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对黄金鲈♀×伊犁鲈♂杂交后代的形态特征与黄金鲈和伊犁鲈进行了比较,并就其人工养殖技术进行了探讨。结果表明:2龄杂交鲈体长26.5~31.5cm,(L=28.53±1.69cm),体重339.0~650.5g,(=447.31±94.23g)。体长为体高的3.58~3.93倍,两背鳍分离,第一背鳍棘14~16根,体侧扁,长椭圆形,形态特征与黄金鲈相似,体背为灰绿色,颜色介于黄金鲈与伊犁鲈之间,身体两侧有5~9条黑色横斑,属于温、冷水性鱼类,生长的最适温度为22~25℃,室内养殖条件下,投喂颗粒饵料,并辅以动物性饵料,生长迅速,日均增重率可达0.62g/d。
The morphological characteristics of crossbreds of golden seabream × ibis seabass were compared with those of golden perch and ibis, and the techniques of artificial breeding were discussed. The results showed that the second-breed crossbreed was 26.5-31.5 cm in length (L = 28.53 ± 1.69 cm) and the body weight was 339.0-650.5 g ( = 447.31 ± 94.23 g). Body length of 3.58 to 3.93 times the body height, the separation of the two dorsal fin, the first dorsal spinous spine 14 to 16, the body side flat, oblong, morphological characteristics similar to goldfish, body back to gray-green color between the gold bass and Ili Perch, between the body on both sides of 5 to 9 black horizontal spots, are warm, cold water fish, the optimum temperature for growth of 22 ~ 25 ℃, indoor breeding conditions, fed pellets, supplemented by animal Food, rapid growth, the average daily rate of gain of up to 0.62g / d.