Untersuchungen zur intrauterinen Besamung mit reduzierter Spermienzahl bei Jungsauen und Altsauen

reduced sperm, sows. - The goal of this study was to determine the minimal number of sperm which can be used without reduction in either the pregnancy rate or the mean litter size, using surgical deep intrauterine insemination in swine. For the first trial in this study, the sperm rich phase of the ejaculates of three fertility proven boars was pooled and adjusted to the following five sperm concentrations: 5x108, 1x108, 1x107, 5x106, 1x106 sperm in 0.5 ml AndrohepTM extender. Oestrus was induced hormonally in prepuberal gilts by the...