
11
Q
DM % that hay is stored at
A
> 85-90% DM
12
Q
macrominerals (7)
A
Ca, P, K, Mg, Na, S, Cl
13
Q
microminerals (8)
A
Se, Cu, Fe, I, Zn, Mn, Co, Mo
14
Q
“3 rations”
A
- formulated on paper
- actually mixed
- eaten by the animal
(want all 3 to be as similar as possible)
