A graft polymer, which is obtained by grafting a branch polymer having a fluoroalkyl group onto a trunk polymer through a linkage having a CNH group, gives a solvent-based water- and oil-repellent composition having high water- and oil-repellency, high product stability and high dilution stability. These extracts can be obtained from any proanthocyanidin-containing plants, including plants of the families Ericaceae, Rosaceae, Pinaceae, Vitaceae and the like. The invention also relates to the production of avian eggs of germ-free status. The transporting system defines a detecting station for detecting the blank members and an assembly station for assembling the detected blank members to the painting system. A command processing unit in the nonvolatile memory controller determines when the parity calculator has completed generating the parity block and writes the parity block to a nonvolatile memory device.