牛真胃变位与扭转，典型叩诊音位置

Diagrams showing ping locations in the abomasum of cattle. A. The most typical locations of pings associated with left displaced abomasum (LDA) or rumen void. B. The most typical locations of pings associated with cecal dilatation, right displaced abomasum/abomasal volvulus (RDA/AV), or gas in the spiral colon.