biosecurity changing - western poultry...

Biosecurity Changing - Dave van Walleghem 1

BIOSECURITY

CHANGING

Dave Van Walleghem B.S.A.

National Biosecurity SpecialistVetoquinol Canada

Disease Control

Disease

control

Biosecurity

Disease Control

Vaccination

RWA


BIOSECURITY

• Physical

– Caz, Raz ,C&D, rodent, Insect….

• Personal

– PPE, Zoonosis…

• Material

• Transport

• Information

• Programs

Elements of a Biosecurity

Program

• Terminal Protection (TP)

Without livestock in the room or barn

• Continuous Protection (CP)

With livestock in the room, barn, or adjacent

pens

TERMINAL DISINFECTION– IN ABSENCE OF ANIMALS

1. Organic Matter Removal

2. Water Line Cleaning and Disinfection

3. Detergent Application

- Spraying / foaming

4. Washing and Rinsing

- High pressure water

5. Disinfection


6. Second Optional Disinfection

- Misting / fumigating


1. ORGANIC REMOVAL

�More intense cleaning as we go!

�Less build up. (CP)

�Better litter control (CP)

�Better equipment and designs (TP)

2. WATER LINE

CLEANING AND DISINFECTION…

�Why?

�Animals drink approximately 2X what they eat

� Improperly cleaned waterlines may harbor

�Biofilms containing a variety of microbes

Formation of Biofilms

Microorganisms

Obstruction

Formation of

viscous substanceResidues

Settling and attachment;

Settling and attachment; Settling and attachment;

Settling and attachment;

Colonization and biofilm formation;

Colonization and biofilm formation; Colonization and biofilm formation;

Colonization and biofilm formation;

Growth and clogging of water lines

Growth and clogging of water linesGrowth and clogging of water lines

Growth and clogging of water lines


2. WATER LINE


�Why?

�Animals drink approximately 2X what they eat

� Improperly cleaned waterlines may harbor

�Biofilms containing a variety of microbes

�Left over medications from previous batches

�Excess minerals

�Reduce flow - restriction

2. WATER LINE


�Maintance vs. Cleaning

�Maintance – Restricting / Maintaining (CP)

�Chlorine

�Hypochlorous acid

�Acidified sodium chlorites

�Chlorine dioxide

�Hydrogen peroxide

�Hydrogen peroxide and

peracetic acid

� Iodine or iodophors

�UV light

�Acidification

2. WATER LINE


�Testing

�Splitting lines –look or feel


Organic and Mineral Deposits…

2. WATER LINE


�Testing


�Water samples – levels of loads

2. WATER LINE


�Testing


�Water samples – levels of loads

�Swab samples – growing media

�Active chemical testing – specifying agents


2. WATER LINE


� Maintance vs. Cleaning.

� Cleaning – Without animals present or not allowed

to consume water (TP)

�Biofilms, Microbes, Medications..

�Choose an appropriate detergent depending on

issues: organic matter or mineral deposits

** Ensure treated waterline is not supplying water

to livestock in another room / building!

Organic and Mineral Deposits

Water Lines in Poultry Production


2. WATER LINE


�Prepare stock solution to ensure proper

dilution rate and volume, depending on

delivery system

� Inject solution in waterline

�Ensure product is present everywhere

2. WATER LINE


�Let stand (soaking time depends on

condition of the waterline)

�Soak while surface washing!

�Rinse / flush the line

�Preferably repeat steps using an

appropriate disinfectant

HOW ARE YOU MANAGING YOUR

WATER LINES?

A. Cleaning between

batches

B. Maintenance control

C. Both cleaning and

maintenance

D. Nothing

A. B. C. D.

0% 0%0%0%


3. DETERGENT APPLICATION– SPRAYING / FOAMING

• Thorough washing with a detergent is

essential to:

�Reduce time and water required for the cleaning process

�Help remove biofilms and minerals

�Help maximize the efficacy of disinfectants

Biofilms…

DETERGENTS

Dilution rates

• Low or high pressure spraying 2 - 24 mL/L

• Foam cleaning 8 - 24 mL/L

Benefits of increased concentration

• Better penetration

• Better lifting power

• Less energy needed for cleaning

• Better prepared surface


DETERGENTS

Rules for proper Washing

• Apply on decently dry surfaces

• Use appropriate amount for challenge

• Soak everything for at least 10 minutes

• Remove before the solution dries

DETERGENTS

DETERGENTS






• Foaming or Spraying dependant on surface


FOAMING VS SPRAYING

• Foaming

– Low pressure, injection of air

– Good for visual

– Good for smooth surfaces

• Spraying

– Low pressure, higher volume

– Good for porous surfaces

– Good penetration

DETERGENTS






• Foaming or Spraying dependant on surface

• Use proper type for the challenge

Water Alone is Not Enough

Ro

tat

e


QUESTION 2

What type of detergent do I use

1. Mostly alkaline(degreaser) with rotation to

an acidic (descaler)

2. Mostly acidic (descaler) with rotation to an

alkaline (degreaser)

3. Do not Rotate

4. Do not use detergents

WHAT TYPE OF DETERGENTS DO

YOU USE?

A. Mostly alkaline(degreaser)

with rotation to an acidic

(descaler)

B. Mostly acidic (descaler)

with rotation to an alkaline

(degreaser)

C. Do not rotate

D. Do not use detergents

Most

ly a

lkalin

e(degre

ase..

Most

ly a

cidic

(desc

aler) ..

.

Do n

ot rota

te

Do n

ot use

dete

rgents

0% 0%0%0%

4. WASHING AND RINSING– HIGH PRESSURE WATER

�Before detergent solution dries…

�Thoroughly wash all surfaces, to remove

any remaining organic / mineral material,

and rinse detergent solution off

�Let dry before moving on to the next step

(no puddles or excess water)


5. DISINFECTION

• Even though cleaning eliminates >90% of

microbes, what’s left is still more than enough

to be harmful to livestock

• Live animals and porous surfaces

– High contamination / more organisms

�Using a disinfectant proven efficient

against bacteria, fungi and especially

viruses is therefore essential!

Type of Microbes …

Viruses

Peplomer : Glycoproteins

Envelope : Phospholipid A

bilayer

Capside: Proteins B

± lipophilic C

DNA or RNA

Viroids

More susceptibleFungi *MycoplasmaGram + *Gram – *RickettsiaPseudomonas *Enveloped Viruses (gr A)

Yeasts & AlgaeChlamydiaNon-env. Viruses (gr C) *Mycobacteria *Fungal Spores

Non-env. Viruses (gr B) *Bacterial Spores ViroidsOocysts

PrionsLess susceptible

Sensitivity to Disinfectants : poultry

A

B

C/D

E

F

G

Clostridium,Listeria

Strept., Staph.* EnterobacterE coli,

Pasteurella, Salmonella*

Birna: IBD, Corona: IBHerpes: Marek, ILT

Orthomyxo: AIParamyxo: ND

Toga: WNRetro: Leucosis

Astro: PEMSCirco: CA, PBFD

Aphto*: FMDEntero, Parvo*

Pox: Fowl poxAdeno*: EDS, IBH

Reo*: Synovitis

Clostridium

Aspergillus


More susceptibleFungi *MycoplasmaGram + *Gram – *RickettsiaPseudomonas *Enveloped Viruses (gr A)

Yeasts & AlgaeChlamydiaNon-env. Viruses (gr C) *Mycobacteria *Fungal Spores

Non-env. Viruses (gr B) *Bacterial Spores ViroidsOocysts

PrionsLess susceptible

Comparison of Efficacy …

LL

IL

HL

A

B

C/D

E

F

G

5. DISINFECTION– SPRAYING / FOAMING…

�Ensure that there are no puddles or excess

water on floor, walls and equipment before

moving on

�Surfaces should be dry as possible:

➼Prevent over-dilution

➼Prevent chemical incompatibilities

➼Improve penetration of the

disinfectant


�Choose an appropriate product, according to

ambient temperature, presence of specific

pathogens and contamination / risk level

�Prepare stock solution to ensure proper

dilution rate and quantity to be used

depending on delivery system


�Let stand at least 10 minutes

– Minimal contact time for disinfectants in general

�Dry as quickly as possible afterward

�Too long a contact time is not

necessarily preferable nor desirable!

�Some disinfectants need to be rinsed

off!

�Proper Cleaning and Disinfecting is

Not a “One step” process!!!


6. SECOND

OPTIONAL DISINFECTION– MISTING / FOGGING

• Misting / fogging is recommended to disinfect

inaccessible areas, or simply to complete

disinfection, after mobile equipment and litter

are returned

• Sometimes called “double disinfection”

�Misting / fogging do not replace

disinfection by spraying!!!

Elements of a Biosecurity

Program

• Terminal Protection

Without livestock in the room or barn

• Continuous Protection

With livestock in the room, barn, or adjacent

pens


TERMINAL DISINFECTION– IN ABSENCE OF ANIMALS

1. Organic Matter Removal

2. Water Line Cleaning and Disinfection

3. Detergent Application


4. Washing and Rinsing

- High pressure water

5. Disinfection


6. Second Optional Disinfection

- Misting / fumigating

Disease Control

Vaccination

RWA

THANKS!

QUESTIONS?David Van Walleghem b.s.a.

Biosecurity TechnicianVetoquinol N.-A. Inc.

1-204-612-6065

[email protected]

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