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野生条石鲷精巢的年周期发育 被引量:5

Annual development of the wild Oplegnathus fasciatus testis
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摘要 研究了野生雄性条石鲷性腺成熟系数、肝重指数及性腺组织学变化。结果表明:条石鲷精巢的平均性腺成熟系数(GSI)一般在0.19%~10.56%之间,繁殖期主要在5-6月;HSI的变化呈波浪型变化,1-3月是逐渐在上升,从4-6月逐渐下降,7—8月HSI是上升的,从9月开始HSI逐渐下降。条石鲷精巢为叶状结构,分为增殖前期、增殖期,生长期,成熟期,退化吸收期,系分批同步排精类型,Ⅲ期精巢非同步性非常明显,精原细胞、初级精母细胞、次级精母细胞同时存在,到了后期,这种非同步性逐渐消失。 we studied the gonad somatic index ( GSI),liver weight index and gonad histolog of the wild male Oplegnathus fasciatus. The result showed that the GSI of the 0. fasciatus was between 0.19 %-10.56 %. Reproductive season was mainly from May to June. The HSI changed in wave-type: it changed up gradually from January to March, but, changed down gradually from April to June, then increased again from July to August, and eventually, it decreased gradually after September. 0. fasciatus testis were in foliations, which were divided into five stages in an annual cycle of testicle development, preproliferative period, proliferative period, growth period, the mature period, degradation and absorption period. The type of the ejaculation was synchronization and batches. The asynchrony of testis was very obvious with the existing spermatogonia, primary spermatocytes and secondary spermatocytes. At the later stage, this non-synchronization gradually disappeared
出处 《海洋通报》 CAS CSCD 北大核心 2013年第6期700-703,共4页 Marine Science Bulletin
基金 浙江省公益技术研究农业项目(2010C32089) 浙江省海洋与渔业局水产种子种苗
关键词 条石鲷 精巢 性腺成熟系数 肝重指数 组织学 Oplegnathusfasciatus spermary GSI HSI histology
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