الخلاصة:
The study is realised in 08 avian production unities (05 broiler houses, 01 breeders house
and 02 hatcheries) in the Wilaya of Constantine. The aim was to determine the microbial
contamination level (specially bacterial contamination : total flora, staphylococcus,
enterobacteria and salmonella) of the air and the surfaces of each unity before and after cleaning
and disinfection and establishing a critical analysis of the different biosecurity measures taken in
them. A total of 1194 bacterial enumerations and more than 340 searches for salmonella have
been realised.