Lecture 16: Feed additives Flashcards
1
Q
what are feed additives?
A
an ingredient or combination of ingredients added to the basic feed mix
2
Q
_____ of food animals get some drug during their life time.
A
80%
3
Q
feed additives effects on…
A
- performance
- animal health and welfare
- environment
4
Q
feed enzymes
A
endogenous enzymes
- carbohydrases
- proteases
- lipase
- phytase
5
Q
probiotics
A
- specific microbial cultures or ingredients that stimulate cultures capable of modifying the GI environment
- alive
6
Q
prebiotics
A
non-digestible food ingredient that affects the host by selectively stimulating the growth/activity in the colon
7
Q
organic acids help with…
A
- reduce pH in the upper digestive tract
- improve nutrient digestibility
- prevent colonization by pathogenic bacteria
- source of energy
8
Q
hormone-like products help…
A
- increases muscle growth
- reduces fat growth
- suppresses feed intake
9
Q
A
10
Q
other uses of feed additives
A
- buffer & neutralizers
- antioxidants
- chemical preservatives
- pellet-binding agents
- fly control on manure
- stress
- ketosis
