Gregor Wittkowski

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Sexing of bovine embryos can enhance breeding programs at a rather early stage of pregnancy. The accurate predictability of the sex of the fetus can, for example, speed up breeding programs and allows an early selection of pregnant heifers for certain purposes according to the sex of their fetuses. Ultrasonic images were produced by a real image-producing(More)
Both uterine horns of 14 dairy cows with ovarian follicular cysts, and four animals affected with purulent endometritis were flushed via catheter using 30 ml phosphate buffered saline, following evisceration at a local abattori. Activity in the flushing media of alkaline phosphatase (ALP) and aspartate aminotransferase (GOT) were examined. Ovaries were(More)
After evisceration at an abattoir, both uterine horns of barren cows were flushed using 30 ml of Dulbecco's phosphate buffered saline (trial 1, 49 cows) or 10 ml sterile saline (0.9%, trial 2, 22 cows). Blood was collected from the animals' hearts (trial 2). Activities of alkaline phosphatase and progesterone concentrations (trial 2) were determined in(More)
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