call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️
Avian disease
1. Diseases of Poultry II.
DR. NAGY EÖRSNÉ
Central Veterinary Institute, Budapest
Department of Poultry Pathology
2. ANTE MORTEM INSPECTION
At the farm before transportation to the slaughterhouse the poultry
flock must be examined by veterinarian.
A certificate must be composed on the results of this inspection and
the pre-life of the flock
If the certificate is available – and it is negative – and it does not
indicate the necessity of special measures, the ante mortem inspection
at the slaughterhouse will include the identification of transported
flock and control of injuries took place during transportation,
furthermore the examination of dead birds.
Based on these data and examinations the veterinarian decides whether
the flock will be submitted to normal or special slaughter or further
special examination.
3. HUNGARIAN ZOO SANITARY CODE
41/1997.(V. 28.) FM. r.
Notifiable Diseases
O.I.E. list A
– Newcastle disease (Paramyxovirus)
– Avian influenza (Orthomyxovirus)
– Duck plaque (Herpesvirus)
10. if NDV is observed on the farm:
In compliance with EU directive 93/119/EC,
depopulation of infected flocks may take place
using the following methods/drugs/systems:
Electronarcosis by water dipping
Decapitation and dislocation of the neck
Gassing with carbon dioxide
Vacuum tank
if NDV is observed in the slaughter-house
everything is condemned, and everything has to be
desinfected
11. Fowl pox
Poxviridae, Avipox
Sensitivity: 50°C heating 30 min
60°C 8 min
in dry scabs for months/years
pH 5-9 resistant
12. cutaneous form
nodular (proliferative) lesions on the comb, wattle,
eyelids, other non feathered areas
diphtheroid form
nodules on mucosal membranes of pharynx,
trachea, oesophagus
special histopathological changes
(cytoplasmic inclusion body)
13.
14.
15. Infectious Laryngotracheitis
Herpesvirus
Sensitivity: mild (halogen-detergents + iodophors,
heating, but (-18° C-25° C !)
Acute respiratory disease
Conjunctivitis
Laryngitis
Tracheitis
(Histopathology: intranuclear inclusion body in
epithelial cells by 3 day PI)
16.
17.
18. Infectious bronchitis
Coronavirus
Sensitivity: 56°C 15 min
at room temperature 2-3 days
common detergents destroy
Pathology:
acute catarrhal tracheitis, bronchitis
sinusitis, air sacculitis
local pneumonia
nephritis, salpingitis (eggs !)
19.
20.
21. Infectious bursal Disease
(Gumboro Disease)
Birnavirus
bursa Fabricii (B lymphoid cells)
immunsuppression !
Sensitivity: very stabil virus!
60-70°C -30 min
0.5 % chloramines 10 min
invert soap + 0,05 sodium hydroxide
22. Pathology:
haemorrhages
in muscles (legs, breast)
on mucosal membrane of proventriculi
on lymphoid tonsils of intestine
oedema and haemorrhageous inflammation of
bursa Fabricii
Diff. diagnosis: Newcastle disease
mycotoxicosis
Prevention: vaccination, hygiene
23.
24. Marek’s Disease
Herpesvirus (cell associated virus)
Sensitivity: ↑
Pathogenity:
„classical” form (lesions in peripheral nerves)
tumoral form
(lymphoid tumors in different organs or
in skin)
transient paralysis
Differential diagnosis:
Newcastle disease
leucosis
tumors
34. In these cases poultry meat is partial
condemned for human consumption
(the effected areas are condemned:
- parenchymal orgams
- intestines
- skin + muscles /breast, legs/ )