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welfare inspection of laying hens caged alternative
Welfare Inspection Of Laying Hens- Caged & Alternative
  • Jarlath O’ Connor VI
  • Animal Health And Welfare Division
where in ireland
Main players

Monaghan (37%)

Cavan (14%)

Rest (49%)

Where in Ireland?
system distribution
System Distribution?
  • Main players
    • Monaghan (66%)
    • Cavan (1%)?
system distribution5
Main players

Cavan (21%)

Monaghan (20%)

Rest (39%)

System Distribution?
alternative systems
Alternative Systems
  • S.I. 98/2002
    • All built/rebuilt/re-instated > 01/01/2002
    • For all > 01/01/2007
  • Facilities
    • Nests
      • One nest/ 7 hens
      • Group nests- 1m2/120 hens
alternative systems7
Alternative Systems
  • Perches
    • No sharp edges
    • Not above litter
    • 15 cm/hen
    • 30 cm horiz. b/t perches
    • 20 cm horiz. b/t perch and wall
  • Levels
    • No more than 4 levels
    • < 54 cm headroom b/t levels
    • Equal food and water access
    • Droppings
cage systems
Cage Systems
  • Un-enriched (conventional) Cages
    • From 01/01/2003 but not > 01/01/2012 hens may be kept in un-enriched cages
      • 550 cm2/hen unrestricted
      • Height >40 cm over 65% of cage or not < 35 cm at any point
cage systems9
Cage Systems
  • Un-enriched (conventional) Cages
    • From 01/01/2003 on:
      • Floor support forward facing claws
      • Slope of floor not > 14% or 8 degrees
cage systems10
CAGE SLOPE

Cage depth (R) 50 cm

Cage Height at back (P) 33 cm

Cage height at front (S) 40 cm

Floor slope (80) 7.9 0

(To Calculate: Tan x0 = Q/R)

(Therefore slope = x0 = Tan-1[(S-P) / R] )

Cage Systems

P

S

Q

R

cage systems11
Cage Systems
  • Un-enriched (conventional) Cages
    • From 01/01/2003 on:
      • Cage fitted with suitable claw shortener
cage systems12
Cage Systems
  • Enriched Cages
    • From 01/01/2003 on:
      • Total area of > 2000 cm2
      • 750 cm2/hen (at least 600 cm2 usuable/ hen)
      • Height > 20 cm at every point
cage systems13
Cage Systems
  • Enriched Cages
    • From 01/01/2003 on:
      • Nest
      • Litter
      • 15 cm perch/hen/cage
      • Claw shortener
is ventilation satisfactory
Is ventilation satisfactory?
  • Ventilation
    • Keep temp., gas, dust and rel. humidity within healthy limits
    • Maximum Vent. Rate
    • Minimum Vent. Rate
    • Air circulation
      • Uniform
      • Draught-free
is ventilation satisfactory15
Is ventilation satisfactory?
  • Noxious gas build-up?
      • Poor Ventilation
        • Low ambient temp.
      • Waste removal
      • Wet litter
    • Ammonia
      • 5-15: Detectable by smell
      • 10-20: Adverse effects on humans
      • 25-50: Increased risk of resp. dis.
      • 50+: Direct effect on layers R.R/eyes
is ventilation satisfactory16
Is ventilation satisfactory?
  • What to look for?
    • Thermometers
    • Automated thermostats
    • Air quality in shed
    • Litter quality
    • Faeces disposal
how long is rest period where artificial light is used
Lighting

Darkness is deprivation

S.I. 98/2002

Light sufficient to allow hens see eachother, be seen, to investigate and act normally

24 hr cycle with twilight and 8 hours uninterrupted darkness

35-65 lux

Stage of cycle

Lower tiers of cages

Aggression

Localised bunching

Forced moulting

How long is rest period where artificial light is used?
litter adequacy condition
Litter adequacy/condition?
  • S.I. 98/2002
    • Materials
      • Health
        • Mites
        • Worms
      • Behaviour
        • Foraging
        • Scratching
    • Enriched cages?
      • Adequate litter to allow pecking/scratching/hen
equipment maintenance
Equipment Maintenance
  • Questions?
    • How regularly is automated equipment checked?
      • > once/day
    • What alternatives are present should feeding or environmental equipment breakdown?
      • Action plan
    • Is there a functioning alarm system and generator?
      • Must be present
are the hens provided with adequate feed and water
Are the hens provided with adequate feed and water?
  • Feeders
    • S.I. 98/2002
      • Alternative
        • Unrestricted access
        • 10 cm linear feeder/hen
        • 4 cm circular feeder/hen
      • Un-enriched
        • 10 cm feeder/hen
      • Enriched
        • 12 cm feeder/hen
are the hens provided with adequate feed and water21
Are the hens provided with adequate feed and water?
  • Water supply
    • S.I. 98/2002
      • Alternative
        • Unrestricted access
        • 2.5 cm/hen continous drinkers
        • 1 cm/hen circular trough
        • One nipple-drinker or cup/ 10 hens
        • Plumbed drinking points – 2 nipple-drinkers or cups within reach of each hen
are the hens provided with adequate feed and water22
Are the hens provided with adequate feed and water?
  • Water supply
    • S.I. 98/2002
      • Un-enriched
        • Unrestricted access
        • 10 cm linear trough/hen
        • Plumbed drinking points – 2 nipple-drinkers or cups/cage
      • Enriched
        • Unrestricted access
        • Plumbed drinking points – 2 nipple-drinkers or cups/hen/cage
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