Evaluation of the effects of tropical tanniferous plants on rumen microbiota using qRT PCR and DGGE analysis - Longo, Cibele; Abdalla, Adibe Luiz; Liebich, J; Janzik, I; Hummel, J; Correa, P S; Südekum, K-H; Burauel, P (Czech Journal of Animal Science, 2013)