Recently, the yak population has exhibited reproductive disorders, which are considered to be associated with Chlamydia abortus (C. abortus) in Qinghai, China. In this study, a total of 9 aborted fetuses (each from a different herd) and 126 vaginal swab samples from the 9 herds were collected and analyzed. C. abortus DNA was detected from all of the 9 aborted fetuses and 30 of the 126 vaginal s...

The domestication of animals made available stable sources of protein and enabled the development of human civilization (Mason, 1984; Diamond, 2002). Molecular and archaeological studies indicate complex phylogeographical histories of the animals used for meat (e.g. Lau et al., 1998; Luikart et al., 2001; Troy et al., 2001; Jansen et al., 2002; Beja-Pereira et al., 2004; Larson et al., 2005; Pe...