Ruminal microbiota composition associated with ruminal fermentation parameters and milk yield in lactating buffalo in Guangxi, China —A preliminary study

AbstractThe ruminal microbiota of 15 dairy buffalo was characterized using high ‐throughput 16S rRNA gene amplicon sequencing. Results showed that Bacteroidetes was the dominant bacterial phylum in all rumen samples, followed by Firmicutes, Proteobacteria, Tenericutes and Verrucomicrobia.Butyrivibrio was positively correlated with average milk fat yield (R = 0.55;p = 0.03), average milk total solid yield (R = 0.56;p = 0.03) and standard milk yield (R = 0.52;p = 0.05).Acinetobacter were positively correlated with average milk protein yield (R = 0.56;p = 0.03), average milk total solid yield (R = 0.60;p = 0.02) and standard milk yield (R = 0.57;p = 0.03).Acetobacter was positively correlated with acetate (R = 0.63;p = 0.01), propionate content (R = 0.55;p = 0.03), butyrate content (R = 0.61;p = 0.02) and total VFA (R = 0.62;p = 0.01). The phyla Proteobacteria (R = 0.53;p = 0.04) and genusPrevotella (R = 0.52;p = 0.05) were positively correlated with butyrate content. Correlation analysis suggested that increasedButyrivibrio andAcinetobacter residing in the buffalo rumen could improve milk performance.

Source: Journal of Animal Physiology and Animal Nutrition - July 14, 2019 Category: Zoology Authors: Caixia Zou, Qichao Gu, Xiaokang Zhou, zhongsheng Xia, Wasim I. Muhammad, Qingfeng Tang, Mingzhen Liang, Bo Lin, Guangsheng Qin Tags: SHORT COMMUNICATION Source Type: research