论文部分内容阅读
2003年夏季,从长江收集了28尾当年野生鳡鱼种,经4年池塘驯养培育成亲鱼24尾。2007年5月9~19日,从中选择了7尾母本、3尾父本进行了人工催产,用DOM、LRH-A3、PG和B型激素等4种催产剂混合注射,挤卵授精,共产卵323万粒,孵出鱼苗98.3万尾。催产率100%,受精率29%~85%,出苗率36.6%~57.1%。
In the summer of 2003, 28 wild mackerel species were collected from the Yangtze River, and 24 were domesticated and cultivated into parent fish after 4 years. From May 9 to May 19, 2007, 7 female and 3 male parents were selected for artificial oxytocin. Four kinds of oxytocin, such as DOM, LRH-A3, PG and B type hormone, A total of 3.23 million eggs, hatched fry 983,000. The rate of 100% oxytocin, fertilization rate of 29% to 85%, the emergence rate of 36.6% to 57.1%.