不同因素对黑蝶贝插核的影响

THE EFFECTS OF VARIOUS FACTORS ON THE NUCLEUS-INSERTION OF THE BLACK LIPPED PEARL OYSTERS PINCTADA MARGARITIFERA (LINNUES)

黑蝶贝Pinctada margaritifera(Linne)插核存在的问题是手术后死亡多、脱核率高。为解决这个关键问题,作者把影响黑蝶贝插核的因素,即母贝性成熟度(A),排贝时间(B),插核部位(C)和术后休养方式(D)都联系起来,用正交表安排成四因素三水平试验。于1987年的试验结果表明:手术后的黑蝶贝,留核的最优条件为D_3C_3B_1A_2,即手术贝以贝笼休养,每贝插“左右袋”(二核),术前母贝处理14—16h,挑选性腺较丰满贝插核。

Although there have been several studies on the nucleus-insertion of the black lipped pearl oysters Pinctada margaritifera (Linnues) (Fujita, 1926; the Lingshui pearl culture farm, 1970; the Tahiti pearl culture farm, 1978), the problems of serious death and ejected nucleus after operation of the parent oyster have not been solved yet. The occurrence of these problems are related to several factors: (1) the mature state of gonad of operated oysters, (2) treatment time of parent oyster prior to operation, (3) position of the nucleus-insertion in parentoyster, and (4) the methods of convalescence. These factors were laid out in the orthogonal table.The results of experiment revealed that the following conditions are considered to be better conditions for nucleus-insertion: operated oysters are cultured in cages, position of the nucleus-insertion is the left and right gonads, treatment time of parent oysters prior to operation are H-16 h, only healthy oysters (DsCaBiAj) are selected.