Effects of and Supplementation as Direct-Fed Microbials on Rumen Microbiota of Boer and Speckled Goat Breeds.

The effects on rumen microbial communities of direct-fed probiotics, and , singly and in combination as feed supplements to both the Boer and Speckled goats were studied using the Illumina Miseq platform targeting the V3-V4 region of the 16S rRNA microbial genes from sampled rumen fluid. Thirty-six goats of both the Boer and Speckled were divided into five experimental groups: (T1) = diet + ; (T2) = diet + ; (T3) = diet + + ; (T4, positive control) = diet + antibiotic and (T5, negative control) = diet without antibiotics and without probiotics. Our results revealed that Bacteroidetes, Firmicutes, TM7, Proteobacteria, and Euryarchaeota dominate the bacterial communities.