ASC 378 FINAL EXAM QUESTIONS AND CORRECT
ANSWERS
Mycotoxins - Answers - fungal poisons
Factors that influence mycotoxin production by fungus - Answers - -high moisture
-insect damage
-change in pH
-temperature fluctuation
-ripeness
-cracked kernel
Important species that produce mycotoxins - Answers - -Aspergillus
-Fusarium
-Penicillum
Important mycotoxins that cause adverse effects in animals - Answers - -Alfatoxins
-Zearalenone
-Fumonisin
-Ochratoxin
-Vomitoxin (DON)
2 mechanisms of mycotoxicosis - Answers - 1. DNA adduct leading to reduced protein
synthesis
2. Alter neuronal or hormonal activity
2 methods to counteract mycotoxicosis - Answers - 1. Use of absorbent to bind toxins in
gut and reduce bioavailability
2. Ammoniation
Beak lesions - Answers - T-2 Toxicosis
Liver discoloration - Answers - Alfatoxicosis
Estrogenic effect - Answers - Zearalenone
Crazy Horse Disease - Answers - Fumonisin B1
Major processes in Feed Manufacturing - Answers - 1. ingredients receiving
2. grinding
3. batching and mixing
4. conditioning and pelleting
Receiving Center Ingredients Terms - Answers - 1. unprocessed grains
, 2. processed bulk ingredients
3. soft feed ingredients
4. heavy feed ingredients
5. liquids
6. micro-ingredients
Factors to consider when purchasing Grinding Equipment - Answers - 1. Target particle
size
2. Grinding capacity requirement
3. Maintenance cost
4. Environmental and safety
Which piece of equipment has a higher/better efficiency when it comes to manufacturing
pelleted feeds? - Answers - Hammer Mill
In the Hammermill, the grind/particle size is controlled by: - Answers - 1. Screen size
2. Hammer tip speed
3. Air assist system
4. Hammer setting
5. Hammer pattern
Receiving Center Equipment - Answers - 1. Scales
2. Unloading Mechanisms (mechanical scoops)
3. Receiving hopper and conveyors
4. Cleaning/screening devices
5. Elevator legs
Hammermill Advantages - Answers - 1. Able to produces a wide range of particle sizes
2. Works with any friable material and fibre
3. Lower purchase cost compared to roller mills
4. Low maintenance cost
5. Uncomplicated operation
Rollermill Advantages - Answers - 1. Low energy consumption
2. Low level of noise
3. Less heat is produced and thus less moisture loss
4. Uniformity of particle size of milled product
Types of Feed Mill Batching Systems - Answers - 1. Pre-batch grind
2. Post-mix grind
3. Post-batch grind
4. Post-pellet blend
Does the quality control/analysis unit required in a feed mill? Why or why not? -
Answers - Yes
ANSWERS
Mycotoxins - Answers - fungal poisons
Factors that influence mycotoxin production by fungus - Answers - -high moisture
-insect damage
-change in pH
-temperature fluctuation
-ripeness
-cracked kernel
Important species that produce mycotoxins - Answers - -Aspergillus
-Fusarium
-Penicillum
Important mycotoxins that cause adverse effects in animals - Answers - -Alfatoxins
-Zearalenone
-Fumonisin
-Ochratoxin
-Vomitoxin (DON)
2 mechanisms of mycotoxicosis - Answers - 1. DNA adduct leading to reduced protein
synthesis
2. Alter neuronal or hormonal activity
2 methods to counteract mycotoxicosis - Answers - 1. Use of absorbent to bind toxins in
gut and reduce bioavailability
2. Ammoniation
Beak lesions - Answers - T-2 Toxicosis
Liver discoloration - Answers - Alfatoxicosis
Estrogenic effect - Answers - Zearalenone
Crazy Horse Disease - Answers - Fumonisin B1
Major processes in Feed Manufacturing - Answers - 1. ingredients receiving
2. grinding
3. batching and mixing
4. conditioning and pelleting
Receiving Center Ingredients Terms - Answers - 1. unprocessed grains
, 2. processed bulk ingredients
3. soft feed ingredients
4. heavy feed ingredients
5. liquids
6. micro-ingredients
Factors to consider when purchasing Grinding Equipment - Answers - 1. Target particle
size
2. Grinding capacity requirement
3. Maintenance cost
4. Environmental and safety
Which piece of equipment has a higher/better efficiency when it comes to manufacturing
pelleted feeds? - Answers - Hammer Mill
In the Hammermill, the grind/particle size is controlled by: - Answers - 1. Screen size
2. Hammer tip speed
3. Air assist system
4. Hammer setting
5. Hammer pattern
Receiving Center Equipment - Answers - 1. Scales
2. Unloading Mechanisms (mechanical scoops)
3. Receiving hopper and conveyors
4. Cleaning/screening devices
5. Elevator legs
Hammermill Advantages - Answers - 1. Able to produces a wide range of particle sizes
2. Works with any friable material and fibre
3. Lower purchase cost compared to roller mills
4. Low maintenance cost
5. Uncomplicated operation
Rollermill Advantages - Answers - 1. Low energy consumption
2. Low level of noise
3. Less heat is produced and thus less moisture loss
4. Uniformity of particle size of milled product
Types of Feed Mill Batching Systems - Answers - 1. Pre-batch grind
2. Post-mix grind
3. Post-batch grind
4. Post-pellet blend
Does the quality control/analysis unit required in a feed mill? Why or why not? -
Answers - Yes
