Feed Additives Flashcards

1
Q

if a feed ingredient is not a ___________ (7 things) then by definition it is a feed additive

A
  • hay
  • silage
  • pasture (fresh forage)
  • energy feed
  • protein feed
  • vitamin supplement
  • mineral supplement
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

why does the term “feed additive” have a negative conotation

A

“no preservatives or additives” is used in advertising to suggest that feed additives are unhealthy and unnatural and that additives are either antibiotics or homones

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

example of feed additives

A
buffers and neutralizers
antioxidants
preservatives
pellet binding agents
hormones
flavoring agents
probiotics
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Rumen additive compounds fed specifically to:

A
  • alter rumen fermentation

- increase feed efficiency

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

definiteion of ionophores

A

special class of antibiotic that causes affected bacterial cell walls to become permeable to cations (K, Na)

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

buffers and neutralizers

A

compounds added to reduce fluctuation in rumen pH

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

antioxidants

A

compounds added to prevent rancidity and oxidation of fats, particularly unsaturated fats

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

chemical preservatives

A

compounds added to prevent mold and bacterial degredation of feedstuffs

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

humectants

A

compounds added to hold moisture

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

pellet binding/flow agents

A

materials added to improve the pelleting characteristics of mixed feeds

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

probiotics

A

microbial cultures added to feed to stimulate the GI environment and promote healthy intestinal flora

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

coloring agents

A

synthetic or natural compounds used to alter the color of the feed or animal skin

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

feed flavors

A

natural or synthetic compounds added to alter the taste and/or smell of feeds

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

therapeutic antimicrobials

A

antibiotics, drugs and other compounds used for treatment and/or prevention of a specific disease

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

non-therapeutic antimicrobials

A

antibiotics added to poultry and swine feeds to increase growth rate and feed efficiency

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

the mode of action of non-therapeuetic antimicrobials is still uncertain. They:

A
  • inhibit pathogens
  • inhibit GI microbes-toxins
  • cause nutrient sparing effects
  • inhibit nutrient by GI microbes
  • increase feed and water intake
  • increase nutrient absorbtion
17
Q

antibiotic resistance occurs by 3 modes:

A
  • transformation (DNA uptake from environment)
  • conjugation
  • transduction