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SINCE 1937 over 600 cows and heifers and 40 mares have been artificially inseminated at the author's clinic. Collection by artificial vagina placed in a live cow, preferably one in heat, was found the most satisfactory method. Laboratory examination and storage of sperm and the actual insemination...

Bern, Switzerland
Landwirtschaftliches Jahrbuch der Schweiz, 1942, 56, pp 425-432

THE author is of the opinion that the use of biological methods of pregnancy diagnosis provides evidence for incompetence. Although direct vaginal inspection is not considered to be detrimental, the rectal method is preferable, and an experienced observer should be able to diagnose a 6-weeks'...

Berl. tierarztl. Wschr., 1934, 50, pp 474-476