Mohammed alhajj

My advice to repeat the test from the same flock after one week

May be: The results are for one sample or there is a wrong with Elisa test Did you check other diseases titer from the same samples?

From the picture there is cystic beside bursa, check IB infection

Is there a suggested vaccination programme for broiler chickens?

I,m interesting to participate in this event to update my knowledge, could you link me to attend and participate in this symposium?

This is interesting subject but you didn't talk about intestinal integrity and how you evaluated it in your experiment

check water and feed containers and supply for fungi and bacteria contamination.

We found that birds fed diet supplemented with BACTOCELL® at 0.8 and 1 g/kg has better BW and BWG but increasing dietary probiotic level does not has the best performance. Title: Influence of probiotic supplementation on blood parameters and growth performance in broiler chickens. link to the article http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3730717/