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AN INNOVATIVE FEED WALL DESIGN FOR POULTRY FARMS

QUESTIONS

FEED WALLS IN AGROSYSTEMS

Panel discussion organised by the Office for Agroforestry and Knowledge Support (OAKS)

WELCOME!

WELCOME !

PROBLEMS ON POULTRY FARMS

Wind

Water logging

PROBLEMS IN POULTRY FARMS

Dust (erosion)

Predators

Triangle shape

Main advantages

Oasis

COMPOSITION

Better access for maintenance

Better wind reflection

Use of more delicate species

More edges

PROCESS IMPLEMENTATION

Stage 1

Step 5

Stage 2

Step 4

Step 1

Stage 3

Step 3

Step 2

Stage 4

PREPARATION PHASE

1. LIVESTOCK ANALYSIS

Characteristics

Needs

1. LIVESTOCK'S

NEEDS ANALYSIS

Products

2. FEED WALL FUNCTIONS ANALYSIS

A system is most resilient when it fulfills as many functions as possible.

Bill Mollison

Permaculture

2. FEED WALL FUNCTIONS ANALYSIS

Erosion

Windbreak

N sequestration

Carbon sequestration

Shade

Feed

Hydrology

3. LANDSCAPE ANALYSIS (LESA)

Geomorphology

Elevation

3. LANDSCAPE ANALYSIS

Human land use

Soil type

Flora & fauna

4. SUITABLE PLANT SPECIES

Characteristics

Abiotic preferences

Climate zone

Shade tolerance

Moisture

Soil preference

pH tolerance

Deciduous

Evergreen

Annual/perennial

Shape

4. SUITABLE PLANT SPECIES

Feeding value

Flowering period

Toxicity for chickens

DESIGN PHASE

1. PLACEMENT

Energy planning

1. PLACEMENT

Sector planning

Wind direction

Natural energy sources

Roaming distance

20-50 m for chickens

Japanese silverberry

2. FIRST OUTLINE OF THE WALL

Triangular shape

Edges

2. FIRST OUTLINE OF THE WALL

Common linden

Pioneer species

Plant stacking

White willow

Grey alder

European beech

3. ADAPTING TO THE SECTOR PLANNING

Shelter

Fast-growing shrubs

3. ADAPTING TO

THE SECTOR PLANNING

Windbreak

Wind-resistant species

Siberian peashrub

Soil improvement

N- fixation and tough roots

Scotch broom

Elder

4. INCREASING CHICKEN WELFARE

Minimise negative abiotic influences

4. INCREASING CHICKEN WELFARE

Feed

Protection from predators, wind and sun

Common Hazel

Withstand trampling

Juneberry

Wild pansy

5. STIMULATING BIODIVERSITY

Chamomile

Chicken health benefits

5. STIMULATING BIODIVERSITY

Pollinators

Wormwood

"Islands" of herbs

Elephant grass

Oregano

ECONOMIC ANALYSIS

ECONOMIC ANALYSIS

BENEFITS

Decreased external feed cost

Ecosystem services

Not at high chicken density

BENEFITS

400€-970€/year/feed wall

(1460 m2)

Reduced mortality

Chicken welfare

Increased egg quality

COSTS

Difficult economic valuation

Uncertainty in agroforestry

Professional maintenance

COSTS

Knowledge of farmer?

Pruning cost

1850€/feed wall

(of which 360€/tools)

TO CONCLUDE

TO CONCLUDE

And now: combining knowledge and practice

THANK YOU!

Daniël Kollen

MSc Forest and

Nature Conservation

Thijs Hendrikse

MSc Animal Sciences

Sietse Hartman

MSc Organic Agriculture

Cecilia Revol

MSc Organic Agriculture

Iris Janssens

MSc Organic Agriculture

Murielle Fuchs

MSc Organic Agriculture