Information

Welfare of meat chickens and meat breeding chickens: guidance

Detailed information about the needs of meat chickens and meat breeding chickens and how to meet these needs in accordance with good practice.


Annex 3: Trigger Levels

Process 1

A trigger report is generated if the level of a post-mortem condition is exceptionally high (defined as greater than 6 standard deviations above the average).

Post-mortem condition Process 1 trigger level (%)
Ascites/Oedema 2.02
Cellulitis & Dermatitis  3.00
Dead on Arrival (DOA) 1.51
Emaciation 0.67
Joint lesions 0.43
Septicaemia/Respiratory 9.28
Total rejections 11.76
Cumulative Daily Mortality 11.85
FPD score* 167

*The FPD score is not a percentage but is a score of the severity and extent of lesions (between 0 and 200) based on scoring 100 feet.

Process 2

A trigger report is generated if the Cumulative Daily Mortality Rate is unusually high (defined as greater than 3 standard deviations above the average = 7.37%) and, additionally, the level of three or more other post-mortem conditions is high (defined as above the average).

Post-mortem condition Process 2 trigger level (%)
Ascites/Oedema 0.21
Cellulitis & Dermatitis  0.20
Dead on Arrival (DOA) 0.12
Emaciation 0.04
Joint lesions 0.02
Septicaemia/Respiratory 0.49
Total rejections 1.11
FPD score* 60

*The FPD score is not a percentage but is a score of the severity and extent of lesions (between 0 and 200) based on scoring 100 feet.

Contact

Email: Kirsten.Foubister@gov.scot

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