Effect of feed additives as alternatives to in-feed antimicrobials on production performance and intestinal clostridium perfringens counts in broiler chickens - Granstad, S; Kristoffersen, A B; Benestad, S L; Sjurseth, S K; David, B; Sørensen, L; Fjermedal, A; Edvardsen, D H; Sanson, G; Løvland, A; Kaldhusdal, M (Animals (Basel), 2020)