Development of Female Reproductive Organs During Sexual Maturation in the Japanese Common Squid Todarodes pacificus.
Development of Female Reproductive Organs During Sexual Maturation in the Japanese Common Squid Todarodes pacificus.
复制标题
日本鱿鱼 Todarodes pacificus 性成熟过程中雌性生殖器官的发育。
DOI：
10.2331/suisan.57.2237
复制
发表时间：
1991
影响因子：
0.4
通讯作者：
K. Shimazaki
中科院分区：
文献类型：
--
作者：
Y. Ikeda;Y. Sakurai;K. Shimazaki
对饲养和产卵场捕获的普通日本乌贼雄性生殖器官在性成熟过程中的发育进行研究。根据睾丸组织学观察，将雄性成熟期划分为5个阶段。成熟度与睾丸体细胞指数(TSI：睾丸重量占体重的百分比)和附腺体细胞指数(AGSI：附腺重量占体重的百分比)进行比较。结果表明，即使在睾丸相对较小的情况下，精子也已经在睾丸中产生，并且男性的成熟过程包括两个阶段。在第一阶段，精子在睾丸中产生，在下一阶段，精子被转移到附腺，以精囊的形式储存在那里，直到与雌性交配。在成熟阶段，仍然会产生精子，这意味着在最后的性行为阶段，相同的雄性会重复交配行为。用TSI和AGSI表达雄性成熟度是可能的。成熟期TSI>；0.5和AGSI>；0.1；成熟期TSI>；2.0和AGSI>；1.0。
Development of male reproductive organs during sexual maturation was studied for Japanese common squid caught from feeding and spawning grounds. The male maturity was divided into five stages based on the histological observation of the testis. The maturity was compared with testis somatic index (TSI: testis weight as a percentage of body weight) and accessory gland somatic index (AGSI: accessory gland weight as a percentage of body weight). Results showed that sperm have already been produced in the testis even when the testis is a relatively small size, and that the male maturational process consists of two phases. In the first phase, sperm are produced in the testis and in the next phase sperm are transferred into the accessory gland, stored there in the form of spermatophore until copulation with the female. In the maturation stage, sperm are still produced, which means that copulating behavior is repeated by same male during this final sexual stage. It is possible to express the male maturity condition by TSI and AGSI. These numerical values are TSI>0.5 and AGSI>0.1 in the maturing stage; TSI>2.0 and AGSI>l.0 in the mature stage.