Ultrasonographic fetal sex determination in sheep depending on gestational age and fetal positionS. Yotov, A. Wehrend,N. Vassilev,P. Georgiev, S. Lottner,A. Antonov,A. AtanasovREPRODUCTION IN DOMESTIC ANIMALS(2008)引用 0|浏览0暂无评分AI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要