22/02/2011
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Aviram
4
Lesions vermelloses a l’intestí de pollastre
Aquest tipus d’imatges en granja es veuen relativament sovint, però no hi ha una causa gaire definida. No es considera una lesió, per se, donat que les dues explicacions que hi ha són:
- Canvis produïts per l'eutanàsia. En eutanasiar l'animal es trenquen petits vasos i formen aquesta imatge de punt vermells.
- A la literatura les associen a àrees d'hematopoesi extramedul·lar o àrees de congestió.
Es poden veure tant en animals sans com malalts. O sigui que, en principi, no se’ls atorga gaire importància patològica.
Taques vermelloses de distribució multifocal a la paret del duodè, es poden observar des de la serosa.
Aspecte de la lesió des de la mucosa, un cop obert l’intestí.
4 comment(s)
Thanks for the photos. In Ukraine we associated that lesions in dead broilers with adenovirus, Clostridium, NDV or coccidia.
In more than 70 % of such cases adenovirus was detected (pcr+histology), more rare – clostridium spp.
I am from egypt and i saw this lesion more in field cases that usually was acompanied by high mortality and i confused between newcastle 7 and clostridia .
so i ask if this sample under went lab diagnosis for both NDV and clostridia
In what type of chicken did u found? is it vaccinate using ND G7 vaccine? to determine the exact diagnose, you have to make sure with the other pathology lession. laboratory HI test can be done to make sure the diagnose
We understand that you suspect that these lesions are caused by Newcastle. In this case the lesions were observed in a broiler. In our region we are free of Newcastle and the broilers (unlike laying and breeding stock) are not vaccinated against this disease. Farms are regularly monitored against NDV because it is a mandatory declaration disease. In addition, usually when we see this lesion, there are no other lesions or signs that make us think of this disease (ND).