Feed Safety Fundamentals

Question 1

Define Hygienisation

Answer 1

Sanitizing something through cleaning or sterilizing

Question 2

Define Sanitisation

Answer 2

The reduction of bacteria to safe levels (set by public health standards) to decrease the risk of infection

Question 3

Define Sterilisation

Answer 3

The process of making something free from bacteria or other living microorganisms

Question 4

Define Bio-security

Answer 4

measures aimed at preventing the introduction and/or spread of harmful organisms (e.g., viruses, bacteria, etc.) to animals and plants, in order to minimise the risk of transmission of infectious disease

Question 5

Define flushing

Answer 5

Removing potentially harmful residues (medication/ pathogens) from production equipment by running a clean ingredient, such as ground grain, through the system

Question 6

Define feed safety

Answer 6

Protecting animals and the people feeding animals from illness or injury from handling or consuming feed products

Question 7

Name the factors which can make feed unsafe/ contaminate feeds

Answer 7

1. Microbial Contamination
   2.Chemical Compounds
   3.Plant Compounds - Anti-nutritional factors

Question 8

What type of cell walls does bacteria contain?

Answer 8

• Gram +ve bacteria = thick wall of peptidoglycan layers
• Gram –ve bacteria = thin peptidoglycan layers + lipid membrane

Question 9

Provide Enterobacteria characteristics

Answer 9

Gram-negative rod-shaped bacteria

Facultative anaerobes

Non spore forming

Generally motile

Ferment sugars to produce lactic acid and other
by-products