Meet poultry welfare requirements

The five welfare needs

Under the Animal Welfare Act 2006, you must ensure your poultry have:

1. A suitable environment: Appropriate housing, shelter from weather, adequate space, and clean living conditions
2. A suitable diet: Access to fresh water and nutritionally balanced feed appropriate for their age and production stage
3. The ability to exhibit normal behaviour patterns: Sufficient space, proper facilities, and company of their own kind
4. Protection from pain, suffering, injury, and disease: Prevention and rapid treatment of health problems
5. To be housed with, or apart from, other animals: Appropriate stocking densities and compatible groupings

These are legal obligations, not suggestions. Inspectors can assess whether these needs are being met and take enforcement action if they are not.

Stocking density requirements

Stocking density is the weight of birds per square metre of usable floor area. Maximum densities vary by production system:

Laying hens (all systems)

• Barn and free-range systems: Maximum 9 birds per m2 of usable area
• Multi-tier systems (aviaries): Maximum 9 birds per m2 of usable area at each level, with no more than 4 tiers

'Usable area' means an area at least 30 cm wide with at least 45 cm headroom and a floor slope not exceeding 14%, covered with litter or perforated/slatted flooring, excluding nest boxes.

Broilers (meat chickens)

Broiler stocking density is measured in kilograms per square metre (kg/m2), not number of birds:

• Standard maximum: 33 kg/m2 (approximately 15-17 birds depending on target slaughter weight)
• Enhanced standards (with additional requirements): Up to 39 kg/m2 permitted if the keeper meets specific criteria

Requirements for stocking above 33 kg/m2

To stock broilers above 33 kg/m2 (up to 39 kg/m2), you must:

• Hold a recognised training certificate in poultry welfare
• Maintain detailed documentation of house specifications, ventilation systems, and environmental controls
• Provide cumulative daily mortality data to APHA
• Demonstrate that welfare indicators (foot pad dermatitis, hock burn, mortality) remain within acceptable limits
• Meet enhanced environmental standards for ventilation, lighting, and litter quality

Stocking density alone does not ensure welfare. The relationship between stockmanship, litter management, environmental control, and stocking density is critical.

Lighting requirements

Poultry must not be kept in permanent darkness. Lighting requirements ensure birds can see to feed, drink, and behave normally:

All poultry

• Minimum intensity: At least 20 lux during lighting periods, measured at bird eye level
• Dark period: Birds must have an adequate period of darkness in each 24-hour period - for broilers the legal minimum is 6 hours of darkness in total, including one continuous period of at least 4 hours; around 8 hours of darkness is recommended good practice for laying hens
• Light distribution: Illumination must cover at least 80% of the usable area

Broilers

The lighting programme must follow a 24-hour rhythm with specific requirements:

• Within 7 days of placement and until 3 days before slaughter, lighting must follow a 24-hour cycle
• Minimum 6 hours darkness per 24 hours, including at least one uninterrupted period of 4 hours (excluding dimming periods)
• Twilight (dimming) periods of at least 30 minutes during lighting transitions to allow birds to settle

Laying hens

• Minimum 10 lux in laying areas (except nest boxes which should be less than 1 lux)
• Natural light through windows or openings preferred where possible
• Avoid sudden changes in lighting - use gradual dimming to prevent panic and smothering

Birds naturally supplement daylight, so if housing has adequate daylight, artificial lighting is only needed to extend day length during winter if required for production purposes.

Litter and environmental enrichment

Poultry must have access to friable (loose, dry) litter that allows natural behaviours like scratching, pecking, and dust bathing:

Litter requirements

• All poultry in buildings: Must be kept on, or have access to, well-maintained litter
• Laying hens (non-cage): At least 250 cm2 of littered area per hen, with litter covering at least one-third of the floor area
• Broilers: All birds must have permanent access to litter that is friable and dry
• Litter materials: Wood shavings, straw, or other absorbent materials that allow dust bathing and foraging behaviour

Litter quality

Litter must be maintained to prevent:

• Wet litter: Contributes to foot pad dermatitis and hock burn - monitor drinkers for leaks and ventilation for condensation
• Capping: A hard crust forming over litter prevents dust bathing - break up crusts regularly
• Ammonia build-up: Keep ammonia concentration below 20 ppm (ideally below 10 ppm) measured at bird head height - a legal limit in broiler houses stocked above 33 kg/m2

Environmental enrichment

Enrichment reduces harmful behaviours like feather pecking and improves bird welfare. Consider providing:

• Straw bales: Provide elevated resting areas and barriers
• Perches and platforms: Allow birds to roost and escape aggression
• Pecking objects: Brassicas (cabbages), hanging CDs, string, or commercial pecking blocks
• Scattered grain: Encourages foraging behaviour

Enrichment significantly increases time birds spend standing, walking, and running while reducing aggression. The Code of Practice recommends enrichment for all poultry flocks.

Ventilation and air quality

Adequate ventilation is essential for bird health and welfare. Poor air quality causes respiratory disease, eye irritation, and poor performance:

Air quality standards

• Ammonia: In broiler houses stocked above 33 kg/m2, must not exceed 20 ppm (parts per million) measured at bird head height - target below 10 ppm in all systems
• Carbon dioxide: In broiler houses stocked above 33 kg/m2, must not exceed 3,000 ppm
• Dust: Should be minimised through litter management and ventilation
• Temperature: Appropriate for bird age and type (chicks need 30-33°C, adult birds 18-21°C depending on conditions)

Ventilation requirements (broilers stocking above 33 kg/m2)

Keepers stocking above 33 kg/m2 must have:

• A detailed ventilation plan specifying target air quality parameters (airflow, air speed, temperature)
• Emergency ventilation backup systems with alarm mechanisms
• Continuous monitoring systems for temperature and humidity
• Records of daily environmental measurements

Signs of poor air quality

Monitor birds for signs of respiratory distress:

• Eye irritation (watering, swelling, rubbing)
• Snicking, gasping, or abnormal breathing sounds
• Birds clustering away from certain areas of the house
• Increased mortality or culling for respiratory conditions

Feeding and water requirements

All poultry must have continuous access to wholesome feed and fresh, clean water appropriate for their age and needs:

Feed requirements

• Feed space: Sufficient to prevent competition and ensure all birds can access feed
• Feed composition: Must meet nutritional requirements for the bird's age and production stage
• Feed withdrawal: Feed must not be withdrawn for more than 12 hours before slaughter (birds must have access to feed until catching begins)

Water requirements

• Continuous access: Fresh water must be available at all times
• Nipple drinkers or cups (laying hens): At least 1 nipple drinker or cup per 10 hens; if plumbed in, at least 2 must be within reach of each hen
• Water quality: Clean, palatable water - check and clean drinkers regularly

Feed trough space (laying hens)

• Linear feeders: At least 10 cm per bird
• Circular feeders: At least 4 cm per bird

Inadequate feed or water access leads to competition, aggression, and welfare problems. Monitor consumption daily and investigate sudden changes.

Beak trimming rules and restrictions

Beak trimming (reducing the length and sharpness of the beak) is permitted only as a last resort to prevent feather pecking and cannibalism. Under the Mutilations (Permitted Procedures) (England) Regulations 2007, strict conditions apply:

Permitted methods

• Infrared treatment: The preferred method - carried out at the hatchery on day-old chicks using infrared beam technology. Causes the beak tip to soften and fall off within days without acute pain or bleeding.
• Hot blade trimming: No longer permitted as a routine method in England - infrared treatment is the only permitted routine method.

Restrictions

• Age limit: Beak trimming must only be performed on chicks up to 10 days old
• Amount removed: No more than one-third of the upper beak may be removed
• Competent person: Must be performed by a trained, competent operator
• Last resort: Should only be used when other measures to control injurious pecking have failed or are impractical

Alternatives to beak trimming

Before resorting to beak trimming, consider:

• Reducing stocking density
• Improving environmental enrichment (pecking objects, perches, litter quality)
• Adjusting lighting intensity and programmes
• Addressing nutritional deficiencies (sodium, methionine, fibre)
• Selecting genetic strains less prone to feather pecking
• Managing stress factors (disease, temperature extremes, handling)

Some farm assurance schemes and retailers require non-beak-trimmed flocks. If supplying these markets, focus on management practices that prevent injurious pecking without physical intervention.

Laying hen specific requirements

In addition to general poultry welfare requirements, laying hens in non-cage systems must have access to specific facilities:

Nest boxes

• Individual nests: At least 1 nest for every 7 hens
• Group nests (colony nests): At least 1 m2 per 120 hens
• Nest design: Enclosed, darkened areas (less than 1 lux) that encourage laying and discourage floor eggs

Perches

• Perch space: At least 15 cm per hen
• Perch design: Without sharp edges that could cause injury
• Positioning: Not mounted above the litter; horizontal distance between perches at least 30 cm; distance from wall at least 20 cm

Pop holes (for free-range and organic systems)

• Size: Adequate for birds to pass through easily, with a combined length of at least 4 m per 100 m2 of building floor area
• Distribution: Along the full length of the building to prevent crowding
• Access: Must provide genuine access to range - birds must be able to reach outdoor areas freely during daylight

Flooring

• Floors must support each of the forward-facing claws of each bird's foot
• Wire or perforated flooring must have openings appropriate for bird size to prevent foot injuries

Broiler (meat chicken) specific requirements

The Welfare of Farmed Animals (England) (Amendment) Regulations 2010 implemented the EU Broiler Welfare Directive. These requirements apply to conventionally reared meat chickens in flocks of 500 or more birds:

Daily inspections

• Inspect all birds at least twice daily
• Remove dead birds at each inspection
• Cull or isolate birds showing signs of illness or injury
• Record mortality at each inspection

Drinker and feeder access

• Nipple drinkers: 1 per 10 birds maximum
• Bell drinkers: 1 per 100 birds (or 2.5 cm edge space per bird)
• Feed space: Sufficient for all birds to feed together without excessive competition

Cumulative daily mortality reporting (above 33 kg/m2)

For flocks stocked above 33 kg/m2, keepers must record and report:

• Cumulative daily mortality rate throughout the flock cycle
• Welfare indicator data from slaughterhouses (foot pad dermatitis, hock burn)
• Post-mortem rejection rates

High mortality or poor welfare indicators trigger mandatory stocking density reductions for subsequent flocks.

Broiler keeper training

Anyone responsible for broilers must hold a certificate of competence recognised by the Secretary of State, covering:

• Handling and catching techniques
• Feeding and watering management
• Recognition of common diseases and welfare problems
• Emergency procedures

Free-range and organic additional requirements

Free-range and organic poultry systems must meet additional standards beyond the basic welfare regulations:

Free-range laying hens

• Outdoor access: Continuous daytime access to open-air runs for at least 8 hours per day
• Outdoor stocking density: Maximum 2,500 birds per hectare (1 bird per 4 m2)
• Range vegetation: Runs must be mainly covered with vegetation
• Pop holes: Must provide genuine, usable access distributed along the building length

Free-range broilers

• Age for outdoor access: Access to open-air range from the age of 6 weeks
• Minimum slaughter age: 56 days (8 weeks) minimum
• Outdoor area: At least 1 m2 per bird
• Pop holes: At least 4 m total opening per 100 m2 of floor area

Organic systems (additional to free-range)

• Lower indoor stocking densities: Typically 6 hens per m2 (layers) or 21 kg/m2 (broilers)
• Higher outdoor stocking: Maximum 2,500 hens per hectare (organic layers)
• Slower-growing breeds: Organic broilers must use slower-growing genetic strains
• Organic feed: 100% certified organic feed ingredients
• Antibiotic restrictions: Limited use of antibiotics with extended withdrawal periods
• Certification: Must be certified by an approved organic control body (Soil Association, Organic Farmers & Growers, etc.)

Bird flu and temporary housing

During Avian Influenza Prevention Zone (AIPZ) housing orders, free-range birds may be housed temporarily without losing free-range status. For eggs, the previous 16-week time limit was removed in 2025 (by the Marketing of Eggs (Amendment) Regulations 2025), so eggs keep free-range status for the whole of any mandatory housing period. The equivalent 12-week limit for free-range poultry meat was removed by amendment regulations made in 2025.

Biosecurity and Avian Influenza Prevention Zone (AIPZ)

All poultry keepers must maintain biosecurity to prevent disease introduction and spread. During high-risk periods (typically autumn/winter), additional mandatory measures apply under Avian Influenza Prevention Zones:

Year-round biosecurity requirements

• Footwear: Dedicated footwear for poultry areas or use of foot dips with Defra-approved disinfectant
• Clothing: Clean protective clothing when entering bird areas
• Feed and water: Store feed under cover to prevent wild bird access; cover water sources
• Visitor controls: Minimise visitors to poultry areas; provide protective clothing and footwear for essential visitors
• Wild bird exclusion: Net or cover outdoor areas to prevent contact with wild birds where practical
• Cleaning: Regular cleaning and disinfection of housing and equipment

AIPZ mandatory measures

When an AIPZ is declared, all bird keepers must:

• Use foot dips with Defra-approved disinfectant at all entry and exit points
• Store feed, water, and bedding under cover to prevent wild bird contamination
• Cleanse and disinfect vehicles and equipment entering and leaving the premises
• Minimise movement of people, vehicles, and equipment to and from bird areas
• Keep ducks and geese separate from other poultry species

Housing orders

In high-risk situations, Defra may issue housing orders requiring all poultry (including free-range) to be housed. Failure to comply is a criminal offence. Check GOV.UK for current AIPZ status and housing requirements in your area.

Premises with over 500 birds

Additional requirements include:

• Clean and disinfect housing and equipment at the end of each production cycle
• Enhanced record-keeping of visitors, vehicle movements, and biosecurity measures

Record-keeping and inspections

Comprehensive records demonstrate compliance and support disease traceability:

Records you must keep

• Mortality records: Number of birds found dead at each daily inspection
• Flock records: Number and date birds placed, breed/strain, source
• Movement records: Dates and numbers of birds arriving and leaving, destinations/sources
• Medication records: All treatments given, dates, withdrawal periods
• Feed records: Feed type, supplier, batch numbers (for traceability)

Additional records for broilers (500+ birds)

• Daily mortality and cumulative mortality rate
• Stocking density calculations for each flock
• Environmental monitoring data (temperature, humidity, ammonia where applicable)
• Slaughterhouse welfare indicator reports (foot pad dermatitis, hock burn scores)

Retention periods

• General records: Keep for at least 3 years
• Medication records: Keep for at least 5 years

Inspections

Your premises may be inspected by:

• APHA (Animal and Plant Health Agency): For disease control and welfare compliance
• Local authority: Animal Health Officers for welfare enforcement
• Farm assurance schemes: If you're a member (Red Tractor, RSPCA Assured, etc.)

Inspectors can arrive unannounced. Ensure records are up to date and accessible, and that all staff understand welfare requirements.

Penalties for non-compliance

Failure to meet poultry welfare requirements can result in serious consequences:

Animal Welfare Act 2006 offences

Causing unnecessary suffering to an animal or failing to meet an animal's welfare needs can result in:

• Unlimited fine
• Imprisonment: Up to 5 years (following the Animal Welfare (Sentencing) Act 2021)
• Disqualification: Banned from keeping animals for a specified period or life
• Deprivation order: Removal of animals from your care

Welfare of Farmed Animals Regulations offences

Breach of specific regulations (stocking densities, lighting requirements, etc.) can result in:

• Improvement notices: Requiring you to rectify welfare breaches within a specified timeframe
• Prosecution: Fine up to £20,000 and/or 6 months imprisonment
• Stocking density reductions: Mandatory reduction for subsequent flocks if welfare indicators are poor

Other consequences

• Loss of farm assurance certification: Removal from Red Tractor, RSPCA Assured, or organic schemes
• Loss of free-range/organic status: Cannot market products at premium prices
• Reputational damage: Prosecution records are public; supermarkets and processors may refuse to trade with convicted suppliers
• Subsidy implications: Farm welfare breaches can affect agricultural subsidy payments

Prevention is always better than enforcement. Invest in training, maintain good records, and address welfare issues promptly.