ベステル(雑種チョウザメ)の成熟度判定と人為催熟 Maturational Indicator for Artificial Propagation in the Bester(Hybrid Sturgeon)
In order to establish the method for efficient propagation of sturgeon, oocyte diameter, serum vitellogenin (Vg) level, germinal vesicle position (GVP), and <i>in vitro</i> oocyte maturation response to progesterone were examined in bester females (<i>Huso huso</i> female×<i>Acipenser ruthenus</i> male) correlated with their maturation and ovulatory response to hormonal treatment. Serum Vg level and GVP were significantly changed correlated with oocyte growth. Serum Vg level and <i>in vitro</i> oocyte maturation response to progesterone reflected ovulatory response to hormonal treatment. These results suggested that females suitable for artificial propagation can be selected by measuring these factors regularly.
日本水産学会誌 64(5), 768-774, 1998-09-15