fawaz mahmod alterek likes this technical article:
Since May 2021, it has been possible to vaccinate long-cycle poultry against Salmonella during the production period. This benefit is due to the variation obtained for the Primun Salmonella E product, a vaccine produced by CALIER. The European agencies have considered that the extension of immunity generated by application in laying and the non-excretion of vaccine salmonellae in faeces ...
fawaz mahmod alterek likes this technical article:
Amine Benarbia (NOR-FEED) Eimeria spp. completes its life cycle within the host’s gastrointestinal tract. its reproduction has been known to damage enterocytes, leading to decreased growth performance and welfare in chickens. Controlling the reproduction cycle and limiting oocyst excretion could explain the observed efficacy of steroidal saponin-based standardized premixtu ...
fawaz mahmod alterek likes the comment:
Well, I think that killed avian mycoplasma vaccines make humoral antibody. In fact, to get registration, they only have to show production of antibody - from the monograph. It is just sort of assumed that it is correlated with protection. So I agree that they can decrease systemic pathology, tracheal populations, vertical transmission but they don't seem to be able to stop infection or vertical tr ...
fawaz mahmod alterek likes the comment:
Dr. Mujahid Kamran Thank you for your comments. We do have good experience on H9 vaccine in our area more than H5 & H7. Honestly what is going on in the flock vaccinated with H9 and no good results is due early H9 infection which the vaccine did not start giving immunity. I do have PCR results showing AI infection at 9 days and 5 days, in this case, no way the vaccine will give good results, t ...
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August 9, 2018