breder hatchery

8/12/2019 Breder Hatchery

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Biosecur i ty

Protection from exposure to disease

What?

Why?

How?


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Biosecur i ty

A set of management practices whichwhen followed correctly reduce thepotential for the introduction and spread ofdisease causing organisms onto, andbetween sites.

From the perspective of the bird ratherthan just the farm


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Biosecur i ty

Three Key Levels of Biosecurity

Conceptual Biosecurity

Structural Biosecurity

Operational Biosecurity


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Biosecur i ty

Conceptual Biosecurity

Involves Site planning

Location e.g proximity to other farms,transport etc.

Almost impossible to change once

committed without very high cost


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Biosecur i ty

Structural Biosecurity

Concerns the design of the farm and

buildings.

Includes house design (easy to clean),

site layout and security.

Expensive to change once built.


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Biosecur i ty

Operational Biosecurity

The points involved with day to day

running of the site. Includes routine disinfection, control of

visitors, source of stock etc.

Can be modified at low cost according torequirements


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Disease transm ission

Different disease causing agents requirediffering priorities in relation to biosecurity

There is a direct relationship betweenwhere the agent multiplies in the bird andits mode of transmission from one bird toanother, or from one site to another


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Disease transm iss ion :

Resp iratory diseases

high concentrations in the respiratory tract

+++ mucus

sneezing and coughing

aerosols

e.g. ND, IB, AI, TRT, mycoplasma


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Disease transm iss ion : Enter ic

(gu t) d iseases

Diarrhoea

spread via droppings

e.g. salmonella, campylobacter,coccidiosis, viruses


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Disease transm iss ion : Vert ical

t ransmiss ion

from breeders

infection via air sac or oviduct

egg contamination

egg transmission

e.g. mycoplasma, salmonella


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Disease transm iss ion : Site

contaminat ion

persistent, resistant organisms

contaminate litter, equipment,

environment

e.g. ILT, Gumboro, Mareks, CAV, many

bacteria


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Breeder Farm and Hatchery

Breeding Stock

Breeding Farm

Egg collection

Farm egg storage

Egg Transport

The Hatchery

Chick delivery


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B iosecu r ity - why?

1. To keep lethal, highly contagiousdiseases out of premises e.g. Newcastledisease (Fowl Pest), avian influenza, oracute Gumboro disease

2. To reduce challenge by commonpathogens known to reduce productivitysuch as E.coli and coccidiosis


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B iosecu r ity - why?

3. To reduce or eliminate, backgroundimmunosuppressive agents such asMareks disease, chicken anaemia orGumboro disease, which leave birdssusceptible to other disease organisms

4. To reduce contamination with agents ofpublic health significance, such assalmonella or campylobacter


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Methods of sp read

1. Vermin e.g. salmonella, pasteurella

2. Feed e.g. salmonella, some ND strains

3. Wild birds e.g. mycoplasmas, ND, avian

influenza, ?IB, ?TRT, bacteria, worms


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Methods of sp read

4. Water e.g. E. coli, salmonella,campylobacter

5. Hatchery e.g. salmonella, aspergillus,

enterococcus, pseudomonas,mycoplasmas

6. Windborne e.g. IB, ND, TRT,?mycoplasmas

7. Faecal e.g. Gumboro, ND, salmonella,mycoplasma, viruses


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Con tro l Areas - Inan imate

1. locate away from other poultry (>5 miles)

2. avoid waterways, ponds or lakes

3. avoid putting birds on range

4. avoid major roads

5. remove litter from farm

6. concrete around houses

7. avoid standing water

8. use potable drinking water with low TVC


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Contro l areas - Peop le

limit staff movements

avoid visitors

control site traffic

spray vehicles

adequate protective clothing

BOOTS

hand washing

?showers


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Con tro l areas - poul try

Obtain stock from high health statussources.

Carry out regular health monitoring and

audits Carry out daily and proper disposal of

deaths / culls.


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Contro l areas - s ite

decontaminat ion

Effective cleaning anddisinfection

adequate turnaround time include houses, aprons,

equipment

use a closed water systemcarry out water sanitisation


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Contro l areas - s ite

decontaminat ion

Use a total feed system

carry out regular vermin control

audit efficacyuse only products with proven

broad spectrum efficacy


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Disease Con tro l

Freedom from Disease =Maximum Profits

Hygiene and Biosecurity =

The most cost effective method

of disease control


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STATIC VECTORS

Housing

Equipment

Organic WasteFeed System

Water System

Building Surrounds


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MOB ILE VECTORS

Livestock

Humans

RodentsOther Animals

Equipment

TransportOrganic Waste

Air Borne


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NUTRIENT VECTORS

Food

Water

(Bedding)


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TYPES OF DISINFECTION

Terminal

Continuous

(Production Breaks)


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STAGE 1

REMOVAL & DRY CLEAN

Remove stock

Equipment

Bedding

Gross organic waste

Dust


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STAGE 2

CLEANING & SANITISATION

Reducing infective material

Removal of dried on matter

Use a Detergent / Sanitiser

Allow to dry afterwards


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STAGE 3A

WATER SYSTEMS

Drainable

Drain

Clean

DisinfectFlush

Non-Drainable

CleanSanitise


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STAGE 3B

REMOVABLE EQUIPMENT

Soak

Scrub / Pressure Wash

Detergent Sanitizer

Disinfect

Dry


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STAGE 4

DISINFECTION

To remove residual challenge

Use broad spectrum disinfectant

Cover all surfaces

Cover all cracks & crevices

Allow to dry.


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STAGE 5

AERIAL DISINFECTION

Covers inaccessible areas

Replace movable equipment first.

Can be done after bedding is spread.

Fog / Fumigate

Safety required with formaqldehyde.

Rest period


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CONTINUOUS DISINFECTION

Control Access

Foot & Wheel Dips

Water Sanitization

Aerial Disinfection

Rodent Control


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Operat ional B iosecu r i ty

Control/restriction of Visitors

Strict use of Protective clothing

Hand Washing

Footdips etc


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Egg co l lect ion

Treat with Care at all stages

Hand washing

Egg sanitising

Disinfection and cleaning of

egg store


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Egg Transpo rt

Hatchery should dispatcha clean and disinfected

vehicleDriver to observe farmhygiene regulations


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Hatchery B iosecur i ty

Staff training and supervision

Defined working areasClean

and DirtyClearly defined routines and

frequencies.

Hygiene of personnelSite security


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Chick Del ivery

Chick boxdisinfection

Transport HygieneFarm Regulations

Disinfection ofreturning vehicleand crates


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Chick Del ivery

Chick box disinfection

Transport Hygiene

Farm Regulations

Disinfection of returning

vehicle and crates


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Conclus ion

Consider the operation as awhole

Trained OperativesMonitoring overall results

Routine Hatchery Monitoring


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The Resu lt

Freedom from

Disease =Maximum Profits


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