These standards should include monitoring of the analytical and hygienic procedures in the laboratory. “In short, when properly cooled and stored at a consistent 63° F., sperm cells will remain viable for a longer period of time.” Suppliers' Quality Controlīreeding herd managers should verify their suppliers' quality control standards before boar semen is released to the farm, Rozeboom says. (2-3° C.), sperm cell viability and shelf life may be decreased by as much as one day,” he says. “For each temperature fluctuation, up or down, of 3.6 to 5.4° F. Once semen is cooled, it should be maintained at 63° F. “Cooling reduces the risk of depleting the buffer and the nutrients provided by the semen extender. “The cooling process causes a gradual and constant reduction of metabolic activity to conserve sperm cell energy and viability,” Rozeboom points out. (17° C.), the optimal storage temperature for fresh boar semen, he explains. But once it is extended and packaged, it is ready to be cooled to 63° F. Throughout the evaluation and processing of fresh boar semen, it is very important to maintain a constant temperature. The reproductive process is a complex one, Rozeboom admits, “but the number of viable sperm cells is the key.” Steady Temps
Paul, MN.įrom semen collection and processing in the boar stud to the semen handling and insemination process in the sow herd, there is a multitude of opportunities for the process to run amuck. Rozeboom addressed swine practitioners at the mid-September Leman Swine Conference in St. Reproductive performance, no matter what your measure of success, requires that an ample number of viable sperm cells be inseminated in the sow or gilt, he adds. They can, however, have a huge impact on the storage, handling and use of the boar semen after it arrives, states Kevin Rozeboom, director of research and education at Minitube of America, Verona, WI.
For all practical purposes, your breeding herd staff cannot control the standard operating and quality control procedures of semen-supplying boar studs.
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