作者: W. Kähn , W. Leidl
DOI: 10.1007/978-94-017-1249-1_5
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摘要: Transrectal sonography has been widely used in the examination of physiological conditions female genital tract bovine for several years (Chaffaux et al. 1982, Tainturier 1983, Pierson and Ginther 1984 a b, Reeves 1984, Kahn 1985, Taverne White 1985). The technology permits safe, noninvasive pregnancy diagnosis as week 4 visualization embryo foetus. Ultrasound scanning ovaries facilitates identification follicles corpora lutea. These advantages were very promising use ultrasound by practitioners well research purposes.