Biofilm-forming ability of coccus forms of the caecal microflora of laying hens when using the probiotic and nanonutrition cobalt
Naukovij vìsnik Lʹvìvsʹkogo nacìonalʹnogo unìversitetu veterinarnoï medicini ta bìotehnologìj ìmenì S.Z. G̀žicʹkogo