Effect of different diet on the fecal microbiota in New Zealand white rabbits
In this study, we were aimed to investigate fecal microbiota in New Zealand white rabbits which were fed with different diets by 16S rRNA gene sequencing. Seventy-two 3-week-old New Zealand White rabbits were divided into three groups. Groups A, B, C were fed with either commercial diets A (16％ crude fiber, CF), diet B (22.6％ CF), or diet C (20％ CF), respectively, from 21 to 49 days of age. From 50 to 70 days of age, each groups B and C were further divided into two groups: one group was fed with the same diet and the other was fed with diet A. Our results showed fecal microbiota had higher richness and less evenness at 21 days of age in all groups. Principal coordinates analysis showed that clusters form in diet A, B and C groups, had greater difference of microbiota in BA and CA groups.
The detection of atypical porcine pestivirus in pig farms
In 2015 a new pestivirus which was named as atypical porcine pestivirus (APPV) was detected in the United States. The atypical porcine pestivirus was genetically different from known pestiviruses, including classical swine fever virus and bovine viral diarrhea virus. Experimental study suggests that APPV is a pathogen of the fetus with congenital tremors. Little is known about transmission route and the susceptibility to disinfectants. APPV genomic RNA has been detected in pig samples from multiple countries in North American, Europe and Asia. APPV genomic RNA was detected in serum samples and newborn piglets with congenital tremors in Taiwan. The sequence of APPV being detected in this study will be compared to those in Genbank and try to perform phylogenetic analysis.