- Y Diweddaraf sydd Ar Gael (Diwygiedig)
- Pwynt Penodol mewn Amser (31/12/2020)
- Gwreiddiol (Fel y’i mabwysiadwyd gan yr UE)
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Point in time view as at 31/12/2020.
There are outstanding changes not yet made to Commission Decision of 25 June 2010 on the implementation by Member States of surveillance programmes for avian influenza in poultry and wild birds (notified under document C(2010) 4190) (Text with EEA relevance) (2010/367/EU). Any changes that have already been made to the legislation appear in the content and are referenced with annotations.
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Where representative sampling as referred to in Section 2.2 is carried out, the number of poultry holdings to be sampled shall be calculated based on the figures set out in Tables 1 and 2 according to the poultry species present on the poultry holding.
For each poultry production category, except those of ducks, geese and mallards, the number of poultry holdings to be sampled shall be defined so as to ensure the identification of at least one infected poultry holding where the prevalence of infected poultry holdings is at least 5 %, with a 95 % confidence interval.
Sampling shall be carried out according to Table 1:
Number of poultry holdings (except duck, goose and mallard holdings) to be sampled in each poultry production category
Number of holdings per poultry production category F1... | Number of poultry holdings to be sampled |
---|---|
Up to 34 | All |
35-50 | 35 |
51-80 | 42 |
81-250 | 53 |
> 250 | 60 |
Textual Amendments
F1Words in Annex 1 para. 5.1.1 Table 1 omitted (31.12.2020) by virtue of The Exotic Disease (Amendment etc.) (EU Exit) Regulations 2018 (S.I. 2018/1410), regs. 1, 16(7)(g); 2020 c. 1, Sch. 5 para. 1(1)
The number of duck, goose and mallard holdings to be sampled shall be defined to ensure the identification of at least one infected poultry holding where the prevalence of infected poultry holdings is at least 5 %, with a 99 % confidence interval.
Sampling shall be carried out according to Table 2:
Number of duck, goose and mallard holdings to be sampled
Number of duck, goose and mallard holdings F2... | Number of duck, goose and mallard holdings to be sampled |
---|---|
Up to 46 | All |
47-60 | 47 |
61-100 | 59 |
101-350 | 80 |
> 350 | 90 |
Textual Amendments
F2Words in Annex 1 para. 5.1.2 Table 2 omitted (31.12.2020) by virtue of The Exotic Disease (Amendment etc.) (EU Exit) Regulations 2018 (S.I. 2018/1410), regs. 1, 16(7)(g); 2020 c. 1, Sch. 5 para. 1(1)
The figures referred to in points 5.2.1 and 5.2.2 apply both to poultry holdings sampled on the basis of risk-based surveillance and on the basis of representative sampling.
The numbers of birds to be sampled in the poultry holding shall be defined so as to ensure 95 % probability of identifying at least one bird that tests sero-positive for avian influenza, if the prevalence of sero-positive birds is ≥ 30 %.
Blood samples for serological examination shall be collected from all poultry production categories and poultry species from at least 5 to 10 birds (except ducks, geese and mallards) per poultry holding, and from the different sheds, where more than one shed is present on a holding.
In case of several sheds, samples shall be taken from at least five birds per shed.
The numbers of ducks, geese and mallards to be sampled in the poultry holding shall be defined so as to ensure 95 % probability of identifying at least one bird that tests sero-positive for avian influenza where the prevalence of sero-positive birds is ≥ 30 %.
Twenty blood samples(2) shall be taken for serological testing from each selected poultry holding.
A higher level of confidence in detection of duck and goose positive holdings is applied due to the evidence that infected duck and goose holdings are less likely than gallinaceous poultry to be detected by passive surveillance or early detection systems.
The increase in sample size compared to 5.2.1 is necessary due to the lower sensitivity of the diagnostic test when used in waterfowl.
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