Ovidn.奥维德oviduct expression vector输卵管表达载体oviduct-specific express输卵管定位表达oviduct contraceptive plug输卵管避孕栓Oviduct interstitial portion输卵管间质部Ovidustus rana polysaccharide林蛙油多糖oviduct-radiography cathete数论管造影导管oviduct-specific expression鸡输卵管表达oviduct tissue specific expression输卵管组织特异表达载体oviduct-specific expression vector鸡输卵管暂态生物反应器