丁卵巢周年变化的组织学观察  

Observations of annual histological changes in ovary of Tinca tinca

作　　者：凌去非[1] 李思发[1] 梁新华[1] 殷建国 刘晓辰 

机构地区：[1]上海水产大学农业部水产种质资源与养殖生态重点开放实验室 [2]新疆建设兵团农十师额河特种鱼类繁育场,新疆北屯836000

出　　处：《上海水产大学学报》2006年第1期36-40,共5页Journal of Shanghai Fisheries University

基　　金：新疆生产建设兵团科委农业科学研究与技术开发项目(编号:NKB02N10NK16XM)

摘　　要：丁鱥是我国新疆地区经济鱼类之一，也是近年来养殖、增殖的渔业对象之一。对新疆地区丁鱥卵巢周年变化和卵母细胞发育的观察结果表明，丁鱥性成熟年龄在3～4龄；繁殖期在5月下旬～7月下旬，期间卵巢成熟系数在11．50％～12．25％，平均为11．88％；繁殖期过后，部分未产出的成熟卵退化，吸收，从11月至来年3月其卵巢发育处在重复发育的Ⅱ期，至翌年4月卵巢再次发育；根据卵巢发育特点，丁鱥属分批产卵类型。Tench, Tinca tinca is one of the important economic fishes and a new species of fish of farming and stocking in inland waters in Beitun area, Xinjiang. The annual histological changes in ovary of tench were investigated. The result showed that the age of maturity of tench was 3-4-years old in Beitun area. The spawning season was from the last ten-day of May to July. in this period, the mature coefficient of ovaries was 11.50% - 12.25%, with an average of 11.88 %. The oogenesis was composed of five consequent phases. After spawning, few mature oocytes were re-absorbed subsequently in ovary and the ovary soon degenerated into stage Ⅱ and remained in this stage from November to Match next year and began to develop again in the next April. According to the histology of oocytes and investigation of field works, tench should be classified into batch-spawing fish.

关 键 词：丁鱥 卵巢 周年变化 

分 类 号：S917[农业科学—水产科学]