A.12 - Antinutritional compounds in forages Flashcards
1
Q
Collectively, Antinutritional compounds can…
A
- Decrease Feed Digestibility
- Decrease food intake
- Change Metabolism
- Poison
2
Q
What are Antinutritive Carbohydrates?
A
- Non-starch Polysaccharides (NSPs)
- 30% Digestibility
- Glucans, Arabinoxylans
- Enzyme Supplimentations reduce effects
3
Q
What are Raffinose, Stachyose and Verbascose?
A
- Antinutritive Carbohydrates
- Cause Colonic Bloat
- Found in Fabaceous plants
- Alleviated with beta-galactosidase
4
Q
What are Phytates and Phytic Acid?
A
- Reduce feed conversion rate
- Ruminants produce Phytase enzyme against them
- Poultry and Pigs are susceptible
- Phytase supplimentation enzyme advised
5
Q
What are Isoflavanoids?
A
- Found in Soybean, Lucerne, Clovers
- Mimic Oestrogen - Bind to Oestrogen receptors
- Decrease Fertility, Abortion
- Coumestrol, Genistein
6
Q
What are Saponin Terpenoids?
A
- Found in Fabaceae
- Disintegrate Membranes, Haemolyse RBC’s, Irritate the GI tract
- Ruminants, poultry and pigs most susceptible
7
Q
What are Lathyrogens?
A
- Found in Lathyrus Species
- ODAP, DAB
- Should be heat-treated
- Damage bones and connective tissue
8
Q
What are Lectins?
A
- Glycoproteins
- Bind to Epithelial cells
- Nutrient absorption diseases & Growth Depression
- Heat treatment used
