Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ANSC 325 - Ruminant Nutrition > Nutrients > Flashcards

Nutrients Flashcards

1
Q

What are organic compounds in feed?

A

compound containing carbon usually bonded to hydrogen
(ie. methane, ethanol, carbohydrates, lipids)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are inorganic compounds in feeds?

A

compounds without carbon
(ie. CO2, salt, minerals/elements)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the main components of feed desribed by proximate analysis?

A
  1. Moisture
  2. Ash
  3. Crude protein
  4. NDF and ADF
  5. Non-fiber carbohydrate
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How much of an animals mass is water?

A

71-73%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the difference between as-fed and dry matter?

A

As-fed = feed nutrient content with water included
DM = feed nutrient content with water removed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Why is feed nutrient content reported on a DM basis?

A

better comparison between feeds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is ash a measure of?

A

estimate of inorganic mineals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How is ash determined?

A

heat feed at 600C for 6hrs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How is organic matter determined?

A

Organic matter = 100-ash

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How much nitrogen is in crude protein?

A

16%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How is crude protein determined?

A

Kjeldahl method or total combustion method

Kjedahl method involves sulfuric acid, NaOH, and dilute base

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Saturated vs unsaturated fat?

A

Saturated: no double bonds
Unsaturated: double bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Fats vs oils

A

Fats: solid, contain saturated FA
Oils: liquid, contain unsaturated FA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How is crude fat determine?

A

Ether extract

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are structural carbohydrates and what are 2 examples?

A

Responsible for structure of plant, in cell walls
Cellulose
Hemicellulose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are non-structural carbohydrates and what are 3 examples?

A

Cell content, store energy of cells
Sugar, Starch, Pectin

17
Q

What is NDF and how is it determined?

A

measures fiber content (lignin, cellulose, hemicellulose)
soak in neutral detergent

18
Q

What is ADF and how is it determined?

A

Measures least digestible parts of plant (lignin, cellulose)
Soak in acid detergent

19
Q

What is peNDF and how is it determined?

A

physically effective fiber, has to be 4 mm in length using a particle separator

20
Q

Why is peNDF important?

A

scratch factor for pili

21
Q

What is the most energy dense component of feed? Least energy dense?

A

Fatty acids - most
Carbohydrates - least

22
Q

What is NIR? What are its strengths and weaknesses?

A

Near infrared spectroscopy, measures organic compounds
Less accurate
Quick, cheap

23
Q

What are the major resources for animal requirements?

A

National Requirements

ANSC 325 - Ruminant Nutrition (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions