FORCED NUCLEUS RETENTION METHOD IN NUCLEATED PEAR CULTIVATION AND NUCLEUS RETAINER USED IN METHOD

摘要

A forced nucleus retention method in nucleated pearl cultivation and a nucleus retainer used in the method. The nucleus retainer is composed of a nucleus retaining bar for retaining a nucleus and a base for fastening the nucleus retaining bar on a pearl shell. First, the base is fastened to an edge of the pearl shell through bolts or fastened to the outer side of the pearl shell in an adhered manner. Then, one end of the nucleus retaining bar is extended into an outer holding cavity of the pearl shell and certain pressure is exerted to hold the nucleus retaining bar onto the outer side of a visceral sac at the position of nucleus, and the other end of the nucleus retaining bar is fastened onto the base; the pearl shell is placed in culture water for 10 to 15 days of temporary culturing, and the nucleus retainer is removed; at this time, the nucleus which is implanted and has a wound healed is forcedly retained in the pearl shell without "exposure". The method has good nucleus retention effect, and the nucleus retention rate of nucleus implanted shells can reach 100% under experimental conditions, and the problem that a nucleus of a large nucleated pearl is "exposed" during culturing is solved.