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Welfare of laying hens

Welfare of laying hens

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Embednosound Presentation Transcript

  • 1. Welfare Inspection Of Laying Hens- Caged & Alternative
    • Jarlath O’ Connor VI
    • Animal Health And Welfare Division
  • 2. Systems
  • 3. Where in Ireland?
    • Main players
      • Monaghan (37%)
      • Cavan (14%)
      • Rest (49%)
  • 4. System Distribution?
    • Main players
      • Monaghan (66%)
      • Cavan (1%)?
  • 5. System Distribution?
    • Main players
      • Cavan (21%)
      • Monaghan (20%)
      • Rest (39%)
  • 6. 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- 1m 2 /120 hens
  • 7. 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
  • 8. Cage Systems
    • Un-enriched (conventional) Cages
      • From 01/01/2003 but not > 01/01/2012 hens may be kept in un-enriched cages
        • 550 cm 2 /hen unrestricted
        • Height >40 cm over 65% of cage or not < 35 cm at any point
  • 9. Cage Systems
    • Un-enriched (conventional) Cages
      • From 01/01/2003 on:
        • Floor support forward facing claws
        • Slope of floor not > 14% or 8 degrees
  • 10. Cage Systems
    • CAGE SLOPE
    •  
    • Cage depth (R) 50 cm
    • Cage Height at back (P) 33 cm
    •  
    • Cage height at front (S) 40 cm
    • Floor slope (8 0 ) 7.9 0
    • (To Calculate: Tan x 0 = Q/R)
    • (Therefore slope = x 0 = Tan -1 [(S-P) / R] )
    P Q R S
  • 11. Cage Systems
    • Un-enriched (conventional) Cages
      • From 01/01/2003 on:
        • Cage fitted with suitable claw shortener
  • 12. Cage Systems
    • Enriched Cages
      • From 01/01/2003 on:
        • Total area of > 2000 cm 2
        • 750 cm 2 /hen (at least 600 cm 2 usuable/ hen)
        • Height > 20 cm at every point
  • 13. Cage Systems
    • Enriched Cages
      • From 01/01/2003 on:
        • Nest
        • Litter
        • 15 cm perch/hen/cage
        • Claw shortener
  • 14. 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
  • 15. 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
  • 16. Is ventilation satisfactory?
    • What to look for?
      • Thermometers
      • Automated thermostats
      • Air quality in shed
      • Litter quality
      • Faeces disposal
  • 17. 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
  • 18. Litter adequacy/condition?
    • S.I. 98/2002
      • Materials
        • Health
          • Mites
          • Worms
        • Behaviour
          • Foraging
          • Scratching
      • Enriched cages?
        • Adequate litter to allow pecking/scratching/hen
  • 19. 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
  • 20. 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
  • 21. 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
  • 22. 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
  • 23. The End